Stock material or miscellaneous articles – Structurally defined web or sheet – Physical dimension specified
Patent
1995-12-29
1998-12-08
Aftergut, Jeff H.
Stock material or miscellaneous articles
Structurally defined web or sheet
Physical dimension specified
117 1, 148DIG12, 148DIG135, 156153, 156281, 437225, 437921, 437974, 428408, 4284111, 428700, B32B 3100, C30B 3300
Patent
active
058466380
ABSTRACT:
A method of forming defect-free permanent bonds without the use of adhesives as well as devices formed by this method is disclosed. In general, the disclosed process allows similar or dissimilar crystalline, vitreous or dense polycrystalline ceramic, metallic or organic polymeric components to be first joined by optical contacting and then heat treated to stabilize the bond. The heat treatment can be performed at a low enough temperature to prevent interdiffusion between species, thus insuring that the bond is not subjected to excessive mechanical stresses and that the materials do not undergo phase changes. Therefore stable bonds can be formed using the disclosed process between materials of widely differing physical, mechanical, thermal, optical and electro-optical properties such as different hardness, chemical durability, mechanical strength, coefficients of thermal expansion, thermal conductivity, crystal structure, refractive indices, optical birefringence, nonlinear optical coefficients, electrical conductivity, or semiconducting properties.
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Aftergut Jeff H.
Beck David G.
Onyx Optics, Inc.
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