Wenderoth, Lind & Ponack, L.L.P.
Apparatus for compensating for radiation resistance of semiconductor memory, method therefor, and electronic circuit
The purpose of the invention is to compensate for the radiation tolerance of a semiconductor memory. An apparatus (10) for compensating for radiation tolerance comprises: a voltage value acquisition unit (11) that acquires a data retention voltage value that is a maximum voltage value at which data is inverted when a power supply voltage of a semiconductor memory having a latch circuit is lowered; a correction value determination unit (12) that determines a voltage correction value on the basis of a difference between the data retention voltage value and a reference voltage value; and a voltage adjustment unit (13) that adjusts at least one among the power supply voltage and a substrate bias voltage by using the voltage correction value. The reference voltage value is set to be equal to or lower than the data retention voltage value that satisfies a required radiation tolerance.
MITSUBISHI HEAVY INDUSTRIES, LTD.
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Kazuyuki Masaki Daisuke Osamu Daisuke Yoshiharu
Hirose Kusano Matsuura Kawasaki Kobayashi Mori