JPH0455539B2 - - Google Patents
Info
- Publication number
- JPH0455539B2 JPH0455539B2 JP30292487A JP30292487A JPH0455539B2 JP H0455539 B2 JPH0455539 B2 JP H0455539B2 JP 30292487 A JP30292487 A JP 30292487A JP 30292487 A JP30292487 A JP 30292487A JP H0455539 B2 JPH0455539 B2 JP H0455539B2
- Authority
- JP
- Japan
- Prior art keywords
- tie bar
- lead frame
- lead
- edge
- metal plating
- 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
- 238000000034 method Methods 0.000 claims description 28
- 238000007747 plating Methods 0.000 claims description 27
- 239000010970 precious metal Substances 0.000 claims description 14
- 239000004065 semiconductor Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229910000510 noble metal Inorganic materials 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 238000013508 migration Methods 0.000 description 4
- 230000005012 migration Effects 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 238000000059 patterning Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- -1 that is Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Lead Frames For Integrated Circuits (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30292487A JPH01144661A (ja) | 1987-11-30 | 1987-11-30 | リードフレームの製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30292487A JPH01144661A (ja) | 1987-11-30 | 1987-11-30 | リードフレームの製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01144661A JPH01144661A (ja) | 1989-06-06 |
| JPH0455539B2 true JPH0455539B2 (enrdf_load_stackoverflow) | 1992-09-03 |
Family
ID=17914763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30292487A Granted JPH01144661A (ja) | 1987-11-30 | 1987-11-30 | リードフレームの製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01144661A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5908294B2 (ja) * | 2012-02-03 | 2016-04-26 | 株式会社東芝 | 半導体装置およびその製造方法 |
| JP6518547B2 (ja) * | 2015-08-07 | 2019-05-22 | 新光電気工業株式会社 | リードフレーム、半導体装置及びリードフレームの製造方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6214451A (ja) * | 1985-07-12 | 1987-01-23 | Hitachi Cable Ltd | リ−ドフレ−ム |
| JPS6447062A (en) * | 1987-08-18 | 1989-02-21 | Sumitomo Metal Mining Co | Partial plating |
-
1987
- 1987-11-30 JP JP30292487A patent/JPH01144661A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01144661A (ja) | 1989-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |