Super-digital (SD) flash card with asymmetric circuit board and mechanical switch
US7476105B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2007 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Aug 29, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/1527
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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 external 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. Dividers between openings in the upper case that expose the SD contact pads also 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. A user-slidable switch may be slanted to compensate for the PCB slant. The PCB may have a flex section to facilitate the slant without a slanted switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.