IP Library Granted Patent US 12,183,656
Granted Patent B2
US 12,183,656 · App. 17/818,044 · Granted Dec 31, 2024

Thermally conductive sheet and method of manufacturing semiconductor device

Inventors: Mika Kobune (Tokyo, JP); Michiaki Yajima (Tokyo, JP)
Assignee: RESONAC CORPORATION
H01L23/3737H01L21/4882H01L23/3672H01L23/3675
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Quick Facts
Patent No.
US 12,183,656
App. No.
17/818,044
Granted
Dec 31, 2024
Kind
B2
Abstract

A method of manufacturing a semiconductor device includes adhering together a heat dissipating body and a plurality of heat generating bodies via a thermally conductive sheet, by applying pressure to the heat dissipating body and the plurality of heat generating bodies in a thickness direction of the thermally conductive sheet with the thermally conductive sheet disposed therebetween, the thermally conductive sheet having a compression modulus of 1.40 MPa or less under a compressive stress of 0.10 MPa at 150° C.

Claims (4)

1. A semiconductor device, comprising:

a thermally conductive sheet having a compression modulus of from 0.50 to 1.40 MPa under a compressive stress of 0.10 MPa at 150° C.,

the thermally conductive sheet adhering together a heat dissipating body and a plurality of heat generating bodies of the semiconductor device, by being disposed between the heat dissipating body and the plurality of heat generating bodies.

2. The semiconductor device according to claim 1 , wherein the thermally conductive sheet has a thermal conductivity of 7 W/(mK) or higher, the thermal conductivity being obtained using a thermal resistance measured by a steady state method.

Assignments (4)
CHANGE OF ADDRESS Recorded Feb 9, 2024
From: RESONAC CORPORATION
To: RESONAC CORPORATION
Reel/Frame 066547/0677 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S ADDRESS PREVIOUSLY RECORDED ON REEL 063016 FRAME 0952. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Apr 17, 2023
From: SHOWA DENKO MATERIALS CO., LTD.
To: RESONAC CORPORATION
Reel/Frame 063348/0944 →
CHANGE OF NAME Recorded Mar 17, 2023
From: SHOWA DENKO MATERIALS CO., LTD.
To: RESONAC CORPORATION
Reel/Frame 063016/0952 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 20, 2022
From: KOBUNE, MIKA; YAJIMA, MICHIAKI
To: SHOWA DENKO MATERIALS CO., LTD.
Reel/Frame 061143/0341 →