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:
Sep. 01, 1998
Filed:
Jul. 18, 1996
Applicant:
Inventor:
Timothy Scott Dyer, Tempe, AZ (US);
Assignee:
Accord SEG, Inc., Tempe, AZ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
118728 ; 1187 / ; 118500 ; 156345 ;
Abstract
Premature equipment failure of susceptors used during plasma processing of semiconductor wafers is avoided by making the holes, characteristic of susceptors, such that the hole diameter is less that the susceptor thickness. In one embodiment, the susceptor includes a pattern of support struts which permits the planar top plate of the susceptor to be made quite thin and yet permits the diameter-to-thickness requirement to be met by aligning the pattern of holes with the pattern of support struts and having the holes penetrate the struts.