Patent ID: 11967539
Assignee: FUJITSU LIMITED
Field: Surface technology, coating (Chemistry)
Classification: CPC B  H | IPC B  H

Claim 0:
1. A manufacturing method of a heat dissipation sheet, comprising:
fabricating a first sheet composed of a plurality of first carbon nanotubes;
fabricating a second sheet composed of a plurality of second carbon nanotubes different from the first carbon nanotubes in an amount of deformation when pressure is applied; and
stacking and coupling the first sheet and the second sheet,
the first sheet is configured as a heat dissipation layer,
the second sheet being configured as a tight contact layer, deformation of the tight contact layer being for following deformation of a heat generation source,
the first carbon nanotubes and the second carbon nanotubes are different in an amount of deformation when first pressure to the first carbon nanotubes is applied and second pressure to the second nanotubes is applied, the first pressure being equal to the second pressure,
a first amount of deformation that is an amount of deformation when the first pressure to the first carbon nanotubes is applied is an amount of deformation of several percentages with respect to a length before pressure is applied, and
a second amount of deformation that is an amount of deformation when the second pressure to the second carbon nanotubes is applied is an amount of deformation of several tens of percentages with respect to a length before pressure is applied.