Artifact Details

Title

National Bureau of Standards (NBS) circuit board fabrication

Catalog Number

102622420

Type

Still image

Publisher

National Bureau of Standards

Place of Publication

Washington, DC, US

Identifying Numbers

Other number #1894 Verso
Other number (13.1) Metadata
Other number Photo 1099 Metadata

Dimensions

overall: 10 in x 8 in

Description

B&W image of a hand placing a ceramic plate into a machine.
Includes caption: "In one method of making a printed electronic circuit at the National Bureau of Standards the prepared screen, containing the circuit pattern, is positioned on the ceramic base plate. The wiring diagram and inductors are printed on the plate by forcing silver through the stencil with a rubber squeegee. Here, the printed conductors consisting of silver oxide paint are shown just after the stencil screen is raised from the ceramic plate. The resistors are applied in the same manner except that their characteristic values are changed by varying their length, width, thickness and the composition of the graphite ink. (13.1) Photo 1099"

Category

Photograph

Lot Number

X7413.2015