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:
Jul. 20, 2021
Filed:
Nov. 09, 2012
Crossbar, Inc., Santa Clara, CA (US);
George Minassian, Santa Clara, CA (US);
CROSSBAR, INC., Santa Clara, CA (US);
Abstract
An example secure circuit device includes a logic layer with a logic circuit, first and second memory layers, and connectors between the logic layer and the memory layers. The logic circuit executes logic operations in response to being in an unlocked state and does not execute logic operations in response to being in a locked state. The logic circuit is in the unlocked state in response to a security key being accessible and in the locked state when the security key is inaccessible. The first memory layer is disposed over a second memory layer with the first and second memory layers being disposed over the logic layer in a monolithic structure. The security key includes a first security key portion disposed in the first memory layer and a second security key portion disposed in the second memory layer.