US 12,087,661 B2
Heat conducting sheet and electronic device using same
Akihito Konishi, Hokkaido (JP); Norihiro Kawamura, Hokkaido (JP); Youji Shirato, Hokkaido (JP); and Naoki Saitou, Hokkaido (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 17/418,826
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Jan. 15, 2020, PCT No. PCT/JP2020/000984
§ 371(c)(1), (2) Date Jun. 27, 2021,
PCT Pub. No. WO2020/162117, PCT Pub. Date Aug. 13, 2020.
Claims priority of application No. 2019-021381 (JP), filed on Feb. 8, 2019; and application No. 2019-046614 (JP), filed on Mar. 14, 2019.
Prior Publication US 2022/0059431 A1, Feb. 24, 2022
Int. Cl. H05K 7/20 (2006.01); H01L 23/373 (2006.01)
CPC H01L 23/3735 (2013.01) 5 Claims
OG exemplary drawing
 
1. A heat conducting sheet comprising:
a graphite sheet that has a main surface having a rectangular shape; and
an attachment sheet that is provided on the main surface of the graphite sheet and covers at least two opposite sides of the main surface, the attachment sheet being disposed out from the two opposite sides of the main surface of the graphite sheet,
wherein
the main surface of the graphite sheet has a first region not covered with the attachment sheet, and a second region covered with the attachment sheet, and
a thickness of the attachment sheet is smaller than (T0−T1) where T0 is an initial thickness of the graphite sheet, and T1 is a thickness of the graphite sheet when a pressure of 100 kPa is applied.