公开(公告)号：US20150004365A1

公开(公告)日：2015-01-01

申请号：US14367978

申请日：2012-12-28

Applicant: Toyobo Co., Ltd.

Inventor： Hirokazu Nishimura ,  Kana Hashimoto

IPC: H05K7/20 ,  B05D5/00

CPC classification number: H05K7/20481 ,  B05D1/16 ,  B05D5/00 ,  B29C70/382 ,  B29C70/88 ,  H01L23/3733 ,  H01L23/3735 ,  H01L23/3737 ,  H01L2924/0002 ,  Y10T428/24355 ,  H01L2924/00012 ,  H01L2924/00

Abstract: To provide a high heat dissipation sheet that enables electrical insulation properties while also making possible a simple construction method.In the present invention, short fibers with electrical insulation properties and thermal conductive properties are electrostatically flocked at high density onto a substrate coated with adhesive, under conditions that allow for high density electrostatic flocking, the erect short fibers are adhered and fixed, binder resin is impregnated and is hardened, and subsequently one surface of the sheet is abraded so that the insulating and thermally conductive fibers penetrate and are arrayed at high density in the direction of the sheet thickness. As a result, a heat dissipation sheet is formed in which the fibers protrude from one surface while the opposite surface is made smooth so that heat from an exothermic material can be quickly absorbed by the opposite surface and quickly dissipated into the air by the fiber protrusion surface.

Abstract translation: 提供能够实现电绝缘性能的高散热片，同时也可以简单的施工方法。 在本发明中，具有电绝缘性能和导热性能的短纤维在允许高密度静电植绒的条件下以高密度静电地植入到涂有粘合剂的基材上，直立的短纤维被粘附和固定，粘合剂树脂为 浸渍并硬化，随后磨损片材的一个表面，使得绝缘和导热纤维在片材厚度方向上以高密度穿透并排列。 结果，形成散热片，其中纤维从一个表面突出，同时使相对表面光滑，使得来自放热材料的热量可以被相对表面快速吸收并且被纤维突起快速耗散到空气中 表面。