JPS5596664A - Copper alloy for lead frame of semiconductor element - Google Patents
Copper alloy for lead frame of semiconductor elementInfo
- Publication number
- JPS5596664A JPS5596664A JP372979A JP372979A JPS5596664A JP S5596664 A JPS5596664 A JP S5596664A JP 372979 A JP372979 A JP 372979A JP 372979 A JP372979 A JP 372979A JP S5596664 A JPS5596664 A JP S5596664A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- lead frame
- cold rolled
- semiconductor element
- billet
- 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
- 229910000881 Cu alloy Inorganic materials 0.000 title abstract 3
- 239000004065 semiconductor Substances 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 5
- 239000012535 impurity Substances 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 230000001627 detrimental effect Effects 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000007747 plating Methods 0.000 abstract 1
- 239000006104 solid solution Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/48—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor
- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/495—Lead-frames or other flat leads
- H01L23/49579—Lead-frames or other flat leads characterised by the materials of the lead frames or layers thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Lead Frames For Integrated Circuits (AREA)
- Conductive Materials (AREA)
Abstract
PURPOSE:To improve the strength and heat resistance of the lead frame of a semiconducor element by providing the lead frame composition used for the semiconductor element containing Cu alloy consisting of 0.5-3.5wt% of Fe, 0.3-20wt% of Zn and the residue of Cu and normal impurities. CONSTITUTION:An alloy containing Cu alloy consisting of 0.5-3.5wt% of Fe, 0.3-30wt% of Zn and the residue of Cu and normal impurities is molded in a low frequency melting furnace. The billet thus obtained is hot extruded and cut at its surface. The billet is then cold rolled, intermediately annealed, and cold rolled repeatedly, and finally cold rolled at 55% to thereby form a plate having a thickness of 0.5mm. The plate is then heat treated at 650 deg.C for 30min. Since this plate contains Zn which incorporates dissolving property and strong deoxidizing capacity, it does not produce an oxide detrimental for plating process. Since the plate also contains Fe higher than solid solution limit to thereby deposit iron particles, its strength and heat resistance are increased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP372979A JPS5596664A (en) | 1979-01-16 | 1979-01-16 | Copper alloy for lead frame of semiconductor element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP372979A JPS5596664A (en) | 1979-01-16 | 1979-01-16 | Copper alloy for lead frame of semiconductor element |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5596664A true JPS5596664A (en) | 1980-07-23 |
JPS6218614B2 JPS6218614B2 (en) | 1987-04-23 |
Family
ID=11565349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP372979A Granted JPS5596664A (en) | 1979-01-16 | 1979-01-16 | Copper alloy for lead frame of semiconductor element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5596664A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5748639U (en) * | 1980-09-05 | 1982-03-18 | ||
JPS59177949A (en) * | 1983-03-29 | 1984-10-08 | Toshiba Corp | Element for consumer appliances |
JPS6232631A (en) * | 1985-08-05 | 1987-02-12 | Hitachi Ltd | Integrated circuit package |
JP2014019907A (en) * | 2012-07-18 | 2014-02-03 | Sh Copper Products Corp | Copper alloy for electric-electronic component |
-
1979
- 1979-01-16 JP JP372979A patent/JPS5596664A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5748639U (en) * | 1980-09-05 | 1982-03-18 | ||
JPS59177949A (en) * | 1983-03-29 | 1984-10-08 | Toshiba Corp | Element for consumer appliances |
JPH0151063B2 (en) * | 1983-03-29 | 1989-11-01 | Tokyo Shibaura Electric Co | |
JPS6232631A (en) * | 1985-08-05 | 1987-02-12 | Hitachi Ltd | Integrated circuit package |
JPH0431187B2 (en) * | 1985-08-05 | 1992-05-25 | ||
JP2014019907A (en) * | 2012-07-18 | 2014-02-03 | Sh Copper Products Corp | Copper alloy for electric-electronic component |
Also Published As
Publication number | Publication date |
---|---|
JPS6218614B2 (en) | 1987-04-23 |
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