Memory card having static electricity protection
First Claim
1. A memory card for use as a credit card and/or identification card and comprising:
- card support means;
integrated circuit means mounted on said card support means for storing information and including a plurality of access terminals;
a plurality of connection terminals provided on an exposed surface of said card support means and respectively connected to said access terminals on said integrated circuit means; and
unitary discharge pattern means provided on said exposed surface of said card support means and separated from each of said connection terminals by a discharge gap for discharging static electricity from said connection terminals to said discharge pattern means to prevent damage to said integrated circuit means.
1 Assignment
0 Petitions
Accused Products
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.
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Citations
13 Claims
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1. A memory card for use as a credit card and/or identification card and comprising:
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card support means; integrated circuit means mounted on said card support means for storing information and including a plurality of access terminals; a plurality of connection terminals provided on an exposed surface of said card support means and respectively connected to said access terminals on said integrated circuit means; and unitary discharge pattern means provided on said exposed surface of said card support means and separated from each of said connection terminals by a discharge gap for discharging static electricity from said connection terminals to said discharge pattern means to prevent damage to said integrated circuit means. - View Dependent Claims (13)
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2. A memory card comprising:
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card support means; integrated circuit means mounted on said card support means for storing information and including access terminal means; connection terminal means provided on an exposed surface of said card support means and connected to said access terminal means on said integrated circuit means; discharge means for discharging static electricity from said connection terminal means to prevent damage to said integrated circuit means; said discharge means including discharge pattern means provided on said exposed surface of said card support means and separated from said connection terminal means by at least one first discharge gap; and lead terminal means provided on a second non-exposed surface of said card support means and connected bewteen said connection terminal means and said integrated circuit means; and
in which said discharge means further includes second discharge pattern means provided on said second non-exposed surface of said card support means and separated from said lead terminal means by at least one second discharge gap to discharge static electricity from said lead terminal means and thereby discharge static electricity from said connection terminal means. - View Dependent Claims (3, 4)
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5. A memory card comprising:
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card support means; integrated circuit means mounted on said card support means for storing information and including access terminal means; connection terminal means provided on an exposed surface of said card support means and connected to said access terminal means on said integrated circuit means; discharge means for discharging static electricity from said connection terminal means to prevent damage to said integrated circuit means; and lead terminal means connected between said connection terminal means and said integrated circuit means, and in which said discharge means includes a first common ground discharge pattern for discharging static electricity from said connection terminal means and a second common ground discharge pattern for discharging static electricity from said connection terminal means through said lead terminal means. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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Specification