This thesis presents the design and implementation of a high-speed read-access STT MRAM. The proposed design includes a 2T1MTJ cell topology, along with two different read schemes: current-based and voltage-based. Compared to the conventional read scheme with 1T1MTJ cells, the proposed design is capable of reducing the loading on the read circuit to minimize the read access time. A complete STT MRAM test chip including the proposed and the conventional schemes was fabricated in 90nm CMOS technology. The 16kb test chip's measurement results confirm a read access time of 6ns and a write access time of 10ns. The read time is 25% faster than other works of similar array size published thus far, while the write time is able to match the fastest result.
| Identifer | oai:union.ndltd.org:TORONTO/oai:tspace.library.utoronto.ca:1807/29628 |
| Date | 25 August 2011 |
| Creators | Song, Hui William |
| Contributors | Sheikholeslami, Ali |
| Source Sets | University of Toronto |
| Language | en_ca |
| Detected Language | English |
| Type | Thesis |
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