Substrate for semiconductr device

Active solid-state devices (e.g. – transistors – solid-state diode – Regenerative type switching device – With resistive region connecting separate sections of device

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Details

257358, 257363, 257379, 257536, 257904, H01L 2974, H01L 31111, H01L 2362, H01L 2711

Patent

active

055302700

ABSTRACT:
A semiconductor substrate includes a plurality of parallel resistor films connected between a pair of conductor strips. The resistor films and conductor strips are coated with a protective coat. The resistor films are cut one by one by laser trimming to adjust the total resistance value of the plurality of parallel resistor films. The protective coat on the uncut resistors remains unremoved.

REFERENCES:
patent: 4288829 (1981-09-01), Tango
"Modular Resistor Array" IBM Technical Disclosure Bulletin vol. 13 No. 5 Oct. 1970 Bross et al.

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