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:
May. 25, 2004
Filed:
Apr. 25, 2002
Applicant:
Inventors:
Daniel Gitlin, Palo Alto, CA (US);
James Karp, Saratoga, CA (US);
Jongheon Jeong, Palo Alto, CA (US);
Jan L. de Jong, Cupertino, CA (US);
Assignee:
Xilinx, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2/978 ;
U.S. Cl.
CPC ...
H01L 2/978 ;
Abstract
A transistor with ballast resistor formed between the transistor drain and the drain contact is formed by masking regions of the ballast resistor to increase resistivity and thus reduce required area. The invention achieves this without introducing any additional process or masking steps. Thus the invention allows a reduction in IC die size for the same ESD requirement or allows better ESD protection for a given die size.