Industrial Technology Research Institute

Kuan-Te Wu

Chih-Yen Lo

Jin-Fu Li

Ding-Ming Kwai

Jenn-Shiang Lai

Yun-Chao Yu

Chi-Chun Yang

A memory control circuit, coupled to a multi-channel memory, includes a plurality of channel controllers coupled to respective channel memories of the multi-channel memory, and a built-in self-test (BIST) circuit. The BIST circuit includes a BIST controller and a plurality of command index registers which store respective command indexes related to the channel controllers. The BIST controller receives notification from at least two channel controllers of the channel controllers, which indicates that the at least two channel controllers complete respective current test commands. When the BIST controller arbitrates, the BIST controller selects at least a channel controller from the at least two channel controllers which send the notification, and sends respective next test command(s) to the selected at least one channel controller based on the respective command index(es) of the selected at least one channel controller.

Memory control circuit and memory test method

A fault-tolerance through silicon via (TSV) interface is disposed in a three-dimensional random access memory (3-D RAM) with N memory layers and M data access path sets, and each of the memory layers containing K memory arrays, and each of the data access path sets containing a plurality of TSV paths connecting to the memory layers. The fault-tolerance TSV interface includes a path controlling unit and a processing unit. The path controlling unit detects and controls the data access path sets. When a fault occurs in any data access path set connecting to a memory layer, the processing unit provides at least two different fault-tolerance access configurations. In each of the fault-tolerance access configurations, &#x3bc; data access path sets are enabled to access all K memory arrays in the corresponding memory layer, where 0&#x3c;&#x3bc;&#x3c;M.

Fault-tolerance through silicon via interface and controlling method thereof

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Taipei, Taiwan

Kuan-Te Wu