Dry-etch fabrication of reduced area InGaAs/InP DHBT devices for high speed circuit applications

Autor: Robert William Ryan, Y.C. Wang, M. A. Melendes, R. Pullela, A. Tate, Y.K. Chen, R. A. Hamm, Rose Fasano Kopf, J. Thevin
Rok vydání: 2000
Předmět:
Zdroj: Journal of Electronic Materials. 29:222-224
ISSN: 1543-186X
0361-5235
DOI: 10.1007/s11664-000-0146-9
Popis: We have fabricated reduced area InGaAs/InP DHBTs for high speed circuit applications. To produce the small dimensions required, a process involving both wet chemical and ECR plasma etching was developed. Optical emission spectroscopy was used for end-point detection during plasma etching. With this improved process, an ft of 170 and fmax of 200 GHz were achieved for 1.2 × 3 µm2 emitter size devices with a 500 A base.
Databáze: OpenAIRE