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.

Date of Patent:
Oct. 13, 2020

Filed:

Jun. 07, 2018
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

James Strom, Rochester, MN (US);

Grant P. Kesselring, Rochester, MN (US);

David M. Friend, Stewartville, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/08 (2006.01); H03L 7/093 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03L 7/0802 (2013.01); H03F 3/45475 (2013.01); H03L 7/093 (2013.01); H03F 2203/45116 (2013.01);
Abstract

Using a burn-in operational amplifier (opamp) for a phased locked loop (PLL) regulator including activating a voltage stress mode for an integrated circuit comprising a PLL regulator for a PLL, wherein the PLL regulator comprises thin-oxide transistors, and wherein activating the voltage stress mode for the integrated circuit comprises applying an elevated voltage to an input of the PLL regulator; and enabling, during the voltage stress mode, a burn-in opamp coupled to the input of the PLL regulator, wherein enabling the burn-in opamp bias the input of the PLL regulator to a voltage lower than the elevated voltage.


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