Schottky diode - complementary transistor logic

Details Schottky diode - complementary transistor logic Schottky diode - complementary transistor logic

1975-06-19

1976-10-19

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307214, 307313, 307317A, H03K 1908, H03K 1912, H03K 1934, H03K 1936

Patent

active

039873102

ABSTRACT:
A logic circuit uses an input Schottky diode of a first threshold and a clamp Schottky diode of a second threshold in combination with a high speed NPN switching transistor to form a simple high speed logic element. The novel use of two Schottky diodes of different threshold voltages provides a logic gate with a lower logic swing amenable with higher speed operation. Further, the operation of the logic gate is independent of the temperature characteristics of the NPN switching transistor. A PNP current source provides the drive current and load current for the logic gate in a simple manner which uses minimum chip area.

REFERENCES:
patent: 3349297 (1967-10-01), Crowell et al.
patent: 3719797 (1973-03-01), Andrews, Jr. et al.
gani et al., "Logic Circuit with Dual--Metal Schottky Barrier Diodes," IBM Tech. Discl.; vol. 17, No. 10, p. 2856; 3/1975.
Gani et al., "Dual--Diode Logic Gate and Oscillation Clamping Structure"; IBM Tech. Discl. Bull., vol. 17, No. 2, p. 414; 7/1974.
Park, "Polarity Hold Latch with Schottky Diode and Circuits"; IBM Tech. Discl. Bull.; vol. 16, No. 5, pp. 1634-1635; 10/1973.

Affiliated with

Also associated with

Rating

Schottky diode - complementary transistor logic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Schottky diode - complementary transistor logic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Schottky diode - complementary transistor logic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-104580