Device for protecting electronic circuits against electrostatic charges
US4591945A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1984 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | Dec 17, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/73265
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An insulative data carrier of the credit card type having a protective device that protects electronic circuits, such as integrated circuits (3a, 3b), incorporated therein against electrostatic charges, said electronic circuits being mounted on an auxiliary electrically insulating carrier element (2, 4) disposed within a recess in an insulative carrier and having fixed input/output contacts (5) connected by an interconnecting net (6, 7) to input/output terminals (8) mounted on said auxiliary carrier element (4). The terminals (8) are accessible from the outside and are concentrated in at least one zone of the carrier element (4). At least one metal ring (20) carried by said carrier element (4) is mounted so as to circle said input/output terminals (8) concentrated in said zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.