DE3379761D1 - Multi-gauge metal strip, method of forming same and leadframes produced therefrom - Google Patents
Multi-gauge metal strip, method of forming same and leadframes produced therefromInfo
- Publication number
- DE3379761D1 DE3379761D1 DE8383303495T DE3379761T DE3379761D1 DE 3379761 D1 DE3379761 D1 DE 3379761D1 DE 8383303495 T DE8383303495 T DE 8383303495T DE 3379761 T DE3379761 T DE 3379761T DE 3379761 D1 DE3379761 D1 DE 3379761D1
- Authority
- DE
- Germany
- Prior art keywords
- leadframes
- metal strip
- produced therefrom
- forming same
- gauge metal
- 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
Links
- 239000002184 metal Substances 0.000 title 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
- B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/48—Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups H01L21/06 - H01L21/326
- H01L21/4814—Conductive parts
- H01L21/4821—Flat leads, e.g. lead frames with or without insulating supports
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Lead Frames For Integrated Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19830303495 EP0128981B1 (de) | 1983-06-16 | 1983-06-16 | Metallbänder mit Stellen ungleicher Dicke, Verfahren zur Herstellung und Leitergitter, hergestellt mit diesen Bändern |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3379761D1 true DE3379761D1 (en) | 1989-06-01 |
Family
ID=8191189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8383303495T Expired DE3379761D1 (en) | 1983-06-16 | 1983-06-16 | Multi-gauge metal strip, method of forming same and leadframes produced therefrom |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0128981B1 (de) |
DE (1) | DE3379761D1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5437096A (en) * | 1994-02-28 | 1995-08-01 | Technical Materials, Inc. | Method for making a multilayer metal leadframe |
TW200934952A (en) | 2007-11-13 | 2009-08-16 | Infinite Edge Technologies Llc | Sealed unit and spacer |
US8586193B2 (en) | 2009-07-14 | 2013-11-19 | Infinite Edge Technologies, Llc | Stretched strips for spacer and sealed unit |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3992977A (en) * | 1974-04-22 | 1976-11-23 | Olin Corporation | Production of multiple gauge strip by draw-shaving |
US3999955A (en) * | 1975-07-15 | 1976-12-28 | Allegheny Ludlum Industries, Inc. | Strip for lead frames |
US4055062A (en) * | 1975-07-15 | 1977-10-25 | Allegheny Ludlum Industries, Inc. | Process for manufacturing strip lead frames |
-
1983
- 1983-06-16 EP EP19830303495 patent/EP0128981B1/de not_active Expired
- 1983-06-16 DE DE8383303495T patent/DE3379761D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0128981A2 (de) | 1984-12-27 |
EP0128981A3 (en) | 1985-11-21 |
EP0128981B1 (de) | 1989-04-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |