ZA725894B - Improvements in or relating to printed circuit boards - Google Patents
Improvements in or relating to printed circuit boardsInfo
- Publication number
- ZA725894B ZA725894B ZA725894A ZA725894A ZA725894B ZA 725894 B ZA725894 B ZA 725894B ZA 725894 A ZA725894 A ZA 725894A ZA 725894 A ZA725894 A ZA 725894A ZA 725894 B ZA725894 B ZA 725894B
- Authority
- ZA
- South Africa
- Prior art keywords
- relating
- printed circuit
- circuit boards
- boards
- printed
- Prior art date
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
- H05K3/46—Manufacturing multilayer circuits
- H05K3/4685—Manufacturing of cross-over conductors
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing Of Printed Wiring (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
- Combinations Of Printed Boards (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712144078 DE2144078C3 (de) | 1971-09-02 | Leiterplatte mit Uberkreuzungen |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA725894B true ZA725894B (en) | 1973-05-30 |
Family
ID=5818529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA725894A ZA725894B (en) | 1971-09-02 | 1972-08-28 | Improvements in or relating to printed circuit boards |
Country Status (13)
Country | Link |
---|---|
US (1) | US3816195A (es) |
JP (1) | JPS4835362A (es) |
AR (1) | AR192815A1 (es) |
AT (1) | AT337292B (es) |
BE (1) | BE788320A (es) |
CH (1) | CH548146A (es) |
FR (1) | FR2151020A1 (es) |
GB (1) | GB1385732A (es) |
IT (1) | IT964325B (es) |
LU (1) | LU65991A1 (es) |
NL (1) | NL7211416A (es) |
SE (1) | SE398036B (es) |
ZA (1) | ZA725894B (es) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2546736C3 (de) * | 1975-10-17 | 1980-07-31 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Diskretes Überkreuzungschip für einzelne Leiterbahnüberkreuzungen bei Hybridschaltungen und Verfahren zu seiner Herstellung |
DE7624175U1 (de) * | 1976-07-31 | 1976-11-25 | Wilhelm Ruf Kg, 8000 Muenchen | Tastatur |
GB2227887A (en) * | 1988-12-24 | 1990-08-08 | Technology Applic Company Limi | Making printed circuits |
US5089687A (en) * | 1990-10-02 | 1992-02-18 | Ppg Industries, Inc. | Bus bar jumper for heatable windshield |
US5408742A (en) * | 1991-10-28 | 1995-04-25 | Martin Marietta Corporation | Process for making air bridges for integrated circuits |
TW340296B (en) * | 1997-02-21 | 1998-09-11 | Ricoh Microelectronics Kk | Method and apparatus of concave plate printing, method and apparatus for formation of wiring diagram, the contact electrode and the printed wiring nickel substrate |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3366519A (en) * | 1964-01-20 | 1968-01-30 | Texas Instruments Inc | Process for manufacturing multilayer film circuits |
US3395040A (en) * | 1965-01-06 | 1968-07-30 | Texas Instruments Inc | Process for fabricating cryogenic devices |
GB1143957A (en) * | 1965-07-13 | 1969-02-26 | Int Computers Ltd | Improvements in or relating to electrical circuit structures |
US3700445A (en) * | 1971-07-29 | 1972-10-24 | Us Navy | Photoresist processing method for fabricating etched microcircuits |
-
1972
- 1972-08-09 AT AT686772A patent/AT337292B/de not_active IP Right Cessation
- 1972-08-10 US US00279502A patent/US3816195A/en not_active Expired - Lifetime
- 1972-08-10 CH CH1181172A patent/CH548146A/xx not_active IP Right Cessation
- 1972-08-21 NL NL7211416A patent/NL7211416A/xx unknown
- 1972-08-24 GB GB3937072A patent/GB1385732A/en not_active Expired
- 1972-08-28 ZA ZA725894A patent/ZA725894B/xx unknown
- 1972-08-29 IT IT28576/72A patent/IT964325B/it active
- 1972-08-31 AR AR243871A patent/AR192815A1/es active
- 1972-08-31 FR FR7230890A patent/FR2151020A1/fr not_active Withdrawn
- 1972-09-01 JP JP47087865A patent/JPS4835362A/ja active Pending
- 1972-09-01 BE BE788320D patent/BE788320A/xx unknown
- 1972-09-01 SE SE7211357A patent/SE398036B/xx unknown
- 1972-09-01 LU LU65991A patent/LU65991A1/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE2144078B2 (de) | 1975-03-06 |
AR192815A1 (es) | 1973-03-14 |
SE398036B (sv) | 1977-11-28 |
FR2151020A1 (es) | 1973-04-13 |
JPS4835362A (es) | 1973-05-24 |
IT964325B (it) | 1974-01-21 |
NL7211416A (es) | 1973-03-06 |
GB1385732A (en) | 1975-02-26 |
DE2144078A1 (de) | 1973-03-15 |
BE788320A (fr) | 1973-03-01 |
AT337292B (de) | 1977-06-27 |
ATA686772A (de) | 1976-10-15 |
CH548146A (de) | 1974-04-11 |
LU65991A1 (es) | 1973-03-12 |
US3816195A (en) | 1974-06-11 |
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