公开(公告)号：EP4300590A1

公开(公告)日：2024-01-03

申请号：EP22198916.3

申请日：2022-09-30

Applicant: GlobalFoundries U.S. Inc.

Inventor： Jain, Vibhor ,  Raghunathan, Uppili S. ,  Liu, Qizhi ,  Ngu, Yves T. ,  Raman, Ajay ,  Krishnasamy, Rajendran ,  Joseph, Alvin J.

IPC: H01L29/732 ,  H01L21/331 ,  H01L29/08 ,  H01L29/06

Abstract: A structure comprising: a collector; a base over the collector; and an emitter over the base, the emitter comprising at least one stepped feature over the base.

公开(公告)号：EP4235242A1

公开(公告)日：2023-08-30

申请号：EP22199632.5

申请日：2022-10-04

Applicant: GlobalFoundries U.S. Inc.

Inventor： Bian, Yusheng ,  Polomoff, Nicholas ,  Donegan, Keith ,  Liu, Qizhi ,  Shank, Steven M.

IPC: G02B6/42 ,  G02B6/122

Abstract: Structures including an edge coupler, and methods of fabricating a structure that includes an edge coupler. The structure (10) includes an edge coupler having a waveguide core (12) with an end surface (14) and a longitudinal axis (18). The end surface (14) defines a plane tilted in a first direction at a first acute angle relative to the longitudinal axis (18) and tilted in a second direction at a second acute angle relative to the longitudinal axis (18). The second direction differs from the first direction.