Thus, the preparation of the organic field-effect transistor with mixed-contact electrodes is finished.

于是，混合接触型电极的有机场效晶体管制作完成。

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The very first transistor was the point-contact transistor, and that was Bardeen and Brattain.

NPR: Electronics Pioneer William Shockley's Legacy

The oldest ancestor of the point-contact transistor was the crystal detector, used in early wireless sets.

ECONOMIST: The middle age of the transistor

To create the point-contact transistor, Shockley's team modified the cat's whisker by placing two fine metal wires close together on the surface of a germanium crystal, turning it from a diode into a triode.

ECONOMIST: The middle age of the transistor