The correct answer is:
(a) Silk Screening technique
Explanation:
The silk screening technique is an ancient process still widely used for producing circuit films, particularly in thick-film technology. This method involves forcing a paste of conductive, resistive, or dielectric material through a stencil or screen onto a substrate. It is favored for its simplicity, cost-effectiveness, and ability to create precise patterns for circuit films.
Why not the other options?
- (b) Surface Mount Technology: This is a modern technique used for mounting components on a printed circuit board, not for producing circuit films.
- (c) Ceramic Printing technique: Though used in certain electronic applications, it is not as universally used or ancient as silk screening.
- (d) Screen Printing technique: While closely related to silk screening, the term "silk screening" specifically refers to the older, traditional process used in thick-film production.