Method for making connections between contacts

Details Method for making connections between contacts Method for making connections between contacts

1977-06-08

1979-06-12

Esposito, Michael F.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427 53, 427 96, 427 99, 427259, 427264, 427272, 340166R, 29574, 96 362, 156659, B05D 512, B41M 308, H05K 104, H05K 300

Patent

active

041580729

ABSTRACT:
A technique for providing interconnections between pairs of contact points associated with a conductive line pattern by the use of an interconnection defining tool which is selectively alignable with respect to the conductive line. The conductive line pattern comprises at least one conductive line which is either continuous or shows interruptions, and from which lines branch off to the contact points. The tool is adapted to the conductive line and consists of a row of elements, the distance between which is dimensionally related to the distance between the branch-offs. After the tool has been adjusted to the conductive line in accordance with the respective connections, the elements of the tool are used for interrupting or connecting the conductive line at predetermined positions. If a radiation mask is used as a tool, the elements of the tool consist of areas which differ from their surroundings in their radiation transparency, and the conductive line pattern may exist as a latent image on a substrate covered by a photoresist layer sensitive to radiation. The invention serves to provide, in a circuit arrangement with redundant elements, a single circuit, the final wiring of which excludes one or several defective redundant circuit elements.

REFERENCES:
patent: 3423822 (1969-01-01), Davidson
patent: 3633268 (1972-01-01), Engbert

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