Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Patent
1990-08-17
1992-04-21
Picard, Leo P.
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
174261, 174257, H05K 100
Patent
active
051070782
ABSTRACT:
An electric connection of disconnection element is described as well as the corresponding connection or disconnection method and integrated circuits using such elements.
The disconnection element consists of a disk or ingot joining two conductive tracks whose extremities are laid on wettable surfaces. Melting of the disk frees surface tension forces which separate its material into two balls centered on the wettable surfaces.
The connection element is formed of two separate disks and, from the wettable surface pads, these disks are disposed opposite each other so that their material, once melted, unites to form a single droplet.
A process is also disclosed for using these connection and disconnection elements for repairing defective integrated circuits.
REFERENCES:
patent: 3528048 (1970-09-01), Kirk
patent: 3766308 (1973-10-01), Loro
patent: 4550357 (1985-10-01), Matsumoto
patent: 4652848 (1987-03-01), Hundrieser
patent: 4814283 (1989-03-01), Temple et al.
Patent Abstracts of Japan, vol. 8, No. 176, and JP 5969961 (Takegawa).
Marion Francois
Ravetto Michel
Commissariat a l''Energie Atomique
Korka Trinidad
Meller Michael N.
Picard Leo P.
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