Insulating circuit board and insulating circuit board provided with cooling sink section

Insulating circuit board and insulating circuit board provided with cooling sink section

An insulating circuit board is provided with an insulating board, a circuit board bonded to a first plane of the insulating board, and a metal plate bonded to a second plane of the insulating board. The circuit board is formed of an Al alloy having a purity of 99.98% or pure Al, and the metal plate...

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1. Verfasser: KUROMITSU YOSHIROU,TORIUMI MAKOTO,NAGATOMO YOSHIYUKI,ISHIZUKA HIROYA,BABA YOUICHIRO,WATANABE TOMOYUKI,YASUI TAKUYA
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Sprache:eng
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BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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creator KUROMITSU YOSHIROU,TORIUMI MAKOTO,NAGATOMO YOSHIYUKI,ISHIZUKA HIROYA,BABA YOUICHIRO,WATANABE TOMOYUKI,YASUI TAKUYA
description An insulating circuit board is provided with an insulating board, a circuit board bonded to a first plane of the insulating board, and a metal plate bonded to a second plane of the insulating board. The circuit board is formed of an Al alloy having a purity of 99.98% or pure Al, and the metal plate is formed of an Al alloy having a purity of 98.00% but not more than 99.90%. A thickness (a) of the circuit board is, for instance, 0.2mm or more but not more than 0.8mm, and a thickness (b) of the metal plate is, for instance, 0.6mm or more but not more than 1.5mm, and an inequality of a/b=1 is satisfied. An insulating circuit board provided with a cooling sink section has the insulating circuit board, and a cooling sink section bonded to the metal plate through a second solder layer. The second solder layer is formed of a solder having Sn as a main ingredient, with a Young's modulus of, for instance, 35GPa or more, a 0.2% proof strength of, for instance, 30MPa or more, and a tensile strength of, for instance, 40MPa or more. The cooling sink section is formed of, for instance, pure Al or an Al alloy.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
title Insulating circuit board and insulating circuit board provided with cooling sink section
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