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. 30, 1996
Filed:
Jan. 04, 1995
Applicant:
Inventor:
Trace L Boyd, San Jose, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165 801 ; 118724 ;
Abstract
A clampless heat exchange station for a semiconductor wafer for use in a vacuum chamber, at pressures from 2 Torr to 30 Torr using commercial grade inert gas. The heat exchange chuck has apertures therethrough in the region where the wafer is to be mounted to serve as a miniature plenum gas to provide equal pressure along the bottom and top sides of the wafer. This configuration avoids chipping and particle deposition and provides improved heat transfer rate and wafer temperature uniformity.