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Kioxia Assigned Three Patents

Semiconductor memory, storage, and IC

Semiconductor memory
Kioxia Corporation, Tokyo, Japan , has been assigned a patent (10,861,560) developed by Kodama, Takuyo, Sagamihara Kanagawa, Japan, for a semiconductor memory device.

The abstract of the patent published by the U.S. Patent and Trademark Office states: According to one embodiment, a semiconductor memory device includes a first memory cell, a first word line coupled to the first memory cell, a first sense amplifier including a first transistor, a first bit line which couples the first memory cell to the first transistor, and a first driver configured to supply a first control signal to a gate of the first transistor. The first driver includes a first circuit configured to compare the first control signal and a second control signal to generate a third control signal based on a comparison result.

The patent application was filed on December 17, 2019 (16/718,032).

Semiconductor storage
Kioxia Corporation, Minato-ku, J
apan, has been assigned a patent (10,861,557) developed by Kondo, Shigeo, Yokohama, Japan, for a semiconductor storage apparatus.

The abstract of the patent published by the U.S. Patent and Trademark Office states: A semiconductor storage apparatus includes: a memory cell array provided with memory cells, a word line connected to each gate of the memory cells, bit lines connected respectively to ends of the memory cells, and a control circuit. The control circuit controls a word line driver and a sense amplifier circuit to perform a first programming pass for programming data of states each of which has a first threshold distribution width to the memory cells and a second programming pass for programming data of the states each of which has a second threshold distribution width narrower than the first threshold distribution width to the memory cells, the second programming pass being performed after the first programming pass, and the first programming pass includes at least one first verify operation and one or more additional program operations.

The patent application was filed on December 12, 2019 (16/712,178).

Semiconductor integrated circuit
Kioxia Corporation, Minato-ku, J
apan, has been assigned a patent (10,785,070) developed by Takada, Shuichi, Yokohama, Japan, for semiconductor integrated circuit and receiving apparatus.

The abstract of the patent published by the U.S. Patent and Trademark Office states: According to one embodiment, a semiconductor integrated circuit includes: an equalizer circuit, a decision circuit that decides a bit value of a data signal, a sampler unit including sampler circuits, the sampler circuits having different thresholds and electrically connected in parallel between the equalizer circuit and the decision circuit, a determination circuit that determines indexes indicating a degree of confidence of current output values from the sampler circuits based on the bit values of the data signals at different past timings, and an arithmetic circuit that computes scores for bit values that are candidates for a current data signal based on the determined indexes and current output values from the sampler circuits. The decision circuit selects one bit value from the candidate bit values using the scores.

The patent application was filed on February 11, 2020 (16/787,130).