Patent ID: 6696643
Filing Date: 2004-02-24
Classification: H05K

Abstract:
An electronic apparatus provided with an electronic circuit substrate comprising:an electronic circuit substrate mounting a hear generating component, a case for protectively housing said electronic circuit substrate and provided with an opening for housing said electronic circuit substrate, and a cover for blocking said opening of said case wherein, said heat generating component is exposed to the atmosphere in the case, said electronic circuit substrate comprises a resin circuit board formed with a wiring pattern and a grounding pattern in an internal layer thereof, and a plurality of through holes formed directly below a portion where said heat generating component is mounted and connected with said grounding pattern, and said case comprises a heat dissipating protruding surface portion contacting an area where said through holes of a rear surface of said electronic circuit substrate are disposed, and is formed so as to ensure a space between portions of said case other than said protruding surface portion and said rear surface of said electronic circuit substrate for enabling mounting of low heat generating electrical/electronic components to said rear surface of said electronic circuit substrate.