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Burn-in method for embedded multi media card, and test board using the same, and embedded multi media card tested by the same

A technology of card burn-in and flash memory card, which is applied in the field of burn-in test of embedded flash memory card, and can solve the problems such as inapplicability of temperature resistance test

Active Publication Date: 2013-05-01
SILICON MOTION INC (CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, figure 1 The traditional test architecture is not suitable for temperature resistance testing

Method used

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  • Burn-in method for embedded multi media card, and test board using the same, and embedded multi media card tested by the same
  • Burn-in method for embedded multi media card, and test board using the same, and embedded multi media card tested by the same
  • Burn-in method for embedded multi media card, and test board using the same, and embedded multi media card tested by the same

Examples

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Embodiment Construction

[0041] figure 2 It illustrates a test board 200 for the burn-in process of an embedded flash memory card according to an embodiment of the present invention. The test board 200 can be used for testing multiple embedded flash memory cards. For simplicity, only a single test suite (corresponding to an embedded flash card) is discussed below. A test kit may include a mount 202 and a wire 204 . An embedded flash memory card 206 is connected to the test board 200 through the mount 202 .

[0042] Please note that before the embedded flash memory card 206 is installed in the mounting base 202, it can be connected to a host to download the test program code and test data. Therefore, the embedded flash memory card 206 installed on the mounting base 202 already has test firmware for execution and test data required for the burn-in process.

[0043] The wire 204 electrically connects a command line CMD of the embedded flash memory card 206 to the ground terminal GND to operate the e...

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Abstract

A burn-in method for an embedded Multi Media Card (eMMC), and a test board using the same, and an eMMC tested by the same. The disclosed burn-in method comprises the steps as below: writing a test pattern to a flash memory of the eMMC; electrically connecting a command line of the eMMC to ground to operate the eMMC in a boot state; performing a burn-in procedure on the flash memory when the eMMC is in the boot state and the test pattern is recognized as being contained in the flash memory; and collecting a test report during the burn-in procedure, wherein the test report is stored in the flash memory.

Description

technical field [0001] The present invention relates to an embedded flash memory card (embedded Multi Media Card, eMMC), and in particular to a burn-in test of the embedded flash memory card. Background technique [0002] The multimedia memory card (MultiMediaCard, MMC) is based on an NAND flash memory technology. Generally speaking, a multimedia memory card is used as a storage medium of a portable device, which is convenient to move to a personal computer for access. For example, a digital camera can use a multimedia memory card to store image files. A user can copy photos to his or her computer through a card reader (eg, a multimedia memory card reader). [0003] Based on the specification of the multimedia memory card, an embedded storage solution integrates the interface of the multimedia memory card, the flash memory and the controller into the same package, named as embedded multi media card (eMMC). In order to ensure the reliability of the flash memory embedded in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C16/10G11C29/56
Inventor 张嘉芳欧旭斌
Owner SILICON MOTION INC (CN)