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:
Mar. 27, 2012
Filed:
Jan. 29, 2009
Guo Jun Ren, San Jose, CA (US);
Guo Jun Ren, San Jose, CA (US);
Xilinx, Inc., San Jose, CA (US);
Abstract
A circuit for determining a process corner for a CMOS device of an integrated circuit is disclosed. The circuit comprises a CMOS monitoring circuit comprising an NMOS transistor and a PMOS transistor of the integrated circuit; reference circuit comprising elements for generating a reference voltage for an NMOS transistor and a reference voltage for a PMOS transistor; a first comparator for comparing a voltage generated by the NMOS transistor monitored by the CMOS monitoring circuit with the reference voltage for a NMOS transistor; and a second comparator for comparing a voltage generated by the PMOS transistor monitored by the CMOS monitoring circuit with the reference voltage for a PMOS transistor. A method for determining a process corner for CMOS devices of an integrated circuit is also disclosed.