公开(公告)号：US10483259B2

公开(公告)日：2019-11-19

申请号：US15942728

申请日：2018-04-02

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Ker Hsiao Huo ,  Fu-Chih Yang ,  Chun Lin Tsai ,  Yi-Min Chen ,  Chih-Yuan Chan

IPC: H01L29/06 ,  H01L29/417 ,  H01L29/423 ,  H01L27/02 ,  H01L27/06 ,  H01L21/8234 ,  H01L49/02 ,  H01L29/40 ,  H01L23/522

Abstract: Some embodiments relate to an integrated circuit. The integrated circuit includes a ring-shaped drain region having an inner edge and an outer edge. A channel region surrounds the ring-shaped drain region. A source region surrounds the channel region. The channel region separates the drain region from the source region. A gate electrode is arranged over the channel region and is separated from the channel region by a gate dielectric. An inner edge of the gate electrode is proximate to the drain region. A resistor structure is arranged over and spaced apart from an upper surface of the substrate. The resistor structure has a first end and a second end which are connected by a curved or polygonal path of resistive material. The first end is coupled to the ring-shaped drain. The resistor has an outer perimeter that is surrounded by the inner edge of the ring-shaped drain region.

公开(公告)号：US20190096988A1

公开(公告)日：2019-03-28

申请号：US15964636

申请日：2018-04-27

Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.

Inventor： Karthick Murukesan ,  Wen-Chih Chiang ,  Chun Lin Tsai ,  Ker-Hsiao Huo ,  Kuo-Ming Wu ,  Po-Chih Chen ,  Ru-Yi Su ,  Shiuan-Jeng Lin ,  Yi-Min Chen ,  Hung-Chou Lin ,  Yi-Cheng Chiu

IPC: H01L29/06 ,  H01L29/78 ,  H01L29/66

Abstract: Various embodiments of the present application are directed towards an integrated circuit (IC) in which a high voltage metal-oxide-semiconductor (HVMOS) device is integrated with a high voltage junction termination (HVJT) device. In some embodiments, a first drift well and a second drift well are in a substrate. The first and second drift wells border in a ring-shaped pattern and have a first doping type. A peripheral well is in the substrate and has a second doping type opposite the first doping type. The peripheral well surrounds and separates the first and second drift wells. A body well is in the substrate and has the second doping type. Further, the body well overlies the first drift well and is spaced from the peripheral well by the first drift well. A gate electrode overlies a junction between the first drift well and the body well.