Search International and National Patent Collections

1. (WO1999012204) DEVICE WITH SECURITY INTEGRATED CIRCUIT AND METHOD FOR MAKING SAME

Pub. No.:    WO/1999/012204    International Application No.:    PCT/FR1998/001761
Publication Date: Mar 11, 1999 International Filing Date: Aug 6, 1998
IPC: G06K 19/073
G06K 19/077
H01L 23/58
Applicants: SCHLUMBERGER SYSTEMES
BONVALOT, Béatrice
LEYDIER, Robert
Inventors: BONVALOT, Béatrice
LEYDIER, Robert
Title: DEVICE WITH SECURITY INTEGRATED CIRCUIT AND METHOD FOR MAKING SAME
Abstract:
The invention concerns a device with security integrated circuit comprising an active layer (10) including a semiconductor material and circuits integrated with said semiconductor material and having, on its active face (11), contact pads (15), and a complementary layer (20) as well as a method for making such a device. the invention is characterised in that the active layer (10) is sealed to the complementary layer (20) by an intermediate layer (30) applied on the surface of its active face (10), and the active layer (10) is thinned at its surface (12) opposite its active face (11). The invention is applicable, for instance, to portable objects with integrated circuits in card format.