A 28nm high-k metal-gate SRAM with Asynchronous Cross-Couple Read Assist (AC2RA) circuitry achieving 3x reduction on speed variation for single ended arrays
Robin Lee, Jung-Ping Yang, Chia-En Huang, Chih-Chieh Chiu, Wei-Shuo Kao, Hong-Chen Cheng, H. Liao, Jonathan Chang
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引用次数: 3
Abstract
Asynchronous Cross-Couple Read Assist (AC2RA) circuitry scheme was invented for single-ended sensing to minimize speed variation in 28nm HKMG process. It improves SRAM array speed variation by 63.3% which is adequate to cover 6σ variation. Access time is also boosted by faster sensing.
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