Patent ID: 11879932
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A system, comprising:
a memory that stores computer executable components; and
a processor, operably coupled to the memory, and that executes the computer executable components stored in the memory, wherein the computer executable components comprise:
an identification component, operatively coupled to the processor and to one or more test circuits, that:
analyzes the one or more test circuits operated at sub-threshold voltages;
generates a current-voltage characteristic curve characterizing the operation of the one or more test circuits, wherein a test circuit of the one or more test circuits is an integrated circuit and wherein generation of the current-voltage characteristic curve is resultant from receiving data, at the identification component, via receipt of an electrical signal in the test circuit; and
identifies whether at least one of the one or more test circuits is an aged circuit by analyzing a current-voltage characteristic curve for a distortion in a sub-threshold quiescent current signature of the aged circuit, and wherein the distortion is characterized by the formation of multiple peaks in the sub-threshold current measurement of the current-voltage characteristic curve;

a display physically coupled to the identification component and that:
generates, via a screen of the display, an electronic visual indicator of a location of the distortion on the current-voltage characteristic curve, wherein the electronic visual indicator is generated by the display and output, via the screen of the display, to a user of the system; and
identifies the one or more test circuits as an aged circuit without destructive inspection methods, wherein the aged circuit is determined to be a counterfeit or otherwise unacceptable circuit.