Semiconductor device and field effect transistor

Active solid-state devices (e.g. – transistors – solid-state diode – Physical configuration of semiconductor – Mesa structure

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

257284, 257192, 257623, H01L 2906, H01L 2980, H01L 310328

Patent

active

059820233

ABSTRACT:
A dummy gate is removed together with an SiO.sub.2 film thereon by lift-off to form a reverse dummy-gate pattern with the SiO.sub.2 film. A photoresist pattern is formed to cover the reverse dummy-gate pattern and an SiN protection film therebetween, and a mesa pattern is formed by mesa etching. The photoresist pattern is etched so that the edge of the photoresist pattern is located between the edge of the mesa pattern and the edge of the reverse dummy-gate pattern and the exposed part of the SiN protection film is etched. The edge of the SiN protection film is thus located inside the edge of the mesa pattern.

REFERENCES:
patent: 4047196 (1977-09-01), White et al.
patent: 4545109 (1985-10-01), Reichert
patent: 4742379 (1988-05-01), Yamashita et al.
patent: 5258645 (1993-11-01), Sato
patent: 5313092 (1994-05-01), Tsuruta et al.
patent: 5712504 (1998-01-01), Yano et al.
A New Planar TMT Suitable For L-Band MMICs With RF Transmission And Reception Blocks Operating AT Vdd .ltoreq. 2 V; by Minoru SAWADA, et al.; The Japan Society of Applied Physics.
New Planar Two-Mode Channel Field-Effect Transistor Suitable For L-Band Microwave Monolithic Integrated Circuits With RF Transmission And Reception Blocks Operating At Vdd .ltoreq.2 V; by Minoru SAWADA, et al.; Jpn. J. Appl. Phys. vol. 34 (1995) pp. 1168-1171.
Excellent Thermally-Stable Epitaxial Channel For Implanted Planar-Type Hetero-Junction Field-Effect Transistor; by Shigeharu Matsushita, et al.; The Japan Society of Applied Physics.
Excellent Thermally Stable Epitaxial Channel For Implanted Planar-Type Heterojunction Field-Effect Transistors; by Shigeharu Matsushita, et al.; The Japan Society of Applied Physics.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Semiconductor device and field effect transistor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor device and field effect transistor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device and field effect transistor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1460292

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.