WO2022118535A1 - 半導体モジュールおよびその製造方法 - Google Patents
半導体モジュールおよびその製造方法 Download PDFInfo
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- WO2022118535A1 WO2022118535A1 PCT/JP2021/037355 JP2021037355W WO2022118535A1 WO 2022118535 A1 WO2022118535 A1 WO 2022118535A1 JP 2021037355 W JP2021037355 W JP 2021037355W WO 2022118535 A1 WO2022118535 A1 WO 2022118535A1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/805—Coatings
- H10F39/8057—Optical shielding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
- H04N25/62—Detection or reduction of noise due to excess charges produced by the exposure, e.g. smear, blooming, ghost image, crosstalk or leakage between pixels
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/011—Manufacture or treatment of image sensors covered by group H10F39/12
- H10F39/026—Wafer-level processing
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/802—Geometry or disposition of elements in pixels, e.g. address-lines or gate electrodes
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/804—Containers or encapsulations
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/809—Constructional details of image sensors of hybrid image sensors
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F39/00—Integrated devices, or assemblies of multiple devices, comprising at least one element covered by group H10F30/00, e.g. radiation detectors comprising photodiode arrays
- H10F39/80—Constructional details of image sensors
- H10F39/811—Interconnections
Definitions
- This technology relates to semiconductor modules. More specifically, the present invention relates to a semiconductor module including an image sensor and a method for manufacturing the same.
- a technique of shading areas other than the pixel area is known in order to prevent flare and ghosts from being generated due to reflection of unnecessary light rays.
- a package in which a protective substrate is provided via a spacer material on a substrate on which a sensor is formed has been proposed (see, for example, Patent Document 1).
- a sensor window opening is provided in the protective substrate to block other light.
- functional components such as logic chips are arranged around the pixel area, light reflection from the functional components occurs, and flare and ghost occur. May occur. Therefore, it may be necessary to further prevent light reflection from the functional component.
- This technology was created in view of this situation, and aims to prevent unnecessary light reflection in semiconductor modules that employ a chip-on-chip structure or a chip-on-wafer structure.
- the present technology has been made to solve the above-mentioned problems, and the first side surface thereof is a wiring arranged on the substrate and electrically connected between the substrate and the substrate.
- a first semiconductor element having a pixel region of an image pickup element on an upper surface opposite to a surface facing the substrate, and a second semiconductor element arranged at a position different from the pixel region on the upper surface of the first semiconductor element.
- a semiconductor module comprising a semiconductor element and a covering portion covering the first and second semiconductor elements from the upper surface for at least a part of a region other than the pixel region, and a method for manufacturing the same. This has the effect of preventing unnecessary light reflection by covering the second semiconductor element arranged on the first semiconductor element with a covering portion.
- the covering portion is a frame having an opening corresponding to the pixel region and attached to the substrate so as to cover the first and second semiconductor elements from the upper surface. good. This has the effect of preventing unnecessary light reflection without hindering the entry of light into the pixel area.
- the frame may be formed of resin or metal.
- the frame may be provided with a hollow structure for a region including the second semiconductor element and the wiring. Further, in this case, a filling portion sealed and filled in the region including the second semiconductor element and the wiring may be further provided. At that time, the filling portion may be formed of a resin.
- the frame may be in contact with the upper surface of the second semiconductor element. This has the effect of blocking the upper surface of the second semiconductor element to prevent reflected light.
- the frame may be textured on the inner wall facing the pixel region. This has the effect of suppressing the reflected light from entering the pixel region.
- the frame may have a tapered structure in which the inner wall facing the pixel region is inclined toward the pixel region. This has the effect of suppressing the reflected light from entering the pixel region.
- a sealing glass bonded to the upper surface of the frame via a sealing material may be further provided.
- the frame may have a recess in the region of the inner wall facing the pixel region that comes into contact with the seal glass. This has the effect of preventing the reflection of light rays due to the light rays hitting the frame.
- the covering portion may be a sealing resin that seals other than the opening corresponding to the pixel region. This has the effect of reducing the size and height of the semiconductor module.
- a sealing glass bonded to the upper surface of the sealing resin via a sealing material may be further provided.
- a transparent resin may be further provided in the opening.
- the covering portion may be a mold resin that covers the back surface and the side surface of the second semiconductor element. This has the effect of preventing the reflected light from the second semiconductor element.
- the mold resin contains a filler.
- the second semiconductor element may be bonded to the first semiconductor element via an underfill, and the fillet of the underfill may be located outside the mold resin.
- the first and second semiconductor elements are semiconductor chips, respectively, and may form a chip-on-chip structure. Further, even if the first semiconductor element is a semiconductor wafer, the second semiconductor element is a semiconductor chip, and the first and second semiconductor elements form a chip-on-wafer structure. good.
- FIG. 1 is a diagram showing an example of the relationship between the image sensor chip 100 and the logic chip 200 in the embodiment of the present technology.
- the image sensor chip 100 is a semiconductor element including an image pickup element.
- the image sensor chip 100 is provided with a pixel region 110 of an image pickup device on the upper surface thereof, and photoelectrically converts incident light to generate a pixel signal based on a signal charge generated according to the amount of received light.
- the image sensor chip 100 is an example of the first semiconductor element described in the claims.
- the logic chip 200 is arranged on the electrode 120 provided at a peripheral position different from the pixel area 110 on the upper surface of the image sensor chip 100.
- the logic chip 200 is a semiconductor element that performs signal processing such as CDS (Correlated Double Sampling), signal amplification, and A / D (Analog-to-Digital) conversion for a pixel signal.
- the logic chip 200 is an example of the second semiconductor element described in the claims.
- These image sensor chips 100 and logic chips 200 have a chip-on-chip (CoC: Chip-on-Chip) structure. That is, it has a structure in which the logic chip 200 is laminated on the upper surface of the image sensor chip 100.
- a chip-on-chip structure is assumed, but a chip-on-wafer (CoW: Chip-on-Wafer) structure may be provided. That is, instead of the image sensor chip 100, a silicon wafer provided with an image sensor may be provided, and the logic chip 200 may be formed on the silicon wafer.
- the image sensor chip 100 includes an input / output pad 130 around it. As will be described later, when the image sensor chip 100 is arranged on the circuit board, a conduction wire (gold wire) is bonded from the input / output pad 130 to the circuit board.
- FIG. 2 is a diagram showing an example of a top view of a semiconductor module according to an embodiment of the present technology.
- the image sensor chip 100 and the logic chip 200 having the above-mentioned chip-on-chip structure are arranged on a substrate, and a frame 400 is provided on the upper surface thereof.
- the frame 400 has a shape that covers the logic chip 200 in order to prevent flare and ghost due to the reflected light from the logic chip 200.
- this frame 400 has an opening corresponding to the pixel region 110, and has a structure in which incident light is incident on the pixel region 110.
- the frame 400 may be provided with a fastening hole 490 for fixing the semiconductor module with screws.
- the frame 400 is an example of the covering portion described in the claims.
- a seal glass 500 is provided on the upper surface of the frame 400, and has a structure sealed by the seal glass 500 in order to protect the image pickup element from the external environment such as water, humidity, and external force.
- the cross-sectional view shown below shows the cross-sectional structure in the A direction in the same figure.
- FIG. 3 is a diagram showing an example of a cross-sectional structure of a semiconductor module according to the first embodiment of the present technology.
- This semiconductor module includes a flat plate circuit board 600.
- the material of the circuit board 600 may be a ceramic substrate, an organic substrate, or a flexible substrate.
- the circuit board 600 is an example of the substrate described in the claims.
- the image sensor chip 100 is adhered onto the circuit board 600 via the die bonding agent 650.
- a logic chip 200 is laminated on the upper surface of the image sensor chip 100 to form a chip-on-chip structure.
- the logic chip 200 which is an active component is mentioned, but a passive component may be laminated.
- a frame 400 is formed on the upper surfaces of the image sensor chip 100 and the logic chip 200 to cover them.
- the frame 400 has an opening on the upper surface of the pixel region 110, and causes incident light to enter the pixel region 110 while preventing reflected light from the logic chip 200.
- the frame 400 uses a resin such as black with low reflection in order to prevent reflection of light rays. Further, another resin such as an epoxy resin may be used as the material of the frame 400. Further, as the material of the frame 400, a metal such as SUS (stainless steel material) or Cu (copper) may be used.
- the seal glass 500 is adhered to the upper surface of the frame 400 via the seal resin 550.
- the seal glass 500 may be made of resin.
- the input / output pad 130 of the image sensor chip 100 and the electrode of the circuit board 600 are electrically connected by a gold wire 190.
- the frame 400 and the circuit board 600 are bonded by the frame adhesive resin 410.
- the frame 400 has a hollow structure and is not in contact with the logic chip 200 and the gold wire 190.
- the region including the logic chip 200 and the gold wire 190 is an air blank region that is not sealed and filled.
- FIG. 4 is a diagram showing an example of the resin reservoir 401 of the frame 400 according to the first embodiment of the present technique.
- a seal resin 550 is used between the upper surface of the frame 400 and the seal glass 500. At that time, a part of the sealing resin 550 may protrude to the opening side of the pixel region 110 and reflect the light rays incident on the opening. Therefore, it is desirable to form the resin reservoir 401. That is, a recess (recess) is provided at the tip of the inner wall of the frame 400 as a resin reservoir 401. As a result, it is possible to prevent the sealing resin 550 from protruding from the inner wall of the frame 400, and to prevent reflection of the light rays due to the light rays hitting the sealing resin 550.
- FIG. 5 is a diagram showing an example of embossing 402 on the inner wall of the frame 400 according to the first embodiment of the present technique.
- the light reflected on the inner wall of the frame 400 may enter the pixel region 110 and cause flare or ghost. Therefore, it is desirable to apply grain processing 402 to the inner wall of the frame 400. That is, by forming a wrinkle pattern on the inner wall of the frame 400, it is possible to suppress the reflected light from being incident on the pixel region 110.
- FIG. 6 is a diagram showing an example of a tapered structure 403 of the inner wall of the frame 400 according to the first embodiment of the present technique.
- the light reflected on the inner wall of the frame 400 may enter the pixel region 110 and cause flare or ghost. Therefore, it is desirable to have a tapered structure in which the inner wall of the frame 400 is inclined toward the pixel region 110. That is, by tilting the angle of the inner wall of the frame 400 to 45 degrees or less with respect to the pixel surface, for example, it is possible to suppress the reflected light from entering the pixel region 110.
- the incident light is prevented from being reflected from the logic chip 200.
- Light can be incident on the pixel region 110.
- FIG. 7 is a diagram showing an example of the cross-sectional structure of the semiconductor module according to the second embodiment of the present technology.
- the region including the logic chip 200 is used as the air blank region, but in the second embodiment, the region is filled with the frame adhesive resin 410 and sealed. That is, the region including the logic chip 200 and the gold wire 190 is filled with the frame adhesive resin 410 and sealed to promote heat dissipation and improve the adhesive strength.
- FIGS. 8 and 9 are views showing an example of a method for manufacturing a semiconductor module according to a second embodiment of the present technique.
- the die bond agent 650 is applied to the package of the circuit board 600 such as ceramic. Then, as shown in b in the figure, the image sensor chip 100 and the logic chip 200 having a chip-on-chip structure are placed and the die bond agent 650 is cured. Then, as shown in c in the figure, the input / output pad 130 of the image sensor chip 100 and the electrode of the circuit board 600 are electrically connected by a gold wire 190.
- the frame adhesive resin 410 is applied.
- a separately manufactured frame 400 is mounted on the circuit board 600 and cured.
- the frame adhesive resin 410 may be applied to the frame 400 side and then mounted.
- the seal resin 550 is applied to the upper surface of the frame 400. Then, as shown by g in the figure, the seal glass 500 is mounted on the seal glass 500, and then the seal resin 550 is cured. As a result, the semiconductor module according to the second embodiment is manufactured.
- the region including the logic chip 200 is sealed and filled with the frame adhesive resin 410 and covered from the upper surface by the frame 400, so that the reflected light from the logic chip 200 is covered.
- the incident light can be incident on the pixel region 110 while preventing the above.
- FIG. 10 is a diagram showing an example of a cross-sectional structure of a semiconductor module according to a third embodiment of the present technology.
- the frame 400 has a structure in which the frame 400 does not contact the logic chip 200, but in the third embodiment, the frame 400 has a structure in which the frame 400 contacts the upper surface of the logic chip 200. That is, by blocking the upper surface of the logic chip 200 with the frame 400, the reflected light from the logic chip 200 is prevented from being hit by the light rays.
- the frame 400 contacts the upper surface of the logic chip 200, but the region including the gold wire 190 on the outside of the logic chip 200 has a hollow structure and is an air blank region that is not sealed and filled.
- the structure of the frame 400 of the third embodiment has an advantage that it is easy to manufacture and is not easily damaged because it does not have a protruding portion as in the first embodiment described above. Therefore, for example, when the thickness of the logic chip 200 is thin and the influence of the side surface is small, the structure of the frame 400 of the third embodiment becomes advantageous. Further, in general, the logic chip 200 tends to generate more heat than the image sensor chip 100, so that the frame 400 and the logic chip 200 are brought into contact with each other as in the structure of the third embodiment. However, the number of heat generation paths increases, which is advantageous.
- the frame 400 contacts and closes the upper surface of the logic chip 200, so that the incident light is transmitted to the pixel region 110 while preventing the reflected light from the logic chip 200. Can be incident on.
- FIG. 11 is a diagram showing an example of the cross-sectional structure of the semiconductor module according to the fourth embodiment of the present technology.
- the region including the gold wire 190 is used as the air blank region, but in the fourth embodiment, the region is filled with the frame adhesive resin 410 and sealed. That is, the region including the gold wire 190 is filled with the frame adhesive resin 410 and sealed to further promote heat dissipation and improve the adhesive strength. Since it is the same as the above-described third embodiment except that the frame adhesive resin 410 is sealed and filled, detailed description thereof will be omitted.
- FIG. 12 is a diagram showing an example of the cross-sectional structure of the semiconductor module according to the fifth embodiment of the present technology.
- the structure uses a separately manufactured frame 400, but in the fifth embodiment, the region including the logic chip 200 and the gold wire 190 is sealed without using the frame 400. It has a structure covered with resin 450. This facilitates manufacturing, and is intended to reduce the size and height.
- the sealing resin 450 is an example of the covering portion described in the claims.
- FIGS. 13 and 14 are diagrams showing an example of a method for manufacturing a semiconductor module according to the fifth embodiment of the present technique.
- the die bond agent 650 is applied to the package of the circuit board 600 such as ceramic. Then, as shown in b in the figure, the image sensor chip 100 and the logic chip 200 having a chip-on-chip structure are placed and the die bond agent 650 is cured. Then, as shown in c in the figure, the input / output pad 130 of the image sensor chip 100 and the electrode of the circuit board 600 are electrically connected by a gold wire 190.
- the logic chip 200 and the gold wire 190 are collectively covered with the sealing resin 450.
- the sealing resin 450 is formed by fitting the periphery into a mold and pouring the material of the sealing resin 450 into the mold.
- the sealing resin 550 is applied to the upper surface of the sealing resin 450. Then, after mounting the seal glass 500 on it, the seal resin 550 is cured. As a result, the semiconductor module according to the fifth embodiment is manufactured.
- the incident light is transmitted to the pixel region 110 while preventing the reflected light from the logic chip 200. Can be incident on.
- FIG. 15 is a diagram showing an example of the cross-sectional structure of the semiconductor module according to the sixth embodiment of the present technology.
- the seal glass 500 is mounted on the upper surface of the sealing resin 450, but in the sixth embodiment, the transparent resin 590 is used in the pixel region 110 instead of the seal glass 500. It has a buried structure. That is, by not using the seal glass 500, the height of the semiconductor module as a whole is reduced.
- FIG. 16 is a diagram showing an example of a method for manufacturing a semiconductor module according to the sixth embodiment of the present technology.
- the semiconductor module according to the sixth embodiment is manufactured by applying the transparent resin 590 to the surface of the pixel of the pixel region 110 and curing it.
- the region including the logic chip 200 is covered with the sealing resin 450, and the pixel region 110 is filled with the transparent resin 590, whereby the reflected light of the logic chip 200 is reflected. It is possible to reduce the height of the entire semiconductor module while preventing the above.
- FIG. 17 is a diagram showing an example of a cross-sectional structure of a semiconductor module according to the seventh embodiment of the present technology.
- the logic chip 200 is covered with the frame 400 and the sealing resin 450, but in the seventh embodiment, the back surface and the side surface of the logic chip 200 are covered with the mold resin 470. As a result, reflection from the back surface and the side surface of the logic chip 200 is prevented, and the semiconductor module is miniaturized and reduced in height.
- the mold resin 470 is an example of the covering portion described in the claims.
- an image sensor chip 100 and a logic chip 200 having a chip-on-chip structure are mounted on a circuit board 600 via a die-bonding agent 650.
- a circuit board 600 for example, a ceramic package is assumed.
- the seal glass 500 is adhered to the upper surface of the circuit board 600 via the seal resin 550.
- the seal glass 500 does not require an anti-reflection film (AR coating: Anti-Reflection Coating) or a light-shielding film, and a normal seal glass is sufficient.
- AR coating Anti-Reflection Coating
- FIG. 18 is a diagram showing an example of a manufacturing process of a semiconductor module according to the seventh embodiment of the present technique.
- the logic chip 820 formed on the wafer 810 is cut out by dicing after microbumps are formed on the joint surface.
- the cut out individual logic chips 200 are arranged on the temporary arrangement sheet 830 as shown in b in the figure.
- the mold resin 470 is formed on the back surface and the side surface of the logic chip 200.
- FIG. 19 is a diagram showing an external example of the logic chip 820 after the micro bump 209 is formed in the seventh embodiment of the present technique.
- the micro bump 209 is formed on the logic chip 820 in the state of the wafer 800.
- the micro bump 209 is for connecting to the image sensor chip 100.
- a solder material such as tin (Sn), silver (Ag), and copper (Cu) is suitable.
- methods for forming the microbumps 209 for example, methods such as electroplating, printing, and thin film deposition can be applied.
- FIG. 20 is a diagram showing an example of the state of individualization into the logic chip 200 in the seventh embodiment of the present technology.
- the logic chip 820 formed on the wafer 800 is separated into individual logic chips 200 by dicing.
- a normal dicing blade 801 for silicon can be used.
- FIG. 21 is a diagram showing an example of the arrangement of the logic chip 200 on the temporary arrangement sheet 830 in the seventh embodiment of the present technology.
- the logic chip 200 is arranged on the temporary arrangement sheet 830 with the formation surface of the micro bump 209 facing down.
- the temporary arrangement sheet 830 for example, a dicing sheet or the like can be used.
- the thickness of the adhesive surface (for example, about 10 ⁇ m) is required so that the surface of the logic chip 200 including the micro bump 209 is completely hidden when the surface is attached.
- the thickness of the mold resin 470 on the side wall can be adjusted by the interval W of the logic chips 200 in this arrangement. That is, assuming that the logic chip 200 is cut at the center of the interval W by dicing in the subsequent step, the thickness of the mold resin 470 on the side surface of the logic chip 200 is “W / 2”.
- FIG. 22 is a diagram showing an example of the formation of the mold resin 470 in the seventh embodiment of the present technique.
- the mold resin 470 is formed on the back surface and the side surface of the logic chip 200.
- a material such as that used in a fan-out type CSP (Chip Size Package) or the like is preferably used. Basically, it is an epoxy resin and contains a filler. By including the filler in the resin, minute irregularities are formed on the surface of the resin, resulting in a so-called “pear-skinned state". It can be expected that this unevenness attenuates the light that hits the surface of the mold resin 470. As a result, a further preventive effect against flare and ghost can be obtained.
- the particle size of the filler from which such an effect can be obtained is assumed to be, for example, about 5 to 50 ⁇ m.
- a material include a phenol-based novolak resin, a biphenol-type epoxy resin (BP-ER), an O-cresol novolak-type epoxy resin (OCN-ER), and a trisphenol methane-type epoxy.
- Resin (TPM-ER), dicyclopentagen-type epoxy resin (DCPD-ER) and the like are assumed. Further, it is desirable that the filler content is determined in consideration of the influence on the fluidity.
- a mold is used to form the mold resin 470, and the mold thickness T on the back surface of the logic chip 200 is determined by the cavity thickness of the mold. Further, as the molding method, the compression molding method, in which voids and the like are less likely to occur and the fluidity of the resin is good, is suitable.
- the thickness of the mold resin 470 can be adjusted by "W / 2" and "T".
- the optimum thickness differs depending on the transmittance of the resin, it is necessary to set the thickness according to the physical characteristics of the resin so as to have an appropriate thickness.
- FIG. 23 is a diagram showing an example of the individualization of the logic chip 200 covered with the mold resin 470 in the seventh embodiment of the present technique.
- the logic chip 200 covered with the mold resin 470 is individualized by dicing.
- a dicing blade 802 for a resin used for dividing a BGA package or the like can be used.
- the individualized logic chip 200 is peeled off from the temporary arrangement sheet 830. At that time, if the adhesive remains on the surface on which the microbumps 209 are formed, a cleaning step with a solvent that does not affect the mold resin 470 may be added.
- FIG. 24 is a diagram showing an external example of the logic chip 200 covered with the mold resin 470 according to the seventh embodiment of the present technique.
- the figure shows the logic chip 200 that has been individualized after the formation of the mold resin 470.
- a is a view seen from the surface where the micro bump 209 is formed.
- b is a view seen from the back surface of the logic chip 200. Further, it is a cross-sectional view of c, the logic chip 200 in the figure.
- the logic chip 200 formed in this way is arranged on the image sensor chip 100 as follows.
- FIG. 25 is a diagram showing an example of arrangement of the logic chip 200 on the image sensor chip 100 in the seventh embodiment of the present technology.
- the logic chip 200 covered with the mold resin 470 is placed at a position different from the pixel area on the image sensor chip 100 by the collet 850.
- the underfill resin 870 is discharged from the dispenser nozzle 860 and applied. Then, by curing the applied underfill resin 870, the underfill resin 880 is formed in the lower part of the logic chip 200 as shown in c in the figure. At that time, the fillet of the underfill resin 880 is formed on the outer side of the mold resin 470.
- FIG. 26 is a diagram showing an example of a method for manufacturing a semiconductor module according to the seventh embodiment of the present technology.
- the image sensor chip 100 and the logic chip 200 having a chip-on-chip structure manufactured as described above are mounted on the circuit board 600. Therefore, as shown in a in the figure, the die bond agent 650 is applied to the mounting position. Then, as shown in b in the figure, the image sensor chip 100 and the logic chip 200 having a chip-on-chip structure are placed and the die bond agent 650 is cured. Then, as shown in c in the figure, the input / output pad of the image sensor chip 100 and the electrode of the circuit board 600 are electrically connected by a gold wire 190.
- the seal resin 550 is applied to the upper surface of the circuit board 600. Then, after mounting the seal glass 500 on it, the seal resin 550 is cured. As a result, the semiconductor module according to the seventh embodiment is manufactured.
- the incident light is transmitted to the pixel region 110 while preventing the reflected light from the logic chip 200. Can be incident on.
- FIG. 27 is a diagram showing an example of the cross-sectional structure of the semiconductor module according to the eighth embodiment of the present technology.
- the structure is such that the seal glass 500 is mounted on the upper surface of the circuit board 600, but in the eighth embodiment, the structure is provided in which the frame 400 is used as a package.
- the image sensor chip 100 and the logic chip 200 having a chip-on-chip structure are used as in the seventh embodiment described above. Since the methods for manufacturing the image sensor chip 100 and the logic chip 200 are the same as those in the seventh embodiment described above, detailed description thereof will be omitted.
- 28 and 29 are diagrams showing an example of a method for manufacturing a semiconductor module according to the eighth embodiment of the present technology.
- the image sensor chip 100 and the logic chip 200 having a chip-on-chip structure manufactured as described above are mounted on the circuit board 600. Therefore, as shown in a in the figure, the die bond agent 650 is applied to the mounting position. Then, as shown in b in the figure, the image sensor chip 100 and the logic chip 200 having a chip-on-chip structure are placed and the die bond agent 650 is cured. Then, as shown in c in the figure, the input / output pad of the image sensor chip 100 and the electrode of the circuit board 600 are electrically connected by a gold wire 190.
- the frame adhesive resin 410 is applied.
- a separately manufactured frame 400 is mounted on the circuit board 600 and cured.
- the frame adhesive resin 410 may be applied to the frame 400 side and then mounted.
- the seal resin 550 is applied to the upper surface of the frame 400. Then, as shown by g in the figure, the seal glass 500 is mounted on the seal glass 500, and then the seal resin 550 is cured. As a result, the semiconductor module according to the eighth embodiment is manufactured.
- the incident light is transmitted to the pixel region 110 while preventing the reflected light from the logic chip 200. Can be incident on.
- the present technology can have the following configurations.
- Board and A first semiconductor device having a wiring arranged on the substrate and electrically connected to the substrate and a pixel region of the image pickup element on the upper surface opposite to the surface facing the substrate.
- a second semiconductor element arranged at a position different from the pixel region on the upper surface of the first semiconductor element,
- a semiconductor module including a covering portion that covers the first and second semiconductor elements from the upper surface in at least a part of a region other than the pixel region.
- the covering portion is a frame having an opening corresponding to the pixel region and attached to the substrate so as to cover the first and second semiconductor elements from the upper surface. module.
- the frame is made of resin or metal.
- the semiconductor module according to (12) above further comprising a sealing glass bonded to the upper surface of the sealing resin via a sealing material.
- the semiconductor module according to (12) above further comprising a transparent resin at the opening.
- the covering portion is a mold resin that covers the back surface and the side surface of the second semiconductor element.
- the mold resin contains a filler.
- the second semiconductor element is bonded to the first semiconductor element via an underfill.
- the semiconductor module according to (15) above, wherein the fillet of the underfill is located outside the mold resin.
- the first semiconductor element is a semiconductor wafer.
- the second semiconductor element is a semiconductor chip, and the second semiconductor element is a semiconductor chip.
- (20) A procedure for forming a second semiconductor element at a position different from the pixel region on the upper surface of the first semiconductor element including the pixel region of the image pickup device.
- a procedure for mounting the first semiconductor element on a substrate and forming wiring for electrically connecting to the substrate and A method for manufacturing a semiconductor module, comprising a procedure for forming a covering portion that covers the first and second semiconductor elements from the upper surface in at least a part of a region other than the pixel region.
- Image sensor chip 110 Pixel area 120 Electrode 130 Input / output pad 190 Gold wire 200 Logic chip 209 Micro bump 400 Frame 402 Texture processing 403 Tapered structure 410 Frame adhesive resin 450 Sealing resin 470 Mold resin 490 Fastening hole 500 Seal glass 550 Seal resin 590 Transparent resin 600 Circuit board 650 Die bond agent 800 Wafer 801, 802 Dicing blade 810 Wafer 820 Logic chip 830 Temporary placement sheet 850 Collet 860 Dispenser nozzle 870, 880 Underfill resin
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Solid State Image Pick-Up Elements (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
Abstract
Description
1.第1の実施の形態(フレームにより論理チップを覆う構造例)
2.第2の実施の形態(フレーム接着樹脂により封止充填する構造例)
3.第3の実施の形態(フレームを論理チップの上面に接触させる構造例)
4.第4の実施の形態(フレーム接着樹脂により封止充填する構造例)
5.第5の実施の形態(フレームに代えて封止樹脂を用いる構造例)
6.第6の実施の形態(シールガラスに代えて透明樹脂を用いる構造例)
7.第7の実施の形態(モールド樹脂により論理チップを覆う第1の構造例)
8.第8の実施の形態(モールド樹脂により論理チップを覆う第2の構造例)
[チップ・オン・チップ構造]
図1は、本技術の実施の形態におけるイメージセンサチップ100および論理チップ200の関係の一例を示す図である。
[半導体モジュール]
図2は、本技術の実施の形態における半導体モジュールの上面図の一例を示す図である。
図4は、本技術の第1の実施の形態におけるフレーム400の樹脂溜まり401の一例を示す図である。
図5は、本技術の第1の実施の形態におけるフレーム400の内壁のシボ加工402の一例を示す図である。
図6は、本技術の第1の実施の形態におけるフレーム400の内壁のテーパ構造403の一例を示す図である。
[半導体モジュール]
図7は、本技術の第2の実施の形態における半導体モジュールの断面構造の一例を示す図である。
図8および図9は、本技術の第2の実施の形態における半導体モジュールの製造方法の一例を示す図である。
[半導体モジュール]
図10は、本技術の第3の実施の形態における半導体モジュールの断面構造の一例を示す図である。
[半導体モジュール]
図11は、本技術の第4の実施の形態における半導体モジュールの断面構造の一例を示す図である。
[半導体モジュール]
図12は、本技術の第5の実施の形態における半導体モジュールの断面構造の一例を示す図である。
図13および図14は、本技術の第5の実施の形態における半導体モジュールの製造方法の一例を示す図である。
[半導体モジュール]
図15は、本技術の第6の実施の形態における半導体モジュールの断面構造の一例を示す図である。
図16は、本技術の第6の実施の形態における半導体モジュールの製造方法の一例を示す図である。
[半導体モジュール]
図17は、本技術の第7の実施の形態における半導体モジュールの断面構造の一例を示す図である。
図18は、本技術の第7の実施の形態における半導体モジュールの製造過程の一例を示す図である。
[半導体モジュール]
図27は、本技術の第8の実施の形態における半導体モジュールの断面構造の一例を示す図である。
この第8の実施の形態においても、上述の第7の実施の形態と同様に、チップ・オン・チップ構造のイメージセンサチップ100および論理チップ200を利用する。これらイメージセンサチップ100および論理チップ200の製造方法は、上述の第7の実施の形態と同様であるため、詳細な説明は省略する。
(1)基板と、
前記基板上に配置されて前記基板との間で電気的に接続された配線および前記基板に対向する面とは反対の上面に撮像素子の画素領域を備える第1の半導体素子と、
前記第1の半導体素子の前記上面において前記画素領域とは異なる位置に配置された第2の半導体素子と、
前記画素領域を除く少なくとも一部の領域について前記第1および第2の半導体素子を前記上面から覆う覆い部と
を具備する半導体モジュール。
(2)前記覆い部は、前記画素領域に対応する開口を備えて前記第1および第2の半導体素子を前記上面から覆うように前記基板に取り付けられるフレームである
前記(1)に記載の半導体モジュール。
(3)前記フレームは、樹脂または金属からなる
前記(2)に記載の半導体モジュール。
(4)前記フレームは、前記第2の半導体素子および前記配線を含む領域に対して中空構造を備える
前記(2)に記載の半導体モジュール。
(5)前記第2の半導体素子および前記配線を含む領域において封止充填された充填部をさらに具備する前記(4)に記載の半導体モジュール。
(6)前記充填部は、樹脂からなる
前記(5)に記載の半導体モジュール。
(7)前記フレームは、前記第2の半導体素子の前記上面に接する
前記(2)から(6)のいずれかに記載の半導体モジュール。
(8)前記フレームは、前記画素領域に面する内壁においてシボ加工を施されたものである
前記(2)から(7)のいずれかに記載の半導体モジュール。
(9)前記フレームは、前記画素領域に面する内壁が前記画素領域に向けて傾いたテーパ構造を備える
前記(2)から(8)のいずれかに記載の半導体モジュール。
(10)前記フレームの上側の面にシール材を介して接着されたシールガラスをさらに具備する前記(2)から(9)のいずれかに記載の半導体モジュール。
(11)前記フレームは、前記画素領域に面する内壁において前記シールガラスと接触する領域に窪みを備える
前記(10)に記載の半導体モジュール。
(12)前記覆い部は、前記画素領域に対応する開口以外を封止した封止樹脂である
前記(1)に記載の半導体モジュール。
(13)前記封止樹脂の上側の面にシール材を介して接着されたシールガラスをさらに具備する前記(12)に記載の半導体モジュール。
(14)前記開口において透明樹脂をさらに具備する前記(12)に記載の半導体モジュール。
(15)前記覆い部は、前記第2の半導体素子の裏面および側面を覆うモールド樹脂である
前記(1)に記載の半導体モジュール。
(16)前記モールド樹脂は、フィラーを含有する
前記(15)に記載の半導体モジュール。
(17)前記第2の半導体素子は、前記第1の半導体素子に対してアンダーフィルを介して接合され、
前記アンダーフィルのフィレットは前記モールド樹脂の外側に位置する
前記(15)に記載の半導体モジュール。
(18)前記第1および第2の半導体素子は、それぞれ半導体チップであり、チップ・オン・チップ構造を形成する
前記(1)から(17)のいずれかに記載の半導体モジュール。
(19)前記第1の半導体素子は、半導体ウエハであり、
前記第2の半導体素子は、半導体チップであり、
前記第1および第2の半導体素子は、チップ・オン・ウエハ構造を形成する
前記(1)から(17)のいずれかに記載の半導体モジュール。
(20)撮像素子の画素領域を備える第1の半導体素子の上面において前記画素領域とは異なる位置に第2の半導体素子を形成する手順と、
基板の上に前記第1の半導体素子を搭載して前記基板との間で電気的に接続する配線を形成する手順と、
前記画素領域を除く少なくとも一部の領域について前記第1および第2の半導体素子を前記上面から覆う覆い部を形成する手順と
を具備する半導体モジュールの製造方法。
110 画素領域
120 電極
130 入出力パッド
190 金線
200 論理チップ
209 マイクロバンプ
400 フレーム
402 シボ加工
403 テーパ構造
410 フレーム接着樹脂
450 封止樹脂
470 モールド樹脂
490 締結穴
500 シールガラス
550 シール樹脂
590 透明樹脂
600 回路基板
650 ダイボンド剤
800 ウエハ
801、802 ダイシングブレード
810 ウエハ
820 論理チップ
830 仮配置シート
850 コレット
860 ディスペンサノズル
870、880 アンダーフィル樹脂
Claims (20)
- 基板と、
前記基板上に配置されて前記基板との間で電気的に接続された配線および前記基板に対向する面とは反対の上面に撮像素子の画素領域を備える第1の半導体素子と、
前記第1の半導体素子の前記上面において前記画素領域とは異なる位置に配置された第2の半導体素子と、
前記画素領域を除く少なくとも一部の領域について前記第1および第2の半導体素子を前記上面から覆う覆い部と
を具備する半導体モジュール。 - 前記覆い部は、前記画素領域に対応する開口を備えて前記第1および第2の半導体素子を前記上面から覆うように前記基板に取り付けられるフレームである
請求項1記載の半導体モジュール。 - 前記フレームは、樹脂または金属からなる
請求項2記載の半導体モジュール。 - 前記フレームは、前記第2の半導体素子および前記配線を含む領域に対して中空構造を備える
請求項2記載の半導体モジュール。 - 前記第2の半導体素子および前記配線を含む領域において封止充填された充填部をさらに具備する請求項4記載の半導体モジュール。
- 前記充填部は、樹脂からなる
請求項5記載の半導体モジュール。 - 前記フレームは、前記第2の半導体素子の前記上面に接する
請求項2記載の半導体モジュール。 - 前記フレームは、前記画素領域に面する内壁においてシボ加工を施されたものである
請求項2記載の半導体モジュール。 - 前記フレームは、前記画素領域に面する内壁が前記画素領域に向けて傾いたテーパ構造を備える
請求項2記載の半導体モジュール。 - 前記フレームの上側の面にシール材を介して接着されたシールガラスをさらに具備する請求項2記載の半導体モジュール。
- 前記フレームは、前記画素領域に面する内壁において前記シールガラスと接触する領域に窪みを備える
請求項10記載の半導体モジュール。 - 前記覆い部は、前記画素領域に対応する開口以外を封止した封止樹脂である
請求項1記載の半導体モジュール。 - 前記封止樹脂の上側の面にシール材を介して接着されたシールガラスをさらに具備する請求項12記載の半導体モジュール。
- 前記開口において透明樹脂をさらに具備する請求項12記載の半導体モジュール。
- 前記覆い部は、前記第2の半導体素子の裏面および側面を覆うモールド樹脂である
請求項1記載の半導体モジュール。 - 前記モールド樹脂は、フィラーを含有する
請求項15記載の半導体モジュール。 - 前記第2の半導体素子は、前記第1の半導体素子に対してアンダーフィルを介して接合され、
前記アンダーフィルのフィレットは前記モールド樹脂の外側に位置する
請求項15記載の半導体モジュール。 - 前記第1および第2の半導体素子は、それぞれ半導体チップであり、チップ・オン・チップ構造を形成する
請求項1記載の半導体モジュール。 - 前記第1の半導体素子は、半導体ウエハであり、
前記第2の半導体素子は、半導体チップであり、
前記第1および第2の半導体素子は、チップ・オン・ウエハ構造を形成する
請求項1記載の半導体モジュール。 - 撮像素子の画素領域を備える第1の半導体素子の上面において前記画素領域とは異なる位置に第2の半導体素子を形成する手順と、
基板の上に前記第1の半導体素子を搭載して前記基板との間で電気的に接続する配線を形成する手順と、
前記画素領域を除く少なくとも一部の領域について前記第1および第2の半導体素子を前記上面から覆う覆い部を形成する手順と
を具備する半導体モジュールの製造方法。
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| EP21900291.2A EP4258355A4 (en) | 2020-12-03 | 2021-10-08 | SEMICONDUCTOR MODULE AND ITS MANUFACTURING METHOD |
| US18/254,848 US20240006439A1 (en) | 2020-12-03 | 2021-10-08 | Semiconductor module and method for manufacturing the same |
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Cited By (2)
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| WO2024122177A1 (ja) * | 2022-12-05 | 2024-06-13 | ソニーセミコンダクタソリューションズ株式会社 | 半導体パッケージ、および、半導体パッケージの製造方法 |
| WO2025243813A1 (ja) * | 2024-05-21 | 2025-11-27 | ソニーセミコンダクタソリューションズ株式会社 | パッケージ、リードフレームおよびパッケージの製造方法 |
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- 2021-10-08 US US18/254,848 patent/US20240006439A1/en active Pending
- 2021-10-08 EP EP21900291.2A patent/EP4258355A4/en not_active Withdrawn
- 2021-10-08 WO PCT/JP2021/037355 patent/WO2022118535A1/ja not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| EP4258355A1 (en) | 2023-10-11 |
| EP4258355A4 (en) | 2024-10-09 |
| US20240006439A1 (en) | 2024-01-04 |
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