Photosensitive Dry Film Instead of Thermal Transfer

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Photosensitive Dry Film Instead of Thermal Transfer

Reference: CP0007

Condition: New product

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Steps for Experiment

1, removing film, photosensitive film is sandwiched between two layers of film, tear up the side of the first little difficult to tear, try a few on the line
2, then foil, copper clad laminates little cleaning can paste level, try not to bubble
3, stickers, ready, irons a little heat, not too hot, fixed effect
4 printed circuit board film, it is recommended that the film can achieve the highest degree of fine, if not accuracy requirements with sulfuric acid paper print.
5, exposure, circuit diagram printed on the photo plate (Note: The dry film is negative, so anti-white print, which is contrary to our usual plate) for about 30 minutes with ordinary energy-saving lamps, exposure machine 1 minute on the line, the sun never tried, it should be about 15 minutes, the exposure process obviously, because the photosensitive film will change color, from light- colored dark blue exposure. You will easily see the circuit diagram is shown in the board.
6, developing, torn off another layer of protective film and put it into the developer (developer 1:100 watered, 10 grams against 1 liter of water), developing with a cotton swab and a little harder to wipe the board
7, etching Needless to say
8, after etching, stripping, mold release agent watered one sixty or 70, the board bulb within minutes

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