Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Patent
1988-10-17
1989-08-15
Nimmo, Morris H.
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
29840, 2281802, H05K 100
Patent
active
048576719
ABSTRACT:
A film carrier according to this invention comprises a base film, a plurality of conductors formed on the base film, and a plurality of layers formed on the conductors, each being made of a low-melting point bonding metal. A bonding method of this invention comprises the steps of aligning the bonding metal layers of the film carrier with the terminals of an electronic part, and half-melting the bonding metal layers by thermocompression, thereby to electrically connect the conductors of the film carrier to the terminals of the electronic part. The object of the present invention is to provide a film carrier which can serve to connect electronic parts to a circuit by means of a low pressure and at a low temperature, without causing damage to the electronic parts such as semiconductor elements, and also a bonding method using this film carrier.
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Grossman, S. E.; Film-Carrier Technique Automates the Packaging of IC Chips; Electronics-Technical Articles; 5/16/74; pp. 89-95.
Nakano Hirotaka
Yoshino Thunekazu
Kabushiki Kaisha Toshiba
Nimmo Morris H.
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