Reconfigurable logical circuit using transistor having spin-dependent transmission characteristics

Abstract

The object of the present invention is to construct a nonvolatile reconfigurable logic circuit. This is a reconfigurable logic circuit using a CMOS structure of spin MOSFETs. By changing the transfer characteristics of each transistor by the magnetization states of Tr1, Tr2, Tr5, and Tr8 as spin-NOSFETs, "and" / "or" / "exclusive" / "and" / "or" / " Same as " / "1" / "0" full 2-input symmetric function. Since logic functions can be configured in a non-volatile manner with a small number of components, the chip area can be reduced, and high-speed and low-power consumption operation is expected.

Description

technical field [0001] The present invention relates to a logic circuit whose function can be reconfigured, and more specifically, relates to a transistor (hereinafter referred to as a transistor) using a ferromagnetic substance inside and having transfer characteristics related to the magnetization state of the ferromagnetic substance. A reconfigurable logic circuit called a "spin transistor"). Background technique [0002] In recent years, a logic circuit whose function can be reconfigured (reconfigurable or reprogrammable) by a user's program has attracted attention. For example, the field programmable logic array (Field Programmable Logic Array (FPGA)) (for example, refer to S.Trimberger, Proc.IEEE 81 (1993) 1030., S.Hauck, Proc. .IEEE 86(1998)625., and Minoru Sue: Programmable Logic Devices, Technical Research Report of the Society of Electronics, Information and Communication, Vol.101, No.633, (2002)17). In the past, FPGAs have been used for trial production of produ...

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Problems solved by technology

In addition, since the function cannot be stored non-volatilely, there is a problem in maintaining the non-volatileness of the logic function similarly to the LUT method

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