EP0976457B1 - Verfahren zum Behandeln von Halbleitermaterial - Google Patents
Verfahren zum Behandeln von Halbleitermaterial Download PDFInfo
- Publication number
- EP0976457B1 EP0976457B1 EP99113591A EP99113591A EP0976457B1 EP 0976457 B1 EP0976457 B1 EP 0976457B1 EP 99113591 A EP99113591 A EP 99113591A EP 99113591 A EP99113591 A EP 99113591A EP 0976457 B1 EP0976457 B1 EP 0976457B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- semiconductor material
- energy
- shock waves
- pulse
- fragments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/0005—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by breaking, e.g. dicing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonic waves or irradiation, for disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonic waves or irradiation, for disintegrating
- B02C2019/183—Crushing by discharge of high electrical energy
Definitions
- the invention relates to a method for treating Semiconductor material.
- the invention relates to a method for treating Semiconductor materials, in which one or more by means of a Energy converter generated shock waves, in a liquid Transfer medium to a rod-shaped semiconductor material are characterized in that the energy converter from Semiconductor material has a distance of 1 cm to 100 cm and a shock wave a pulse energy of 1 to 20 kJ and one Has pulse rise time up to the energy maximum of 1 to 5 ⁇ s.
- Shock waves are caused, for example, by explosive charges, electrical discharges, on electromagnetic or Piezoelectric path can be generated.
- the invention thus also relates to the use of the Method according to the invention for crushing Semiconductor material.
- shock waves from electrical discharge between two electrodes in the focal point of a semi-ellipsoid reflector to create. That between the discharge the plasma forming the electrodes leads to a Speed of sound propagating in the transmission medium, spherical shock wave front, which from the walls of the Reflector reflects and in the focus of an imaginary to Half-ellipsoids arranged in mirror symmetry is bundled. The is around this focal point Focus area of the semi-ellipsoid reflector.
- the size of the energy input determines in which area and how many microcracks form and thus the size of the fracture.
- the shock wave is focused on the semiconductor rod usually not in the case of bars made of currently customary materials required.
- the method according to the invention does not make a small one Part of the rod crushed, but the whole with the shock wave
- the loaded rod area is shredded homogeneously.
- the rod When using 1 or two energy converters, the rod preferably treated bit by bit with one pulse each.
- each two energy converters at an angle of 180 ° to each other arranged.
- the semiconductor material is preferably comminuted at low temperatures, for example room temperature, see above that an induced by high temperatures and / or accelerated diffusion of superficially adsorbed Foreign substances, especially foreign metals, largely avoided becomes.
- the work surfaces of the tools for transportation and the Positioning of the semiconductor material are to Exclude impurities, preferably made of plastic, such as polyethylene (PE), polytetrafluoroethylene (PTFE) or polyvinylidene difluoride (PVDF), or from the Material such as the comminuted material itself. As well it has proven to be convenient to use the inner surfaces of the Line the shredding chamber with plastic.
- PE polyethylene
- PTFE polytetrafluoroethylene
- PVDF polyvinylidene difluoride
- the method according to the invention enables use for the first time the shock wave comminution for the comminution of Semiconductor material such that a specifically adjustable Fractional size distribution of the semiconductor material is obtained.
- the inventive method has the advantage that Strength and possibly also direction of the impulses that affect the Crystal surface act, a force is exerted by their effect, the number and direction of microcracks being affected. The number and orientation of the cracks along The grain boundaries of the material determine the shape and size of the newly created fragments.
- the oxidizing compounds occur in very high local concentrations, which are in the mol / l range, since the compounds are initially limited to the cavitation bubbles, that is, they are formed there and z. T. also be destroyed again.
- a cleaning effect occurs not only through the implosion of the cavitation bubbles on the surface of the semiconductor material, but also through the cleaning action of the oxidizing compounds which act on the surface in high local concentrations when the gas bubbles break up on the surface of the semiconductor material.
- the method according to the invention is massive for the treatment, large-volume body made of semiconductor material, preferably made of mono- or polycrystalline silicon, suitable.
- the semiconductor material is preferably polycrystalline silicon.
- Fig. 1 shows an apparatus for performing the inventive method as used in Example 1 becomes.
- a piece of a from a separation plant polycrystalline silicon rod (1) was on a base made of polysilicon rods (2) completely into a water-filled one Basin (3) immersed. At a distance of 2 cm from the Rod surface are two semi-ellipsoid reflectors (4) arranged so that they form an angle of 180 ° to each other, being in the middle between the semi-ellipsoid reflectors the silicon rod (1) is located.
- the semi-ellipsoid reflectors (4) are via supply lines (5) with the associated Energy supply facilities (6) connected.
- a shock wave pulse with a pulse energy of 12kJ and a pulse duration of 3 ⁇ s was generated by igniting an arc between the electrodes (8) of the semi-ellipsoid reflector.
- the shock wave runs over an elastic membrane (7) to the surface of the silicon rod (1).
- the position of the rod in the pelvis was chosen so that it at least approximately matched the focusing area of a semi-ellipsoid reflector.
- the rod section exposed to the shock wave had a diameter of 190 mm and a length of 1.20 m.
- the treatment resulted in fragments of the following size: Fracture size (longest dimension / cm) Proportion (% by weight) 0 to 1 2nd > 1 to 4.5 3rd > 4.5 to 7 15 > 7 to 12 75 > 12 5
- This size distribution is for further processing in Crucible pulling process very well suited.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
| Bruchgröße (längste Ausdehnung/cm) | Anteil (Gew.%) |
| 0 bis 1 | 2 |
| > 1 bis 4.5 | 3 |
| > 4.5 bis 7 | 15 |
| > 7 bis 12 | 75 |
| > 12 | 5 |
Claims (10)
- Verfahren zum Behandeln von Halbleitermaterial bei dem eine oder mehrere mittels eines Energiewandlers erzeugte Schockwellen, in einem flüssigen Medium auf ein stabförmiges Halbleitermaterial übertragen werden, dadurch gekennzeichnet, daß der Energiewandler vom Halbleitermaterial einen Abstand von 1 cm bis 100 cm hat und eine Schockwelle eine Pulsenergie von 1 bis 20 kJ und eine Pulsanstiegszeit bis zum Energiemaximum von 1 bis 5 µs hat.
- Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß der Energiewandler einen Abstand von 1 bis 12 cm von der Oberfläche des Halbleitermaterials hat.
- Verfahren gemäß Anspruch 1 oder 2, dadurch gekennzeichnet eine Schockwelle eine Pulsenergie von 10 bis 15 kJ, besonders bevorzugt 11 bis 13 kJ hat.
- Verfahren gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Schockwelle eine Pulsanstiegszeit bis zum Energiemaximum von 2 bis 4 µs hat.
- Verfahren gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß eine Schockwelle pro jeweils beaufschlagtem Abschnitt des Halbleitermaterials eingesetzt wird, die einen Zerfall des bestrahlten Halbleitermaterials bewirkt.
- Verfahren gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß 1 bis 20 Energiewandler eingesetzt werden.
- Verfahren gemäß einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß als Energiewandler ein Halbellipsoidreflektor eingesetzt wird.
- Verfahren gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß jeweils zwei Energiewandler im Winkel von 180° gegeneinander angeordnet sind.
- Verwendung des Verfahrens gemäß einem der Ansprüche 1 bis 8 zum Zerkleinern von Halbleitermaterial.
- Verwendung des Verfahrens gemäß einem der Ansprüche 1 bis 8 zur Reinigung von Halbleitermaterial.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19834447A DE19834447A1 (de) | 1998-07-30 | 1998-07-30 | Verfahren zum Behandeln von Halbleitermaterial |
| DE19834447 | 1998-07-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0976457A1 EP0976457A1 (de) | 2000-02-02 |
| EP0976457B1 true EP0976457B1 (de) | 2000-11-15 |
Family
ID=7875902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99113591A Expired - Lifetime EP0976457B1 (de) | 1998-07-30 | 1999-07-08 | Verfahren zum Behandeln von Halbleitermaterial |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6360755B1 (de) |
| EP (1) | EP0976457B1 (de) |
| JP (1) | JP3180910B2 (de) |
| DE (2) | DE19834447A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI802721B (zh) * | 2018-07-04 | 2023-05-21 | 日商三菱綜合材料股份有限公司 | 半導體原料之破碎方法或裂痕產生方法及半導體原料塊之製造方法 |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1167786A (ja) * | 1997-08-25 | 1999-03-09 | Mitsubishi Electric Corp | 半導体装置及びその製造方法 |
| DE10009569C2 (de) | 2000-02-29 | 2003-03-27 | Schott Glas | Verfahren und Vorrichtung zum Zerkleinern von Glaskörpern mittels Mikrowellenerwärmung |
| IL147049A0 (en) * | 2001-12-12 | 2002-08-14 | Do Coop Techmologies Ltd | Thermal process involving cold rf irradiated liquid as core method for producing nano-size particles |
| DE10211958A1 (de) * | 2002-03-18 | 2003-10-16 | Wacker Chemie Gmbh | Hochreines Silica-Pulver, Verfahren und Vorrichtung zu seiner Herstellung |
| EP1700824A1 (de) | 2005-03-09 | 2006-09-13 | Degussa AG | Granulate basierend auf pyrogen hergestelles silicon dioxid, sowie Verfahren zu deren Herstellung und Verwendung dergleichen |
| DE102005019873B4 (de) * | 2005-04-28 | 2017-05-18 | Wacker Chemie Ag | Vorrichtung und Verfahren zum maschinellen Zerkleinern von Halbleitermaterialien |
| DE102007047210A1 (de) | 2007-10-02 | 2009-04-09 | Wacker Chemie Ag | Polykristallines Silicium und Verfahren zu seiner Herstellung |
| DE102009014562A1 (de) * | 2009-03-16 | 2010-09-23 | Schmid Silicon Technology Gmbh | Aufreinigung von metallurgischem Silizium |
| RU2411083C2 (ru) * | 2009-03-20 | 2011-02-10 | Юрий Владимирович Борисов | Способ диспергирования и сепарации материалов и устройство для его осуществления |
| CN102600948B (zh) * | 2012-03-29 | 2014-04-02 | 北京德高洁清洁设备有限公司 | 一种全自动机械化多晶硅破碎机 |
| CN103372490B (zh) * | 2012-04-13 | 2015-04-22 | 洛阳理工学院 | 一种带有回转臂的自平衡冲击多晶硅破碎机 |
| DE102012213565A1 (de) | 2012-08-01 | 2014-02-06 | Wacker Chemie Ag | Vorrichtung und Verfahren zum Zerkleinern eines polykristallinen Siliciumstabs |
| CN102836765B (zh) | 2012-09-18 | 2014-12-31 | 新特能源股份有限公司 | 一种破碎多晶硅的方法及其装置 |
| AU2014311321A1 (en) * | 2013-08-29 | 2016-03-10 | The Board Of Trustees Of The Leland Stanford Junior University | Method of controlled crack propagation for material cleavage using electromagnetic forces |
| JP6339994B2 (ja) * | 2015-12-08 | 2018-06-06 | パナソニック株式会社 | 放電破砕装置及び放電破砕方法 |
| JP6722874B2 (ja) * | 2017-06-06 | 2020-07-15 | パナソニックIpマネジメント株式会社 | 板状物品の分解装置 |
| JP2021107042A (ja) * | 2019-12-27 | 2021-07-29 | 三菱マテリアル株式会社 | 半導体材料の破砕方法又はクラック発生方法、及び半導体材料塊の製造方法 |
| RU2733434C1 (ru) * | 2020-02-27 | 2020-10-01 | Анатолий Евгеньевич Волков | Способ и устройство электроимпульсного дробления-сепарации |
| US11630153B2 (en) * | 2021-04-26 | 2023-04-18 | Winbond Electronics Corp. | Chip testing apparatus and system with sharing test interface |
| CN113304848B (zh) * | 2021-07-08 | 2021-10-08 | 江苏鑫华半导体材料科技有限公司 | 一种硅块破碎装置及使用方法、硅块破碎方法及应用方法 |
| CN114433330B (zh) * | 2022-02-08 | 2023-06-02 | 西安交通大学 | 一种可控冲击波破碎矿石的装置及方法 |
| US12528088B2 (en) | 2022-02-11 | 2026-01-20 | Sharp Pulse Corp. | Material extracting system and method |
| US11865546B2 (en) * | 2022-02-11 | 2024-01-09 | Sharp Pulse Corp. | Material extracting system and method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313573A (en) * | 1980-02-25 | 1982-02-02 | Battelle Development Corporation | Two stage comminution |
| US4653697A (en) * | 1985-05-03 | 1987-03-31 | Ceee Corporation | Method and apparatus for fragmenting a substance by the discharge of pulsed electrical energy |
| US5082502A (en) * | 1988-09-08 | 1992-01-21 | Cabot Corporation | Cleaning apparatus and process |
| DE4218283A1 (de) | 1992-05-27 | 1993-12-02 | Wacker Chemitronic | Verfahren zum kontaminationsfreien Zerkleinern von Halbleitermaterial, insbesondere Silicium |
| DE19534232C2 (de) * | 1995-09-15 | 1998-01-29 | Karlsruhe Forschzent | Verfahren zur Zerkleinerung und Zertrümmerung von aus nichtmetallischen oder teilweise metallischen Bestandteilen konglomerierten Festkörpern und zur Zerkleinerung homogener nichtmetallischer Festkörper |
| DE19545579C2 (de) | 1995-12-07 | 2003-05-22 | Rheinmetall W & M Gmbh | Verfahren und Anordnung zur Zerkleinerung von Materialien in metallischen Gehäusen, insbesondere Autokatalysatoren |
| US6033994A (en) * | 1997-05-16 | 2000-03-07 | Sony Corporation | Apparatus and method for deprocessing a multi-layer semiconductor device |
| DE19749127A1 (de) * | 1997-11-06 | 1999-05-20 | Wacker Chemie Gmbh | Verfahren zur Vorbereitung der Zerkleinerung eines Kristalls |
-
1998
- 1998-07-30 DE DE19834447A patent/DE19834447A1/de not_active Ceased
-
1999
- 1999-07-08 DE DE59900015T patent/DE59900015D1/de not_active Expired - Fee Related
- 1999-07-08 EP EP99113591A patent/EP0976457B1/de not_active Expired - Lifetime
- 1999-07-27 JP JP21248199A patent/JP3180910B2/ja not_active Expired - Fee Related
- 1999-07-28 US US09/362,462 patent/US6360755B1/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI802721B (zh) * | 2018-07-04 | 2023-05-21 | 日商三菱綜合材料股份有限公司 | 半導體原料之破碎方法或裂痕產生方法及半導體原料塊之製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0976457A1 (de) | 2000-02-02 |
| JP2000079350A (ja) | 2000-03-21 |
| US6360755B1 (en) | 2002-03-26 |
| DE59900015D1 (de) | 2000-12-21 |
| DE19834447A1 (de) | 2000-02-10 |
| JP3180910B2 (ja) | 2001-07-03 |
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