Stock material or miscellaneous articles – Two dimensionally sectional layer
Patent
1974-11-27
1976-10-19
Dier, Philip
Stock material or miscellaneous articles
Two dimensionally sectional layer
428 64, 428137, 428426, 428433, 29 2514, 29625, 313369, 204 15, 427 97, B32B 310, C25D 502, H01J 3100, H01J 912
Patent
active
039872262
ABSTRACT:
A face plate suitable for use with an acoustical-optical image tube is disclosed and its method of manufacture. A fused glass capillary array which constitutes a disk having a large number of smooth parallel passages or pores therethrough is metalized, preferably by an electroless plating process, whereby the inside surfaces of all the pores are coated. The resulting layer of gold, silver or platinum may then be increased, if desired, by further plating, after which the disk is cleaned, heated to approximately 470.degree. C. and the pores filled with a sealant such as silver chloride. One or both surfaces may then be lapped to provide a disk having a glass surface but with many conducting cylinders extending therethrough which then appear as rings on the surfaces. If it is desired to fill the rings to make circular contacts, the sealant may be etched back from the surface and additional metal added within the rings through a further electroplating process, after which the surface or surfaces may again be lapped. If it is desired that the contacts project out of the surface, the plating steps may be continued to build up the contacts to a desired height.
REFERENCES:
patent: 2793178 (1957-05-01), Morris, Jr.
patent: 3408271 (1968-10-01), Reissmueller et al.
patent: 3436819 (1969-04-01), Lunine
patent: 3464855 (1969-09-01), Shaheen et al.
patent: 3505558 (1970-04-01), Jacobs
patent: 3607585 (1971-09-01), Cassingham et al.
patent: 3622825 (1971-11-01), Bennett
Dier Philip
Smith Robert C.
The Bendix Corporation
Thornton William F.
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