Integrated circuit interconnection structure having precision te

Details Integrated circuit interconnection structure having precision te Integrated circuit interconnection structure having precision te

1977-12-30

1980-10-14

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307237, 333 22R, 307303, H03K 508, H01P 126

Patent

active

042283698

ABSTRACT:
A small variable resistor is used as a precision terminating resistor in an integrated circuit interconnection structure. The structure involves the use of a driver circuit connected to and driving a plurality of loads which are connected to a transmission line. The transmission line is terminated by the precision variable terminating resistor. The last load in the series of loads is located in the integrated circuit chip which has the variable terminating resistor. The absolute value of the variable resistor is difficult to control. The absolute value of any conventional integrated resistor is hard to control in manufacturing. However, by making the value of the resistance proportional to a voltage which itself is proportional to a deviation from a reference voltage, it is possible to obtain a much more precise value of resistance.

REFERENCES:
patent: 3281721 (1966-10-01), Clark
patent: 3581244 (1971-05-01), Smith
patent: 3828281 (1974-08-01), Chambers, Jr.
patent: 4015147 (1977-03-01), Davidson et al.
Dachtera, "Schottky Diode Line Terminator", IBM Tech. Discl. Bull.; vol. 12, No. 11, 4/70, p. 1861.

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