Patent · US Expired

Junction field effect transistor

US4215356A · kind A · utility

6Cited by
1References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 19, 1978
Grant dateJul 29, 1980
Priority date
Expiry dateApr 19, 1998

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10D62/357

Abstract

An N.sup.- semiconductor layer is epitaxially grown on an N.sup.+ semiconductor substrate serving as a drain region and overlaid with an N type epitaxial layer. Two opposite P.sup.+ gate regions are disposed in the surface portion of the N layer to define a channel region between them, and an N.sup.+ source region is located above the channel region. That portion of the N layer located between each gate region and the N.sup.- layer has a thickness not smaller than one-half of the channel width of the channel region.

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