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:
Aug. 11, 2009
Filed:
May. 04, 2005
Applicant:
Maxim Ershov, San Jose, CA (US);
Inventor:
Maxim Ershov, San Jose, CA (US);
Assignee:
T-RAM Semiconductor, Inc., Milpitas, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/74 (2006.01);
U.S. Cl.
CPC ...
Abstract
In accordance with an embodiment of the present invention, a thyristor-based semiconductor memory device may comprise an array of thyristor-based memory formed in an SOI wafer. A supporting substrate may be formed with a density of dopants sufficient to assist delivery of a bias level to the backside of an insulating layer beneath a thyristor. Such conductivity within the substrate may allow reliable back-gate control for the gain of a component bipolar device of the thyristor.