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.
Patent No.:
Date of Patent:
Mar. 28, 1978
Filed:
Dec. 09, 1975
Applicant:
Inventor:
Takao Nakano, Itami, JA;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; G11C / ;
U.S. Cl.
CPC ...
365154 ; 307238 ; 357 35 ; 357 36 ; 357 44 ; 357 45 ; 357 46 ; 365174 ;
Abstract
The disclosed semiconductor memory device has a multiplicity of memory cells disposed in rows and columns. Each memory cell includes two transistors extending in the thickness direction of the device for storing and interconnected into a flip-flop, two lateral transistors for performing the reading-out and writing-in operations respectively and two lateral transistors for addressing. Each of the lateral transistors includes an L-shaped emitter opposed to the base and collector of the associated thickness direction transistor lengthwise of the semiconductor substrate involved and also in the direction of thickness thereof.