WO2000054561A1 - Verfahren zur erhöhung der fertigungssicherheit von lötverbindungen - Google Patents
Verfahren zur erhöhung der fertigungssicherheit von lötverbindungen Download PDFInfo
- Publication number
- WO2000054561A1 WO2000054561A1 PCT/DE2000/000377 DE0000377W WO0054561A1 WO 2000054561 A1 WO2000054561 A1 WO 2000054561A1 DE 0000377 W DE0000377 W DE 0000377W WO 0054561 A1 WO0054561 A1 WO 0054561A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metallization layer
- solder
- plated
- metallization
- layer
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/403—Edge contacts; Windows or holes in the substrate having plural connections on the walls thereof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistors
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistors electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistors electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
- H05K3/3431—Leadless components
- H05K3/3442—Leadless components having edge contacts, e.g. leadless chip capacitors, chip carriers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
- H05K1/092—Dispersed materials, e.g. conductive pastes or inks
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0332—Structure of the conductor
- H05K2201/0335—Layered conductors or foils
- H05K2201/035—Paste overlayer, i.e. conductive paste or solder paste over conductive layer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09145—Edge details
- H05K2201/09181—Notches in edge pads
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
- H05K2201/10742—Details of leads
- H05K2201/10886—Other details
- H05K2201/10909—Materials of terminal, e.g. of leads or electrodes of components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0011—Working of insulating substrates or insulating layers
- H05K3/0044—Mechanical working of the substrate, e.g. drilling or punching
- H05K3/0052—Depaneling, i.e. dividing a panel into circuit boards; Working of the edges of circuit boards
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
- H05K3/24—Reinforcing of the conductive pattern
- H05K3/245—Reinforcing conductive patterns made by printing techniques or by other techniques for applying conductive pastes, inks or powders; Reinforcing other conductive patterns by such techniques
- H05K3/247—Finish coating of conductors by using conductive pastes, inks or powders
- H05K3/248—Finish coating of conductors by using conductive pastes, inks or powders fired compositions for inorganic substrates
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/4038—Through-connections; Vertical interconnect access [VIA] connections
- H05K3/4053—Through-connections; Vertical interconnect access [VIA] connections by thick-film techniques
- H05K3/4061—Through-connections; Vertical interconnect access [VIA] connections by thick-film techniques for via connections in inorganic insulating substrates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- a printing screen which has openings associated with via holes in the printed circuit board.
- the printing screen provided with a silver conductive paste layer is placed on the printed circuit board and the underside of the printed circuit board is exposed to an atmospheric negative pressure, as a result of which the hohlzylinderformige silver paste, slocher on the walls of the via anlie 'SBu k walls electrical conductor forms
- the method according to the invention for increasing the manufacturing reliability of solder connections allows the use of fully automatic optical solder point control systems with low error rates.
- a second metallization layer to a preceding first metallization layer which can consist, for example, of an AgPd thick layer paste Wetting ability for the solder is considerably improved, so that an improved solder rise can be achieved, in particular at contact changes on ceramic supports.
- the associated increase in the total metal layer thickness brings about an increase in the resistance to the alloying of the metallization during soldering, the "leachmg" effect
- plated-through holes are produced by sucking or printing on conductive materials
- plated-through holes can be produced by separating plated-through holes in their symmetries.
- a first metallization layer is first applied, onto which a second Process step a second metallization layer is printed on.
- a first metallization layer advantageously consists of a corrosion-resistant material, such as AgPd thick-film metal.
- the first metallization layer is provided with a further metallization layer, which contributes significantly to one Improved wetting ability of the first metallization layer by the solder in the second metallization Erungstik preferably consists of a noble metal layer, such as Au, which has better wetting ability and whose wetting angle is ⁇ 60 °
- a sufficient layer thickness which is dimensioned in this
- the second metallization layer in accordance with the invention By applying the second metallization layer in accordance with the invention, the total metallization layer thickness in the edge area is increased, the wetting ability is improved so that the solder rises sufficiently.
- a second metallization layer for example made of Au
- this disadvantage can be caused by AgPd as the first metallization layer
- the combination of both metallization layers in the production of the plated-through holes in the ceramic carrier lays the foundation for improving the change in plugs resulting from the separation of the plated-through holes so that fully automatic solder point control systems can be used, which measure the solder points and ensure that the prerequisites for one Meaningful fully automatic measurement, namely a sufficient solder level, is guaranteed
- FIG. 2 shows a contact changeover formed on a ceramic carrier, an optical solder point control system being arranged opposite it
- FIG. 1 shows a ceramic carrier 1, on which a via 17 is made.
- a sensor element 3 is located on the top 2 of the ceramic carrier 1.
- the through-contact 17 consists of a first metallization layer 5 which is applied to the edges of the ceramic carrier 1.
- this metallization layer can be applied or also printed on by applying a vacuum.
- This first metallization layer 5 preferably consists of silver conductive paste or an AgPd thick-film paste, which has a high corrosion resistance and which is very resistant to alloying, the removal of the metallization during the soldering process. This material requirement is met to a high degree by a first metallization layer 5 consisting of AgPd.
- FIG. 1 shows a ceramic carrier 1, on which a via 17 is made.
- a sensor element 3 is located on the top 2 of the ceramic carrier 1.
- the through-contact 17 consists of a first metallization layer 5 which is applied to the edges of the ceramic carrier 1.
- this metallization layer can be applied or also printed on by applying a vacuum.
- the first metallization layer 5 is provided in a further method step with a second metallization layer 6, which primarily improves the wetting properties of the first metallization layer 5.
- the second metallization layer 6 therefore consists of a noble metal which improves the wetting, for example Au
- the via 17 can have a diameter of 300 ⁇ m, for example, by separating the Through-contacts 17 at the separation point 4 result in through-contacts 18, as are shown in simplified form for example in FIG. 2.
- a ceramic carrier 1 is shown, the change in contact 18 of which resulted from a via 17 in accordance with FIG. 1
- a changeover 18 has resulted from the through-contact 17 on the ceramic support 1.
- the via 18 covering the edge region of the ceramic carrier 1, like the via 17, consists of a first metallization layer 5, for example AgPd thick-film paste and a second metallization layer 6, for example made of Au or another material which advantageously improves the wetting.
- Control optics 12 are arranged opposite the contact changeover 18. This comprises a radiation source 14, a converging lens 15 and a lens 16 which focuses the beam 13 onto the solder connection 7 to be detected.
- An evaluation unit (not shown in detail here) is connected to the control optics 12 and can be used to evaluate the measurement results recorded by the control optics 12
- solder connection 7 By means of a solder connection 7, the changeover contact 18 is connected to a base 9 arranged perpendicularly to it, which is received on the upper side of a printed circuit board 10.
- the quality of a solder connection 7 can advantageously be checked and measured by measuring the solder ascent of the solder bead 7 in its edge region 8 and concluding that the solder connection 7 is correct or defective.
- the greatly improved wetting ensures that the solder rises so that its edge region 8 is detected by beam 13 of the control optics 12. If the solder connection was not carried out correctly, a solder ascent up to the edge region 8 would not be guaranteed. the Lotrochieri up to the coverage area through the Beams 13 would not be present, the soldered connection 7 would thus not be identified as correct by the evaluation unit arranged downstream of the control optics 12.
- the printing of a second metallization layer 6 according to the invention on the first metallization layer 5 also has the advantage that a layer thickness in the edge region which is not sufficient when the first metallization layer 5 is printed on can be compensated for process-technical reasons. If the layer thickness is too small in the edge area, the alloying layer is preferably removed there during soldering, which must be prevented.
- an undesirable total layer thickness of the AgPd layer thickness alone is avoided; the use of a second metallization layer 6 made of a material that improves the wetting ability of the first metallization layer 5 allows both a sufficient overall layer thickness in the edge region and a sufficient solder level at the solder connection 7 of the changeover contact 18, which can be reliably detected optically.
- the selection criterion for the second metallization layer 6 is the wetting behavior, which can be characterized by the wetting angle D.
- a wetting angle ⁇ of 0 ° characterizes an excellent one
- the AgPd thick-film paste selected as the first metallization layer 5 has a wetting angle ⁇ of 60 °.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Printing Elements For Providing Electric Connections Between Printed Circuits (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
- Manufacturing Of Printed Wiring (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/674,939 US6488199B1 (en) | 1999-03-08 | 2000-02-08 | Method for improving the manufacturing safety of weld joints |
| EP00909014A EP1080616A1 (de) | 1999-03-08 | 2000-02-08 | Verfahren zur erhöhung der fertigungssicherheit von lötverbindungen |
| JP2000604658A JP2002538967A (ja) | 1999-03-08 | 2000-02-08 | ろう接結合部の製造確実性を高めるための方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19910078.0 | 1999-03-08 | ||
| DE19910078A DE19910078A1 (de) | 1999-03-08 | 1999-03-08 | Verfahren zur Erhöung der Fertigungssicherheit von Lötverbindungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000054561A1 true WO2000054561A1 (de) | 2000-09-14 |
Family
ID=7900065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2000/000377 Ceased WO2000054561A1 (de) | 1999-03-08 | 2000-02-08 | Verfahren zur erhöhung der fertigungssicherheit von lötverbindungen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6488199B1 (de) |
| EP (1) | EP1080616A1 (de) |
| JP (1) | JP2002538967A (de) |
| DE (1) | DE19910078A1 (de) |
| WO (1) | WO2000054561A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2361000A1 (de) * | 2010-02-11 | 2011-08-24 | Nxp B.V. | Leitungsloses Chippaketaufbauverfahren und Träger |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW555722B (en) * | 2002-01-30 | 2003-10-01 | Leu-Wen Tsay | A method of manufacturing high-temperature sensor with metal/ceramic joint |
| DE10320478B3 (de) * | 2003-05-08 | 2004-08-19 | Vega Grieshaber Kg | Druck-Messanordnung mit einer Durchkontaktierung durch einen Distanzhalter zwischen einer Membran und einem Grundkörper sowie Verfahren zum Kontaktieren |
| WO2006055996A2 (de) * | 2004-11-23 | 2006-06-01 | Nessler Medizintechnik Gmbh | Verfahren zur durchkontaktierung eines elektrisch isolierenden trägermaterials |
| JP4853721B2 (ja) * | 2006-10-30 | 2012-01-11 | 株式会社デンソー | 配線板 |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3664868A (en) * | 1970-03-16 | 1972-05-23 | American Lava Corp | Gold metallizing of refractory metals on ceramic substrates |
| FR2148167A1 (en) * | 1971-08-02 | 1973-03-11 | Du Pont | Electronic device - composed of a dielectric substrate with molybdenum contg circuit pattern and gold plated |
| US3926746A (en) * | 1973-10-04 | 1975-12-16 | Minnesota Mining & Mfg | Electrical interconnection for metallized ceramic arrays |
| JPS6158259A (ja) * | 1984-08-28 | 1986-03-25 | Kyocera Corp | チツプキヤリア |
| US4681656A (en) * | 1983-02-22 | 1987-07-21 | Byrum James E | IC carrier system |
| EP0689245A2 (de) * | 1994-06-22 | 1995-12-27 | Seiko Epson Corporation | Elektronikbauteil, seine Anordnung und Herstellungsmethode |
| JPH08330173A (ja) * | 1995-05-29 | 1996-12-13 | Kyocera Corp | 積層セラミックコンデンサならびにその製造方法 |
| US5825086A (en) * | 1993-08-27 | 1998-10-20 | Ngk Spark Plug Co., Ltd. | Ceramic lid assembly for semiconductor packages |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3988498A (en) * | 1968-09-26 | 1976-10-26 | Sprague Electric Company | Low temperature fired electrical components and method of making same |
| DE2650348A1 (de) * | 1976-11-03 | 1978-05-11 | Bosch Gmbh Robert | Elektrische schaltungsanordnung |
| FR2505094A1 (fr) * | 1981-04-29 | 1982-11-05 | Trt Telecom Radio Electr | Procede de realisation des circuits hyperfrequences |
| US5235139A (en) * | 1990-09-12 | 1993-08-10 | Macdermid, Incorprated | Method for fabricating printed circuits |
| JP3423855B2 (ja) * | 1996-04-26 | 2003-07-07 | 株式会社デンソー | 電子部品搭載用構造体および電子部品の実装方法 |
| JPH10223800A (ja) * | 1997-02-12 | 1998-08-21 | Shinko Electric Ind Co Ltd | 半導体パッケージの製造方法 |
-
1999
- 1999-03-08 DE DE19910078A patent/DE19910078A1/de not_active Ceased
-
2000
- 2000-02-08 WO PCT/DE2000/000377 patent/WO2000054561A1/de not_active Ceased
- 2000-02-08 JP JP2000604658A patent/JP2002538967A/ja active Pending
- 2000-02-08 EP EP00909014A patent/EP1080616A1/de not_active Withdrawn
- 2000-02-08 US US09/674,939 patent/US6488199B1/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3664868A (en) * | 1970-03-16 | 1972-05-23 | American Lava Corp | Gold metallizing of refractory metals on ceramic substrates |
| FR2148167A1 (en) * | 1971-08-02 | 1973-03-11 | Du Pont | Electronic device - composed of a dielectric substrate with molybdenum contg circuit pattern and gold plated |
| US3926746A (en) * | 1973-10-04 | 1975-12-16 | Minnesota Mining & Mfg | Electrical interconnection for metallized ceramic arrays |
| US4681656A (en) * | 1983-02-22 | 1987-07-21 | Byrum James E | IC carrier system |
| JPS6158259A (ja) * | 1984-08-28 | 1986-03-25 | Kyocera Corp | チツプキヤリア |
| US5825086A (en) * | 1993-08-27 | 1998-10-20 | Ngk Spark Plug Co., Ltd. | Ceramic lid assembly for semiconductor packages |
| EP0689245A2 (de) * | 1994-06-22 | 1995-12-27 | Seiko Epson Corporation | Elektronikbauteil, seine Anordnung und Herstellungsmethode |
| JPH08330173A (ja) * | 1995-05-29 | 1996-12-13 | Kyocera Corp | 積層セラミックコンデンサならびにその製造方法 |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 10, no. 221 (E - 424) 2 August 1986 (1986-08-02) * |
| PATENT ABSTRACTS OF JAPAN vol. 1997, no. 4 30 April 1997 (1997-04-30) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2361000A1 (de) * | 2010-02-11 | 2011-08-24 | Nxp B.V. | Leitungsloses Chippaketaufbauverfahren und Träger |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19910078A1 (de) | 2000-09-28 |
| JP2002538967A (ja) | 2002-11-19 |
| US6488199B1 (en) | 2002-12-03 |
| EP1080616A1 (de) | 2001-03-07 |
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