JPS57130455A - Prevention of electrolytic corrosion at junction between different metals in electric parts - Google Patents

Prevention of electrolytic corrosion at junction between different metals in electric parts

Info

Publication number
JPS57130455A
JPS57130455A JP1491981A JP1491981A JPS57130455A JP S57130455 A JPS57130455 A JP S57130455A JP 1491981 A JP1491981 A JP 1491981A JP 1491981 A JP1491981 A JP 1491981A JP S57130455 A JPS57130455 A JP S57130455A
Authority
JP
Japan
Prior art keywords
junction
outward
brazing
spacer
vicinity
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
JP1491981A
Other languages
Japanese (ja)
Other versions
JPS604277B2 (en
Inventor
Katsumi Tanaka
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel 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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP1491981A priority Critical patent/JPS604277B2/en
Publication of JPS57130455A publication Critical patent/JPS57130455A/en
Publication of JPS604277B2 publication Critical patent/JPS604277B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/367—Cooling facilitated by shape of device
    • H01L23/3672—Foil-like cooling fins or heat sinks
    • 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

Abstract

PURPOSE:To prevent contamination on a copper plate surface which is to be an electrode surface by a method wherein a junction plane between an Al product and a copper plate is formed to be protruded outward and the copper plates are joined by butting so as to be extended at its extreme circumference more outward than the junction plane and anti-corrosion treatment such as painting or the like is applied in the vicinity of the junction. CONSTITUTION:For example heat radiating fins 1 consisting of Al plates are fixed by brazing to a spacer 2 made of Al, and at the end of the spacer 2 which is extended more outward than the most outward fin, copper plates 3 which have more larger diameters than that of the spacer 2 are jointed by brazing. On one of copper plates 3 a semiconductor element 4 or the like is attached and another copper plate 3 is used as an electrode terminal. After junction is performed painting and (or) resin coking are (is) applied on the vicinity (c) of junction planes. By this method because the vicinity of junction planes is formed to be a circular groove, contamination on an electrode surface (d) can hardly occur when brazing or corrosion protecting treatment is applied, and falling-off of painting or the like also can hardly occur.
JP1491981A 1981-02-05 1981-02-05 Method for preventing electrolytic corrosion of dissimilar metal joints in electrical parts Expired JPS604277B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1491981A JPS604277B2 (en) 1981-02-05 1981-02-05 Method for preventing electrolytic corrosion of dissimilar metal joints in electrical parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1491981A JPS604277B2 (en) 1981-02-05 1981-02-05 Method for preventing electrolytic corrosion of dissimilar metal joints in electrical parts

Publications (2)

Publication Number Publication Date
JPS57130455A true JPS57130455A (en) 1982-08-12
JPS604277B2 JPS604277B2 (en) 1985-02-02

Family

ID=11874366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1491981A Expired JPS604277B2 (en) 1981-02-05 1981-02-05 Method for preventing electrolytic corrosion of dissimilar metal joints in electrical parts

Country Status (1)

Country Link
JP (1) JPS604277B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8012780B2 (en) 2007-08-13 2011-09-06 Sumitomo Electric Industries, Ltd. Method of fabricating semiconductor laser
US8605769B2 (en) 2004-12-08 2013-12-10 Sumitomo Electric Industries, Ltd. Semiconductor laser device and manufacturing method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61121168U (en) * 1985-01-18 1986-07-30

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8605769B2 (en) 2004-12-08 2013-12-10 Sumitomo Electric Industries, Ltd. Semiconductor laser device and manufacturing method thereof
US8012780B2 (en) 2007-08-13 2011-09-06 Sumitomo Electric Industries, Ltd. Method of fabricating semiconductor laser

Also Published As

Publication number Publication date
JPS604277B2 (en) 1985-02-02

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