公开(公告)号：US20230298946A1

公开(公告)日：2023-09-21

申请号：US18148719

申请日：2022-12-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Abbas Ali ,  Rajni J. Aggarwal ,  Steven J Adler

IPC: H01L21/8249 ,  H01L27/06 ,  H01L29/66 ,  H01L21/763

CPC classification number: H01L21/8249 ,  H01L27/0623 ,  H01L29/66242 ,  H01L21/763

Abstract: An integrated circuit includes a bipolar transistor extending into a [100] surface of a semiconductor substrate having a crystalline lattice. A deep trench surrounds the bipolar transistor and has a path having a plurality of sides. At least one side extends in a direction parallel to a axis of the crystalline lattice.