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    BEOL NEM Relay-Based Inductorless DC-DC Converters

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    ISCAS2020 Final w Author Info.pdf
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    Type
    Conference Paper
    Authors
    Li, Ren cc
    Azhigulov, Dias
    Allehyani, Ahmed
    Fariborzi, Hossein cc
    KAUST Department
    Electrical Engineering Program
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Date
    2020
    Permanent link to this record
    http://hdl.handle.net/10754/660939
    
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    Abstract
    In the past few years, Back-End-of-Line (BEOL) Nano-electromechanical (NEM) relays have emerged as promising switching devices for the beyond-CMOS era, due to their zeroleakage current property, and the compatibility to CMOS fabrication processes. Though the mechanical movement causes the relays to be inherently slower than transistors, the metallic contact interface untethers the limitation on gate-to-drain voltage,which makes the relays capable of handling higher voltages. In thiswork, we propose novel designs for BEOL NEM relay-based inductorless DC-DC converters for on-chip voltage conversions. The design, implementation, and analysis of buck (step-down) and boost (step-up) converters are shown. Both converters consist of only four NEM relays, respectively. By utilizing the charge pump topology in a switched-capacitor configuration, the relay converters exhibit lower output ripple and higher efficiency compared to their CMOS counterparts. This is particularly valuable for DC-DC voltage conversions in the Internet of Things chips, where the converter switching frequency is moderate, while the demands for efficiency, area saving, and on-chip integration are high
    Publisher
    IEEE
    Conference/Event name
    The IEEE International Symposium on Circuits and Systems (ISCAS) 2020
    Collections
    Conference Papers; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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