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公开(公告)号：US11862421B1
公开(公告)日：2024-01-02
申请号：US17851592
申请日：2022-06-28
Applicant: UNITED MICROELECTRONICS CORP.
Inventor： Yang-Ling Wu , Chung-Yuan Lee , Chun-Liang Hu , Chih-Yung Kang , Shih-Hsiung Chiu
CPC classification number: H01H37/76 , H01H37/002
Abstract: A trim circuit for an e-fuse unit includes: a mirroring circuit for receiving an enable signal, when triggered by the enable signal, the mirroring circuit generating a driving voltage; and a driving transistor coupled to the mirroring circuit, in response to the driving voltage from the mirroring circuit, the driving transistor turning ON to generate a MOS current to an output node, wherein the output node is coupled to the e-fuse unit, and in response to the MOS current from the output node, the e-fuse unit is burned out.
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