Patent · US Expired

Method of making junction field effect transistor

US4602419A · kind A · utility

10Cited by
4References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 9, 1984
Grant dateJul 29, 1986
Priority date
Expiry dateJan 9, 2004

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S438/965

Abstract

A junction field effect transistor has a substrate forming a junction with a layer of semiconductor material which has a gate, a source and a drain therein. The thickness of the n-type layer underlying the source is substantially greater than that underlying the gate (for example the ratio of n-thickness below the gate to that below the source is 1 to 2.53) in order to reduce the parasitic resistance as compared to conventional JFETs.

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