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:
Jun. 30, 2026
Filed:
Sep. 16, 2024
Rohm Co., Ltd., Kyoto, JP;
Makoto Sada, Kyoto, JP;
Katsuaki Yamada, Kyoto, JP;
Shuntaro Takahashi, Kyoto, JP;
Toru Takuma, Kyoto, JP;
Naoki Takahashi, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
The present disclosure provides a semiconductor device. The semiconductor device includes: a semiconductor substrate; a well, formed in the semiconductor substrate; an output terminal, electrically connected to the semiconductor substrate; a ground terminal, configured to receive a ground voltage; a detection signal generating circuit, configured to generate a negative current detection signal when an output voltage present at the output terminal is detected to be less than the ground voltage; and a control circuit, configured to apply the ground voltage or the output voltage to the well in response to the negative current detection signal. The detection signal generating circuit includes: a comparator, configured to generate the negative current detection signal by comparing an output detection voltage with the ground voltage or the threshold voltage; a bias circuit, configured to switch between applying the output voltage or a bias voltage as the output detection voltage; and a clamp circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile