Electricity: conductors and insulators – Feedthrough or bushing – Compression
Patent
1988-11-07
1991-03-26
Dees, Jose G.
Electricity: conductors and insulators
Feedthrough or bushing
Compression
174261, 430313, 430318, 29847, H05K 102, G02F 1333
Patent
active
050023675
ABSTRACT:
In a multi-level circuit of the kind having two or more crossing conductive tracks (12, 14) on a substrate (16) separated at the region of the cross-over (21) by insulative material (20), for example for use in an active matrix display device requiring sets of mutually orthogonal conductors on a substrate for addressing switching elements (71) adjacent the cross-over regions connected to picture element electrodes (70) also carried on the substrate, at least one of the crossing tracks (12,14) is divided at the cross-over region into a plurality of mutually spaced conductive paths (24-26) connected electrically in parallel with one another. In the event of an unwanted short occuring between the cross tracks due to a defect in the separating insulative material, the short is removed by applying a suitable voltage between the tracks causing one conductive path at the area of the short to blow as a fuse thereby disconnecting the short and leaving the one or more remaining paths to maintain electrical continuity in the track.
REFERENCES:
patent: 4732830 (1988-03-01), DiSanto et al.
patent: 4917467 (1990-04-01), Chen et al.
Dees Jos,e G.
Fox John C.
U. S. Philips Corporation
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