公开(公告)号：US20250112126A1

公开(公告)日：2025-04-03

申请号：US18478715

申请日：2023-09-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jie CHEN ,  Sylvester ANKAMAH-KUSI ,  Rajen Manicon MURUGAN ,  Yong XIE ,  Danny Lee BRIJA

IPC: H01L23/495 ,  H01L23/00 ,  H01L25/065 ,  H01L29/16 ,  H01L29/20 ,  H01L29/778

Abstract: In examples, a power device comprises a first wide bandgap semiconductor die including a high-side transistor; a second wide bandgap semiconductor die including a low-side transistor; and a conductive device coupled to the first and second wide bandgap semiconductor dies. The conductive device comprises a first layer including a first metal member having fingers at first and second ends of the first metal member, a second metal member having fingers interleaved with fingers of the first metal member at the first end, and a third metal member having fingers interleaved with fingers of the first metal member at the second end. The conductive device also comprises multiple layers in vertical alignment with the first layer, the first, second, and third metal members extending through the multiple layers. The conductive device also comprises a dielectric material covering the first layer and the multiple layers. The power device comprises a connection layer coupling the conductive device to each of the first and second wide bandgap semiconductor dies, with the connection layer including the first, second, and third metal members, and with the first metal member having connection layer fingers at the first and second ends of the first metal member. The second metal member has connection layer fingers interleaved with connection layer fingers of the first metal member at the first end, and the third metal member has connection layer fingers interleaved with connection layer fingers of the first metal member at the second end.

公开(公告)号：US20220399884A1

公开(公告)日：2022-12-15

申请号：US17348521

申请日：2021-06-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Cetin KAYA ,  Nathan Richard SCHEMM ,  Yong XIE

IPC: H03K17/082 ,  G01R1/20 ,  G05F1/46 ,  H03K5/24 ,  G01R19/165 ,  G01K7/02

Abstract: A short circuit detection circuit includes a current terminal, a sense resistor, an amplifier, and a resistor-capacitor ladder. The sense resistor is coupled to the current terminal, and is configured to develop a sense voltage proportional to a current through the current terminal. The amplifier is coupled to the sense resistor, and is configured to generate a scaled current proportional to the sense voltage. The resistor-capacitor ladder is coupled to the amplifier, and is configured to generate a measurement voltage that represents a surface temperature rise due to the current through the current terminal.