JPS6412563A - Nickel plating of lead frame - Google Patents
Nickel plating of lead frameInfo
- Publication number
- JPS6412563A JPS6412563A JP16778387A JP16778387A JPS6412563A JP S6412563 A JPS6412563 A JP S6412563A JP 16778387 A JP16778387 A JP 16778387A JP 16778387 A JP16778387 A JP 16778387A JP S6412563 A JPS6412563 A JP S6412563A
- Authority
- JP
- Japan
- Prior art keywords
- lead frame
- nickel plating
- nickel
- island
- warpage
- 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.)
- Pending
Links
Landscapes
- Electroplating Methods And Accessories (AREA)
- Lead Frames For Integrated Circuits (AREA)
Abstract
PURPOSE:To make stresses generated on both sides be canceled with each other so that warpage or lifting is prevented from generating in an island by a method wherein a nickel plating is performed also on one surface of a lead frame island as thick as the other nickel plated face. CONSTITUTION:When one face of an IC lead frame is subjected to nickel plat ing, the sulfamic acid nickel plating bath is used, where nickel, chlorine, and boric acid are controlled in concentration as required, and nickel plating is performed onto both faces of the island section of required thickness of the lead frame as thick as required. Then, the stresses induced in both the faces are canceled with each other, so that the island section is protected against lifting or warpage and nickel plating of the lead frame is made to be excellent in quality.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16778387A JPS6412563A (en) | 1987-07-07 | 1987-07-07 | Nickel plating of lead frame |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16778387A JPS6412563A (en) | 1987-07-07 | 1987-07-07 | Nickel plating of lead frame |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6412563A true JPS6412563A (en) | 1989-01-17 |
Family
ID=15856028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16778387A Pending JPS6412563A (en) | 1987-07-07 | 1987-07-07 | Nickel plating of lead frame |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6412563A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0811706A1 (en) * | 1996-06-06 | 1997-12-10 | Lucent Technologies Inc. | Conformable nickel coating and process for coating an article with a conformable nickel coating |
KR20100036169A (en) * | 2008-09-29 | 2010-04-07 | 스미토모 긴조쿠 고잔 가부시키가이샤 | Lead frame and method of manufacturing the same |
JP2011044748A (en) * | 2010-11-29 | 2011-03-03 | Sumitomo Metal Mining Co Ltd | Method of manufacturing leadframe |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5373969A (en) * | 1976-12-14 | 1978-06-30 | Toshiba Corp | Lead frame for semicinductor |
JPS53141577A (en) * | 1977-05-17 | 1978-12-09 | Mitsubishi Electric Corp | Lead frame for integrated circuit |
JPS5792854A (en) * | 1980-11-29 | 1982-06-09 | Toshiba Corp | Plastic molded type semiconductor device |
JPS5835950A (en) * | 1981-08-28 | 1983-03-02 | Hitachi Ltd | Semiconductor device |
-
1987
- 1987-07-07 JP JP16778387A patent/JPS6412563A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5373969A (en) * | 1976-12-14 | 1978-06-30 | Toshiba Corp | Lead frame for semicinductor |
JPS53141577A (en) * | 1977-05-17 | 1978-12-09 | Mitsubishi Electric Corp | Lead frame for integrated circuit |
JPS5792854A (en) * | 1980-11-29 | 1982-06-09 | Toshiba Corp | Plastic molded type semiconductor device |
JPS5835950A (en) * | 1981-08-28 | 1983-03-02 | Hitachi Ltd | Semiconductor device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0811706A1 (en) * | 1996-06-06 | 1997-12-10 | Lucent Technologies Inc. | Conformable nickel coating and process for coating an article with a conformable nickel coating |
KR20100036169A (en) * | 2008-09-29 | 2010-04-07 | 스미토모 긴조쿠 고잔 가부시키가이샤 | Lead frame and method of manufacturing the same |
JP2010080889A (en) * | 2008-09-29 | 2010-04-08 | Sumitomo Metal Mining Co Ltd | Lead frame and method of manufacturing the same |
JP2011044748A (en) * | 2010-11-29 | 2011-03-03 | Sumitomo Metal Mining Co Ltd | Method of manufacturing leadframe |
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