Heat Radiation Sheet And Method For Manufacturing Of The Same

a radiation sheet and heat radiation technology, applied in the field of heat radiation sheets, can solve the problems of shortening the life of electronic devices, deteriorating display quality of display devices, malfunction and performance degradation, etc., and achieves the effects of improving interlaminar adhesion of graphite sheets, superior heat dissipation characteristics, and improving bending characteristics

Active Publication Date: 2018-05-03
SHINWHA INTERTEK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a heat radiation sheet with improved heat dissipation and bending characteristics. The sheet uses a roll-to-roll process, simplifies manufacturing and reduces costs. This improves the reliability of the heat radiation sheet and makes it more durable.

Problems solved by technology

Heat generated by electronic parts may shorten the lifetime of electronic devices and cause malfunction and performance degradation.
In particular, in the case of a display device having a light source that generates a large amount of heat, the accumulated heat is a major cause of deterioration of the display quality of the display device.

Method used

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  • Heat Radiation Sheet And Method For Manufacturing Of The Same
  • Heat Radiation Sheet And Method For Manufacturing Of The Same
  • Heat Radiation Sheet And Method For Manufacturing Of The Same

Examples

Experimental program
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example

[0104]A heat radiation sheet was manufactured using a 9 μm-thick copper thin film as first and second protective layers and a 17 μm-thick graphite film as a heat radiation member. Each through hole of the heat radiation sheet had a diameter of 4 mm, a horizontal distance between the through holes was 20 mm, and a vertical distance between the through holes was 10 mm. FIG. 14 is a planar photograph of the heat radiation sheet manufactured according to Example and then cut into a size of 130 mm×25 mm.

experimental example

[0105]After a lower protective layer (e.g., the first protective layer of FIG. 1) of the heat radiation sheet manufactured according to Example was removed, a lowermost adhesive layer (e.g., the first adhesive member of FIG. 1) of the heat radiation sheet was attached to a stainless steel substrate(SUS304). Then, at room temperature, a horizontal end of the stainless steel substrate was pulled to one side, and at the same time, a corresponding horizontal end of the heat radiation sheet was pulled to the other side to peel off the heat radiation sheet. In this way, a 180-degree peel strength test was conducted, and the results are illustrated in FIG. 15. Here, the peeling speed was 300 mm / min.

[0106]In FIG. 15, the horizontal axis indicates relative position in the heat radiation sheet in a horizontal direction, and the vertical axis indicates peel strength at each position in the heat radiation sheet. Referring to FIG. 15, the peel strength is about 1500 gf / 25 mm at a 10 mm position ...

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Abstract

Provided are heat radiation sheet and method of manufacturing the same. The heat radiation sheet comprising: a first protective layer; a first adhesive member which is disposed on the first protective layer and has one or more through holes; a support member which is disposed on the first adhesive member and has one or more through holes; a second adhesive member which is disposed on the support member and has one or more through holes; a heat radiation member which is disposed on the second adhesive member and has one or more through holes; and a third adhesive member which is disposed on the heat radiation member and comprises a base portion contacting a first surface of the heat radiation member and protrusions protruding from the base portion and inserted into the through holes of the heat radiation member, the through holes of the second adhesive member, the through holes of the support member and the through holes of the first adhesive member, wherein the protrusions of the third adhesive member are at least partially coupled to the first protective layer.

Description

[0001]This application claims priority to Korean Patent Application No. 10-2016-0142797, filed on Oct. 31, 2016, in the Korean Intellectual Property Office, and all the benefits accruing therefrom under 35 U.S.C. § 119, the disclosure of which in its entirety is incorporated by reference.BACKGROUND1. Field[0002]The present inventive concept relates to a heat radiation sheet and a method of manufacturing the same.2. Description of the Related Art[0003]Heat may be generated in an electronic device by electronic parts such as wirings, terminals, and chips. Heat generated by electronic parts may shorten the lifetime of electronic devices and cause malfunction and performance degradation. In particular, in the case of a display device having a light source that generates a large amount of heat, the accumulated heat is a major cause of deterioration of the display quality of the display device.[0004]As electronic devices such as display devices and portable terminals become more sophistic...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H05K7/20
CPCH05K7/20963H01L23/36B21D53/04H05K7/2039H01L23/3677H01L23/373H01L23/3735B32B7/06B32B37/0053H05K1/0206H05K7/20472B32B2307/302F28F13/18
InventorYOON, SUNG CHULAHN, CHEOL HEUNGKIM, DONG HYUNKIM, HAK-SOOWOO, SU-HANGO, JINCHOI, WON JAEPARK, DAE-BOK
OwnerSHINWHA INTERTEK