The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 1996
Filed:
May. 24, 1994
Guillermo L Romero, Phoenix, AZ (US);
Joe L Martinez, Jr, Phoenix, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A heat dissipation apparatus having a base structure (11) and fins (29, 43) and a method for making the heat dissipation apparatus. The base structure (11) is formed as a molded porous preform structure having a top surface (12), a bottom surface (13), and grooves (14) in the bottom surface (13). A layer of dielectric material (17) is placed on the top surface (12) and the porous base structure is infiltrated with a conductive material, thereby bonding the layer of dielectric material (17) to the base structure (11). The grooves (14) are coated with a conductive epoxy and the fins (29) are inserted into the grooves (14) to form a heat dissipation apparatus (30). Alternatively, the fins (43) are formed when the porous base structure is infiltrated with the conductive material, thereby forming a unitary heat dissipation apparatus (44).