Semiconductor module having a solder-bonded cooling unit
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United States of America Patent
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Jan 16, 2018
Issued Date -
N/A
app pub date -
Aug 23, 2016
filing date -
Sep 17, 2014
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Abstract
A semiconductor module including an insulated circuit substrate having a substrate, a circuit layer on a front surface of the substrate, and a metal layer on a back surface of the substrate; a semiconductor element electrically connected to the circuit layer; a cooling unit having a ceiling board bonded to the metal layer, a bottom board opposite the ceiling board, a side wall connecting a periphery of the ceiling board and a periphery of the bottom board, and a fin connecting the ceiling board and bottom board, where thickness of the ceiling board is at least 0.5 mm and at most 2.0 mm and total thickness of the ceiling board and bottom board is at least 3 mm and at most 6 mm; and a solder layer that bonds together the metal layer and the ceiling board by melting at a temperature of at least 200° C. and at most 350° C.
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