Research/Patents/US 5446294
US 5446294

MICROWAVE HETEROJUNCTION BIPOLAR TRANSISTORS SUITABLE FOR LOW-POWER, LOW-NOISE AND HIGH-POWER APPLICATIONS AND METHOD FOR FABRICATING SAME

Assignee

TEXAS INSTRUMENTS INCORPORATED

Filed

Jul 31, 1991

Granted

Aug 29, 1995

Location

PLANO TX US

Abstract

Generally, and in one form of the invention, a microwave heterojunction bipolar transistor suitable for low-power, low-noise and high-power applications having an emitter 108, a base 126 and a collector 24 is disclosed, wherein the base 126 is composed of one or more islands 126 of semiconductor material. The one or more islands 126 are formed so that they do not cross any boundaries of the active area 60 of the transistor. Other devices, systems and methods are also disclosed.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 27, 1992

Rescinded

Jul 17, 1992

Duration

3 months

Inventor

  • 1BURHAN BAYRAKTAROGLU
Back to patent indexSource: USPTO 35 USC §181 secrecy order records