Registers – Records – Conductive
Patent
1983-09-01
1985-07-30
Trafton, David L.
Registers
Records
Conductive
361212, G06K 1906
Patent
active
045324190
ABSTRACT:
A memory card includes a card support formed by two plastic boards; a printed circuit board mounted on the card support; an integrated circuit mounted on the printed circuit board and including a memory for storing information, a central processing unit for accessing the information, and access terminals connected to the memory and central processing unit for accessing the information from the memory; a plurality of connection terminals provided on an exposed surface of the printed circuit board; a common ground discharge pattern provided on the exposed surface of the printed circuit board and separated from the connection terminals by first discharge gaps; a plurality of lead terminals provided on a non-exposed surface of the printed circuit board and connected between respective ones of the connection terminals and respective ones of the access terminals of the integrated circuit; a second discharge pattern formed on the non-exposed surface and separated from the lead terminals by second discharge gaps such that undesirable static electricity supplied to the connection terminals on the exposed surface is discharged to the respective discharge patterns through the first and second discharge gaps.
REFERENCES:
patent: 3702464 (1972-11-01), Castrucci
patent: 4322777 (1982-03-01), Ueta et al.
Sinderbrand Alvin
Sony Corporation
Trafton David L.
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