Patent · US Expired

Planar-doped valley field effect transistor (PDVFET)

US5151758A · kind A · utility

8Cited by
1References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 20, 1991
Grant dateSep 29, 1992
Priority date
Expiry dateFeb 20, 2011

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D62/228

Abstract

A planar doped valley field effect transistor (PDVFET), which positions more than one two-dimensional electron gas (2DEG) layer within a homo-structure (GaAs), in order to improve the FET's power output. The FET includes two 2DEG donor planes with an undoped GaAs layer therebetween, and a n-doped GaAs layer on the other side of each donor plane. The FET also includes a 2DEG acceptor plane below the n-doped GaAs layer, which is furthest from the contacts. This 2DEG plane combination forms a deep and wide valley in the FET's conduction band, which improves the FET's power output.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.