Crossbar array apparatuses based on compressed-truncated singular value decomposition (C-TSVD) and analog multiply-accumulate (MAC) operation methods using the same

    公开(公告)号:US12229660B2

    公开(公告)日:2025-02-18

    申请号:US17319679

    申请日:2021-05-13

    Abstract: A compressed-truncated singular value decomposition (C-TSVD) based crossbar array apparatus is provided. The C-TSVD based crossbar array apparatus may include an original crossbar array in an m×n matrix having row input lines and column output lines and including cells of a resistance memory device, or two partial crossbar arrays obtained by decomposing the original crossbar array based on C-TSVD, an analog to digital converter (ADC) that converts output values of column output lines of sub-arrays obtained through array partitioning, an adder that sums up results of the ADC to correspond to the column output lines, and a controller that controls application of the original crossbar array or the two partial crossbar arrays. Input values are input to the row input lines, a weight is multiplied by the input values and accumulated results are output as output values of the column output lines.

    CROSSBAR ARRAY APPARATUSES BASED ON COMPRESSED-TRUNCATED SINGULAR VALUE DECOMPOSITION (C- TSVD) AND ANALOG MULTIPLY-ACCUMULATE (MAC) OPERATION METHODS USING THE SAME

    公开(公告)号:US20220108159A1

    公开(公告)日:2022-04-07

    申请号:US17319679

    申请日:2021-05-13

    Abstract: A compressed-truncated singular value decomposition (C-TSVD) based crossbar array apparatus is provided. The C-TSVD based crossbar array apparatus may include an original crossbar array in an m×n matrix having row input lines and column output lines and including cells of a resistance memory device, or two partial crossbar arrays obtained by decomposing the original crossbar array based on C-TSVD, an analog to digital converter (ADC) that converts output values of column output lines of sub-arrays obtained through array partitioning, an adder that sums up results of the ADC to correspond to the column output lines, and a controller that controls application of the original crossbar array or the two partial crossbar arrays. Input values are input to the row input lines, a weight is multiplied by the input values and accumulated results are output as output values of the column output lines.

    Reticle fabrication method and semiconductor device fabrication method including the same

    公开(公告)号:US11294290B2

    公开(公告)日:2022-04-05

    申请号:US16911819

    申请日:2020-06-25

    Abstract: Disclosed are reticle fabrication methods and semiconductor device fabrication methods. The reticle fabrication method includes performing a photolithography process on a test substrate using a first reticle having first patterns, measuring the test substrate to obtain measured images, designing a second reticle having second patterns, redesigning the second reticle based on a margin of the photolithography process, and manufacturing the redesigned second reticle. Redesigning the second reticle includes obtaining sample images from the measured images when the first patterns are the same as the second patterns, obtaining contour images that have contours of sample patterns in the sample images, overlapping the contours to obtain a contour overlay value, and comparing the contour overlay value with a reference value to determine defects of the second patterns.

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