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:
Aug. 15, 2000
Filed:
Dec. 23, 1997
Youn-Cherl Shin, Kyungki-do, KR;
Dae-Jeong Kim, Seoul, KR;
LG Semicon Co., Ltd., Choongcheongbuk-do, KR;
Abstract
An improved substrate voltage (VBB) generation circuit is disclosed. The circuit reduces variations in VBB (.DELTA.VBB) caused by variations (.DELTA.VCC) in a system voltage (VCC) by making a threshold voltage (Vt) of a logic element, e.g., an inverter of in a buffer, more sensitive to .DELTA.VCC. In contrast, the conventional art had attempted to reduce .DELTA.VBB by making the Vt of the logic element less sensitive to .DELTA.VCC. Two features of the improved logic element of the circuit contribute to the reduction of .DELTA.VBB. These features are: adopting an opposite channel ratio arrangement versus the conventional art; and incorporating additional active resistors.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile