Metal fusion bonding – Process – Plural joints
Patent
1976-03-29
1976-12-21
Smith, Al Lawrence
Metal fusion bonding
Process
Plural joints
228106, 228212, 228 441A, H01L 21603
Patent
active
039983773
ABSTRACT:
A method of and apparatus for bonding together a first and a second workpiece, which are bondable by applying energy thereto while they are urged together at a bonding site. First, the workpieces are urged together by moving into engagement with the first workpiece, and then slightly deforming, a rigid, self-supporting, deformable planar member. The deformation is not only effective to urge the workpieces together, but also forms a capillary space between the member and the first workpiece. Then, the energy is passed to the bonding site. If the energy should produce, molten components at the site, they are attracted into the capillary space to prevent them from creeping up the workpieces and from undesirably building up at the bond site. Multiple pairs of workpieces may be simultaneously bonded by overlying all of the bonding sites with the member and by deforming it by the application of a force at a point generally central to all of the bonding sites.
The planar member may be a piece of glass through which alignment of the workpieces and and the formation of the bond may both be observed.
REFERENCES:
patent: 3501832 (1970-03-01), Saburo Iwata et al.
patent: 3520055 (1970-07-01), Jannett
patent: 3541673 (1970-11-01), Cushman
patent: 3655177 (1972-04-01), Coucoulas
patent: 3670396 (1972-06-01), Lindberg
patent: 3713575 (1973-01-01), Cushman
patent: 3724068 (1973-04-01), Galli
Pfeffer M.
Ramsey K. J.
Smith Al Lawrence
Teletype Corporation
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