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US 12,303,992 B2Granted
Hybrid base plate
AssigneeAmosense Co., Ltd.
InventorJihyung Lee
Life of this patent
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Abstract
The present invention relates to a hybrid base plate and a manufacturing method therefor. Metal sheets of different materials having excellent thermal conductivity can be joined to have a thickness favorable for heat dissipation, and by arranging a metal sheet of a material with a low coefficient of thermal expansion between metal sheets with a high coefficient of thermal expansion, there is an effect of preventing warpage when manufacturing a large-area heat sink.
Claims5
A hybrid base plate comprising:
- a first metal sheet having a three-layer bonded metal sheet structure in which a metal sheet made of CuMo is bonded to a top surface of a metal sheet made of Mo and a metal sheet made of CuW is bonded to a bottom surface of the metal sheet made of Mo;
- a second metal sheet made of Cu material and brazing-bonded to a top surface of the first metal sheet;
- and
- a third metal sheet made of Cu material and brazing-bonded to a bottom surface of the first metal sheet.
1 more element
Dependencies are inferred from the claim text.