Method for identifying an apparatus or device utilizing a randomly produced characteristic thereof

US5890807A · kind A · utility

Assignee

• Deutsche ITT Industries, GmbH · DE

Inventors

• Gunter Igel · Teningen, DE
• Siegfried Heinrich · Fritzlar, DE

Key dates

• Filing date: Oct 22, 1996
• Grant date: Apr 6, 1999
• Expiry date: Oct 22, 2016

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2924/0002
• WIPO field: Semiconductors
• WIPO sector: Electrical engineering

Abstract

A method identifying components is disclosed. Measured values of a randomly produced property of the component are recorded. The measured values are biuniquely assigned to the component by means of a characteristic parameter and the measured values accessibly storing the measured values, or a unique code assigned thereto. Further, the characteristic parameter are accessibly stored.