Secure-digital (SD) flash card with slanted asymmetric circuit board
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United States of America Patent
Stats
-
May 19, 2009
Grant Date -
Jun 7, 2007
app pub date -
Oct 11, 2006
filing date -
Jan 6, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flash-memory device has a printed-circuit board assembly (PCBA) with a PCB with a flash-memory chip and a controller chip. The controller chip includes an input/output interface circuit to an external computer over a Secure-Digital (SD) interface, and a processing unit to read blocks of data from the flash-memory chip. The PCBA is encased inside an upper case and a lower case, with SD contact pads on the PCB that fit through contact openings in the upper case. Supporting end ribs under each of the SD contact pads and middle ribs support the PCB at a slanted angle to the centerline of the device. The PCB slants upward at the far end to allow more thickness for the chips mounted to the bottom surface of the PCB, and slants downward at the insertion end to position the SD contact pads near the centerline.
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