Patent · US Expired

Chip card

US5917705A · kind A · utility

6Cited by

0References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Josef Kirschbauer · Blaibach, DE
Erich Hopf · Neutraubling, DE
Günther Grönninger · Dietenhofen, DE
Jurgen Fischer · Backnang, DE
Gunter Didschies · Nürnberg, DE
Josef Mundigl · Duggendorf, DE
Michael Rogalli · Rottenburg am Neckar, DE

Key dates

Filing date	Oct 28, 1996
Grant date	Jun 29, 1999
Priority date	—
Expiry date	Oct 28, 2016

Classification

Technology area (CPC H)Electricity
CPC primaryH01L2224/48091
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A chip card includes a plastic card. A plastic body is disposed in the plastic card and a semiconductor chip is surrounded by the plastic body. Contact strips are electrically connected with the semiconductor chip and are connected to the plastic card. The contact strips have a flexible region near and outside of the plastic body and are advantageously parts of a lead frame. An adhesive which joins the contact strips to the plastic card has at least three layers including a middle layer of flexible material.

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