Stock material or miscellaneous articles – Sheet including cover or casing – Complete cover or casing
Patent
1988-12-01
1990-07-24
Ryan, Patrick
Stock material or miscellaneous articles
Sheet including cover or casing
Complete cover or casing
428209, 428210, 428323, 428446, 428457, 428901, 174 522, 361397, B32B 302
Patent
active
049434640
ABSTRACT:
The disclosure relates to memory cards having an electronic component housed in a cavity. The electronic support has a first base made of silicon, with a small thickness (between 50 and 100 microns) and a thicker (between 200 and 300 microns) second base, which is deposited on the first base and is formed by a material which is harder than silicon, such as cobalt, vanadium, titanium or ceramic.
REFERENCES:
patent: 4661653 (1987-04-01), Aigo
Gloton Jean-Pierre
Peres Philippe
Plottel Roland
Ryan Patrick
SGS-Thomson Microelectronics SA
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