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US 12,190,951 B2Granted
Highly energy-efficient cam based on single FeFET and operating method thereof
AssigneeZhejiang University
InventorsXunzhao Yin, Jiahao Cai, Cheng Zhuo
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AssigneeZhejiang University
InventorsXunzhao Yin, Jiahao Cai, Cheng Zhuo
Estimating the term…
Disclosed in the present invention are a highly energy-efficient CAM based on a single FeFET and an operating method thereof, which relate to a design of an FeFET-based memory suitable for low power consumption and high performance. A brand-new design of a CAM cell based on the single FeFET is achieved by fully utilizing the storage characteristics of the FeFET, so that the number of transistors is saved, the search energy consumption is reduced, and the nonvolatility of data storage is obtained. The present invention utilizes a 2T-1FeFET structure, and combines the advantages of the FeFET and CMOS. Without reducing performance, only one FeFET is utilized to implement a less area overhead and a lower energy consumption compared with a traditional CMOS-based CAM, and non-volatility is achieved.
A highly energy-efficient content addressable memory (CAM) based on a single FeFET, wherein each CAM cell of the CAM is composed of 1 FeFET and 2 NMOS transistors (NMOSs), and the 2 NMOSs are divided into T1 and T2, a source of the FeFET is connected to a search line/SL, a gate of the FeFET is connected to a word line WL, a drain of the FeFET is connected to a drain of T1 and a gate D of T2, a source of T1 is connected to a search line SL, a gate of the T1 is connected to a control line CL, a drain of T2 is connected to a match line, and match lines of CAM cells in each row of an array are connected forming a match line ML for each respective row,
Dependencies are inferred from the claim text.