Patent · US Expired

Thermal neutron shielded integrated circuits

US6239479A · kind A · utility

10Cited by

4References

6Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Ming-Jang Hwang · Dallas, US
William R. McKee · Plano, US
Robert Baumann · Mannheim, DE

Key dates

Filing date	Apr 3, 1995
Grant date	May 29, 2001
Priority date	—
Expiry date	Apr 3, 2015

Classification

Technology area (CPC H)Electricity
CPC primaryH01L2924/3025
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

A thermal neutron shield (520) for integrated circuits (511-515) deters absorption of thermal neutrons by circuit constituents to form unstable isotopes with subsequent decay which generates bursts of charge which may upset of stored charge and create soft errors. The shielding may be either at the integrated circuit level (such as a layer on insulation or in the filler of plastic packaging material) or at the board level (such as a filler or film on a container wall).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.