| 摘要 |
Write transistors Q1W, Q2W, Q3W, Q4W are arranged in a line, and read transistors Q1R, Q2R, Q3R, Q4R are also arranged in a line. Wiring pads P11, P12, P13, P14 are arranged between the write and read transistors in a line parallel to both of the lines. Heat generated by a write operation in the write transistors does not significantly influence the read transistors in a read operation. The influences are exerted on the read transistors approximately uniformly, so that an offset voltage difference can be minimized in differential amplification.
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