Invention Grant
- Patent Title: Apparatuses and methods for direct access hybrid testing
-
Application No.: US16590694Application Date: 2019-10-02
-
Publication No.: US10896738B1Publication Date: 2021-01-19
- Inventor: Chiaki Dono , Chikara Kondo , Roman A. Royer
- Applicant: MICRON TECHNOLOGY, INC.
- Applicant Address: US ID Boise
- Assignee: MICRON TECHNOLOGY, INC.
- Current Assignee: MICRON TECHNOLOGY, INC.
- Current Assignee Address: US ID Boise
- Agency: Dorsey & Whitney LLP
- Main IPC: G11C29/00
- IPC: G11C29/00 ; G11C29/44 ; G11C29/48 ; G11C29/30 ; G11C29/36 ; G11C29/12

Abstract:
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.
Information query