Artificial graphite heat dissipation substrate and production method thereof

Disclosed is a production method for an artificial graphite heat dissipation substrate, which includes the following steps: applying a pressure of 0.1 kg/cm2 or less to a sheet-like polymer substrate and using a gradual temperature-rising means to obtain a condensed carbonized film in a noble gas at...

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Bibliographic Details
Main Authors LI, HONG-YUAN, XIAO, LONG-DA, WENG, MING-SHENG, ZENG, ZHE-LV
Format Patent
LanguageChinese
English
Published 16.03.2014
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS THEREOF
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INORGANIC CHEMISTRY
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
SEMICONDUCTOR DEVICES
TRANSPORTING
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Summary:Disclosed is a production method for an artificial graphite heat dissipation substrate, which includes the following steps: applying a pressure of 0.1 kg/cm2 or less to a sheet-like polymer substrate and using a gradual temperature-rising means to obtain a condensed carbonized film in a noble gas atmosphere; gradually heating the condensed carbonized film to obtain a graphite film consisting of multi-layered graphene; laminating a plurality of graphite films along a lamination direction; and using a predetermined pressure to compress and fix said graphite films at the lamination direction. Compared with the current production method, the production method according to the present invention can simplify the process, lower production costs and has a synergistic effect of easy processing. Furthermore, the artificial graphite heat dissipation substrate produced by this invention has excellent effect of heat conductivity.
Bibliography:Application Number: TW20120133288