公开(公告)号：US20210063655A1

公开(公告)日：2021-03-04

申请号：US16559979

申请日：2019-09-04

Applicant: GLOBALFOUNDRIES Inc. ,  KHALIFA UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Sujith Chandran ,  Marcus Dahlem ,  Ajey Poovannummoottil Jacob ,  Yusheng Bian ,  Bruna Paredes ,  Jaime Viegas

IPC: G02B6/42 ,  G02B6/293

Abstract: Structures for a wavelength-division multiplexing filter and methods of fabricating a structure for a wavelength-division multiplexing filter. The structure includes a first waveguide core, a second waveguide core laterally spaced from the first waveguide core, and a ring resonator arranged in a vertical direction over the first waveguide core and the second waveguide core. The ring resonator is also arranged in a lateral direction between the first waveguide core and the second waveguide core. The first and second waveguide cores are composed of a semiconductor material, such as single-crystal silicon, and the ring resonator is composed of a dielectric material, such as silicon nitride.

公开(公告)号：US10557989B1

公开(公告)日：2020-02-11

申请号：US16194902

申请日：2018-11-19

Applicant: GLOBALFOUNDRIES INC.

Inventor： Ajey Poovannummoottil Jacob ,  Marcus V. S. Dahlem ,  Humaira Zafar ,  Anatol Khilo ,  Sujith Chandran

IPC: G02B6/10

Abstract: The present disclosure relates to semiconductor structures and, more particularly, to a slot assisted grating based transverse magnetic (TM) pass polarizer and methods of manufacture. The structure includes: a waveguide strip composed of a first type of material and having openings along its length which are positioned to reflect/scatter a propagating electromagnetic waves; and grating fin structures on one or both sides of the waveguide strip which are positioned and structured to reflect/scatter the propagating electromagnetic waves.