A 3-D optoelectronic integration methodology utilizing CMOS post-backend process

Zan Zhang; Beiju Huang; Zanyun Zhang; Chuantong Cheng; Xurui Mao; Hongda Chen

doi:10.1117/12.2071504

24 October 2014 A 3-D optoelectronic integration methodology utilizing CMOS post-backend process

Zan Zhang, Beiju Huang, Zanyun Zhang, Chuantong Cheng, Xurui Mao, Hongda Chen

Proceedings Volume 9270, Optoelectronic Devices and Integration V; 92701H (2014) https://doi.org/10.1117/12.2071504
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

The integration of optical devices and electronic integrated circuits (IC) is a main issue for optoelectronic convergence. In this work, a CMOS post-backend process flow is proposed to potentially achieve a 3-D monolithic optoelectronic integrated chip. The proposed integrated chip is composed of an IC die as electronic layer and a waveguide device layer as photonic layer above electronic layer. The photonic layer is fabricated by CMOS post-backend process with a temperature blow 450 ºC, which would do no harm to the performance of the CMOS ICs. We also fabricated Si3N4 mircoring add-drop filters on a bulk Si wafer. The cross-section of the waveguide is 400 nm × 1 μm, and the radius of microring is 30μm. Measured results match well with numerical simulations.

Citation Download Citation

Zan Zhang, Beiju Huang, Zanyun Zhang, Chuantong Cheng, Xurui Mao, and Hongda Chen "A 3-D optoelectronic integration methodology utilizing CMOS post-backend process", Proc. SPIE 9270, Optoelectronic Devices and Integration V, 92701H (24 October 2014); https://doi.org/10.1117/12.2071504

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