Programmable complementary transistors

A logic gate comprising

• a first field effect transistor and a first variable resistance device connected in parallel,
• a second field effect transistor and a second variable resistance device connected in parallel,
• a third field effect transistor and a third variable resistance device serially connected,
• a fourth field effect transistor and a fourth variable resistance device serially connected,
• means connecting said third field effect transistor and said third variable resistance in parallel with said fourth field effect transistor and said fourth variable resistance thereby forming parallel circuitry,
• means serially connecting said first field effect transistor, said second field effect transistor, and said parallel circuitry between first and second voltage potentials,
• means for applying a first input to said first and third field effect transistors, said first and second field effect transistors being complementary,
• means for applying a second input to said second and fourth field effect transistors, said second and fourth transistors being complementary, and
• means for obtaining an output at the connection between said second field effect transistor and said parallel circuitry in response to said first and second inputs,
• said first, second, third, and fourth variable resistance devices having a high resistance state and a low resistance state for selectively enabling said first input and said second input.