Production of strip lines. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Production of strip lines. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Ham Radio Technologies

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As practice shows, for the formation of components on a printed circuit board that require high manufacturing accuracy (strip lines, capacitive and inductive elements, etc.), traditional methods - applying a pattern with paint followed by etching or cutting through the foil with a cutter - turn out to be of little use. I use a different method, which gives good results, especially at high density.

I cover the cleaned and degreased surface of the board with a layer of BF-6 glue, previously diluted with alcohol or a solvent and tinted with ballpoint pen paste. After drying the glue for 2 ... 3 hours, with a thin knife with a sharp end, I cut out the required pattern of conductors along a metal ruler. From those areas where the foil must be removed, I remove the layer of glue with tweezers, picking it up from the edges with the tip of a knife.

Further, as usual, I etch the board in a solution of ferric chloride.

Author: A.Kopylov

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