Time temperature monitoring system

US10504807B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Taryn J. Davis · Beacon, US
• Jonathan Fry · Fishkill, US
• Terence L. Kane · Beacon, US
• Christopher F. Klabes · Poughkeepsie, US
• Andrew J. Martin · Carmel, US
• Vincent J. McGahay · Poughkeepsie, US
• Kathryn E. Schlichting · Bloomington, US
• Melissa A. Smith · Wappingers Falls, US

Key dates

• Filing date: Jul 24, 2018
• Grant date: Dec 10, 2019
• Expiry date: Jul 24, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01K3/10
• WIPO field: Semiconductors
• WIPO sector: Electrical engineering

Abstract

A time temperature monitoring system and method for use with a microchip or similar structure. A disclosed system includes: an active region; a dopant source located proximate the active region; an activation system for activating a diffusion of the dopant source into the active region; and a set of electrodes embedded in the active region of the substrate, wherein the electrodes are configured to detect the diffusion in the active region at varying distances from the dopant source to provide time temperature information.