Assertion: common transistor | /r/HasProperty | invented in 1940
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text: The magnetically sensitive transistor (also known as the spin transistor or spintronic transistor—named for spintronics, the technology which this development spawned), originally proposed in 1990 by Supriyo Datta and Biswajit Das, currently still being developed, is an improved design on the common transistor invented in the 1940s.