The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 04, 2000

Filed:

Sep. 24, 1997
Applicant:
Inventors:

Mikio Mukai, Kanagawa, JP;

Yutaka Hayashi, Kanagawa, JP;

Yasutoshi Komatsu, Kanagawa, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
257390 ; 257133 ; 257134 ; 257256 ; 257272 ; 257287 ;
Abstract

A semiconductor memory cell includes a read-out transistor of a first conductivity type which has source/drain regions constituted by a second conductive region and a third semiconducting region, a channel forming region constituted by a surface region of a second semiconducting region, and a conductive gate formed on a barrier layer; a switching transistor of a second conductivity type which has source/drain regions constituted by a first conductive region and the second semiconducting region, a channel forming region constituted by a surface region of a first semiconducting region, and a conductive gate formed on a barrier layer; and a current controlling junction-field-effect transistor of a first conductivity type which has gate regions constituted by a third conductive region and a portion of the second semiconducting region, a channel region constituted by a portion of the third semiconducting region, and one source/drain region extended from one end of the channel region, being constituted by a portion of the third semiconducting region, and another source/drain region extended from the other end of the channel region, being constituted by a portion of the third semiconducting region.


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