Series resistive network

Details Series resistive network Series resistive network

1986-06-30

1987-12-15

James, Andrew J.

Metal treatment

Stock

Ferrous

357 60, 357 68, 29584, 29586, 148183, 437 51, 437170, H01L 2906, H01L 2348, H01L 2944, H01L 21479

Patent

active

047136804

ABSTRACT:
First and second resistors of a resistive network formed in a semiconductive substrate may be individually trimmed. The first and second resistive regions coupled at one end thereof have their other ends provided with metallic contacts. The resistive regions are disposed on the substrate such that current flowing from the first metallic contact to the second metallic contact through the first and second resistive regions causes the resistance of the first resistive region to be reduced. In contrast, current flowing from the second metallic contact to the first metallic contact through the first and second resistive regions causes the resistance of the second resistive region to be reduced.

REFERENCES:
patent: 3965453 (1976-06-01), Seidel et al.
patent: 4065971 (1978-01-01), Shimazoe et al.
patent: 4268848 (1981-05-01), Casey et al.
patent: 4562451 (1985-12-01), Fuse
patent: 4606781 (1986-08-01), Vyne
patent: 4652812 (1987-03-01), Gimpelson et al.

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