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:
Apr. 19, 1977
Filed:
Jun. 06, 1975
Raymond George McCready, South Bend, IN (US);
Philip Eugene Eggers, Worthington, OH (US);
Sundstrand Corporation, Rockford, IL (US);
Abstract
In order to remove heat from integrated circuit modules a layered aluminum heat transfer structure is secured to the upper portion of a circuit board. The heat transfer structure includes a number of heat pipes for transferring heat to a condenser region. Each heat pipe is composed of a central vapor channel with a number of parallel capillary channels, each of which is open on one side to the vapor channel thereby serving as the wick of the heat pipe, running the length of the circuit board to a condenser region. There is one heat pipe for each row of integrated circuit modules wherein the modules are placed on the upper portion of the heat transfer structure and secured by means of terminal pins that run through the structure to the circuit board. The heat from the circuit modules vaporizes a working fluid in the capillaries and the vapor, in turn, travels in the vapor channel to a condenser region to be cooled and condensed by a cooling medium over this region.