Metal working – Method of mechanical manufacture – Electrical device making
Patent
1994-01-14
1996-10-29
Silbaugh, Jan H.
Metal working
Method of mechanical manufacture
Electrical device making
29841, 26427213, 26427215, 26427217, 156 69, B29C 4514, B29C 7070
Patent
active
055686842
ABSTRACT:
An electronic device (12, 13) is substantially enclosed by a fluid encapsulant (17). The fluid encapsulant consists essentially of a silicone resin and a catalyst selected from the group consisting of platinum and tin. The silicone resin is selected from the group consisting of polydimethlysiloxane, polymethylphenylsiloxane, polydimethyldiphenylsiloxane, and mixtures thereof. Such silicone resins comprise molecules terminating in vinyl components and hydride components. The molar ratio of vinyl components to hydride components is maintained within the range of five to twenty. As will be explained more fully later, this ratio of vinyl components to hydride components assures that the resin will remain substantially a liquid even after cure, due to limited cross-linking or polymerization during the cure. The electronic device is contained within a container (16) having a sealed cover (18) for containing the liquid encapsulant during the operation of the electronic device.
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Anderson Roderick B.
Birnbaum Lester H.
Lucent Technologies - Inc.
Ortiz Angela
Silbaugh Jan H.
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