JPS54119328A - Copper alloy for lead frames - Google Patents

Copper alloy for lead frames

Info

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
Application number
JP2649978A
Other languages
Japanese (ja)
Other versions
JPS5839901B2 (en
Inventor
Hiroshi Rikukawa
Toshiya Sukai
Masahiro Tsuji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Mining Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Mining Co Ltd filed Critical Nippon Mining Co Ltd
Priority to JP53026499A priority Critical patent/JPS5839901B2/en
Publication of JPS54119328A publication Critical patent/JPS54119328A/en
Publication of JPS5839901B2 publication Critical patent/JPS5839901B2/en
Expired legal-status Critical Current

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  • 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
JP53026499A 1978-03-10 1978-03-10 Copper alloy for lead frame Expired JPS5839901B2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503573A (en) * 1973-05-14 1975-01-14
JPS50122418A (en) * 1974-03-13 1975-09-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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