- 专利标题: Apparatuses and methods for direct access hybrid testing
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申请号: US16590694申请日: 2019-10-02
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公开(公告)号: US10896738B1公开(公告)日: 2021-01-19
- 发明人: Chiaki Dono , Chikara Kondo , Roman A. Royer
- 申请人: MICRON TECHNOLOGY, INC.
- 申请人地址: US ID Boise
- 专利权人: MICRON TECHNOLOGY, INC.
- 当前专利权人: MICRON TECHNOLOGY, INC.
- 当前专利权人地址: US ID Boise
- 代理机构: Dorsey & Whitney LLP
- 主分类号: G11C29/00
- IPC分类号: G11C29/00 ; G11C29/44 ; G11C29/48 ; G11C29/30 ; G11C29/36 ; G11C29/12
摘要:
Embodiments of the disclosure are drawn to apparatuses, systems, and methods for direct access hybrid testing. A memory device, such as a high bandwidth memory (HBM) may include direct access terminals. During a testing procedure, test instructions may be provided to the memory through the direct access terminals. The test instructions include a data pointer which is associated with one of a plurality of test patterns pre-loaded in the memory and an address. The selected test pattern may be written to, and subsequently read from, the memory cells associated with the address. The read test pattern may be compared to the selected test pattern to generate result information. The test patterns may be loaded to the memory, and the result information may be read out from the memory, in an operational mode different than the operational mode in which the test instructions are provided.
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