JPS54119328A - Copper alloy for lead frames - Google Patents
Copper alloy for lead framesInfo
- Publication number
- JPS54119328A JPS54119328A JP2649978A JP2649978A JPS54119328A JP S54119328 A JPS54119328 A JP S54119328A JP 2649978 A JP2649978 A JP 2649978A JP 2649978 A JP2649978 A JP 2649978A JP S54119328 A JPS54119328 A JP S54119328A
- Authority
- JP
- Japan
- Prior art keywords
- lead frames
- copper
- copper alloy
- alloy
- zirconium
- 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.)
- Granted
Links
Landscapes
- Conductive Materials (AREA)
Abstract
PURPOSE: The copper alloy suitable as a lead frame matarial, having superior conductivity, mechanical strength, heat resistance and platability obtainable by containing a slight amount of zirconium and a restricted amount of chromium to copper.
CONSTITUTION: The copper alloy composed of zirconium; 0.1 to 1.0 wt%, chromium; 0.1 to 1.0%, the rest copper and unavoidable impurities. this alloy is dissolved and cast and the cast alloy is subjected to forging, hot rolling, solid solution treatment, cold rolling and aging treatment to be made to the material for lead frames. Thereby, the heat resistance, conductivity, tensile strength, etc. sufficient as lead frames may be obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53026499A JPS5839901B2 (en) | 1978-03-10 | 1978-03-10 | Copper alloy for lead frame |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53026499A JPS5839901B2 (en) | 1978-03-10 | 1978-03-10 | Copper alloy for lead frame |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54119328A true JPS54119328A (en) | 1979-09-17 |
JPS5839901B2 JPS5839901B2 (en) | 1983-09-02 |
Family
ID=12195174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53026499A Expired JPS5839901B2 (en) | 1978-03-10 | 1978-03-10 | Copper alloy for lead frame |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5839901B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58141544A (en) * | 1982-02-17 | 1983-08-22 | Toshiba Corp | Electronic parts |
JPS59117144A (en) * | 1982-12-23 | 1984-07-06 | Toshiba Corp | Lead frame and manufacture of the same |
JPS59193233A (en) * | 1983-04-15 | 1984-11-01 | Toshiba Corp | Copper alloy |
JPS61183425A (en) * | 1985-02-07 | 1986-08-16 | Furukawa Electric Co Ltd:The | Precipitation type copper alloy material for lead frame |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS503573A (en) * | 1973-05-14 | 1975-01-14 | ||
JPS50122418A (en) * | 1974-03-13 | 1975-09-26 |
-
1978
- 1978-03-10 JP JP53026499A patent/JPS5839901B2/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS503573A (en) * | 1973-05-14 | 1975-01-14 | ||
JPS50122418A (en) * | 1974-03-13 | 1975-09-26 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58141544A (en) * | 1982-02-17 | 1983-08-22 | Toshiba Corp | Electronic parts |
JPS6251503B2 (en) * | 1982-02-17 | 1987-10-30 | Tokyo Shibaura Electric Co | |
JPS59117144A (en) * | 1982-12-23 | 1984-07-06 | Toshiba Corp | Lead frame and manufacture of the same |
JPH0118977B2 (en) * | 1982-12-23 | 1989-04-10 | Tokyo Shibaura Electric Co | |
JPS59193233A (en) * | 1983-04-15 | 1984-11-01 | Toshiba Corp | Copper alloy |
JPH059502B2 (en) * | 1983-04-15 | 1993-02-05 | Tokyo Shibaura Electric Co | |
JPS61183425A (en) * | 1985-02-07 | 1986-08-16 | Furukawa Electric Co Ltd:The | Precipitation type copper alloy material for lead frame |
JPS6320906B2 (en) * | 1985-02-07 | 1988-05-02 | Furukawa Electric Co Ltd |
Also Published As
Publication number | Publication date |
---|---|
JPS5839901B2 (en) | 1983-09-02 |
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