Fabrication of video disc flyleads

Details Fabrication of video disc flyleads Fabrication of video disc flyleads

1980-07-11

1981-08-18

Kimlin, Edward C.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making electrical device

156634, 1566611, 204 15, 204 27, 204 38E, 430314, 430318, 430319, 430320, 430323, 430324, 430327, 204 181, G03C 500, G03C 1100

Patent

active

042847125

ABSTRACT:
Method for preparing a flylead from beryllium copper alloy sheet having one side include a solder layer pattern. The method includes the steps of age hardening the beryllium copper alloy sheet, laminating both sides of the sheet with a dry film photoresist, exposing the first side of the laminated alloy sheet to actinic radiation through a mask to record a first pattern comprising the flylead pattern, exposing the second side of the laminated alloy sheet to actinic radiation through a mask to record a second pattern comprising the solder layer pattern, developing the second pattern to expose the alloy sheet surface, electroplating the exposed alloy sheet surface with a solder, relaminating the electroplated second side, developing the first pattern, etching the first pattern into the alloy sheet and removing the remaining photoresist from both sides of the etched alloy sheet.

REFERENCES:
patent: 3469982 (1969-09-01), Celeste
patent: 3539259 (1970-11-01), Hillman et al.
patent: 3767398 (1973-10-01), Morgan
patent: 3842194 (1974-10-01), Clemens
patent: 3952147 (1976-04-01), Leedom
patent: 3960561 (1976-06-01), Haining et al.
patent: 4077050 (1978-02-01), Dholakia
patent: 4162510 (1979-07-01), Keizer

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