светочувствительная печатная плата h-5m длиной 30 см до

Photosensitive 30cm X 5m Photoresist Sheet For Printed Circuit Board Manufacturing

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Photographic film, also known as film, is used to make the circuit board, stick the circuit board, it will become a sensitive circuit board

Suitable for plating, hole cover and etching process

Excellent ability to cover holes

High resolution

Excellent adhesion to almost all surfaces

Image clarity after exposure

The front panel is very clean when unfolded

Size: approx 0.3 x 5m / 11.81 x 196.85 inch

: as pictures show

Specification:

How to use :

1 . Clean up the board. Cut dry foil larger than .

2. Apply Resistance: This photoresist layer, the top and layer are transparent protective layer, so you need to remove one protective layer at first, the easy way is to use two small pieces of adhesive tape. Then apply the middle layer to the deck.

3. Expose: Put a negative composition on top of the remaining protective layer.

4. Work out: remember: you need NEGATIVE film developer, remove the residual protective layer from the film. After 3 minutes, take the board out of developer and keep under running water to check, you can always put it back in developer if you need more time.

Etching:

the layer is resistant to most of the acid pickling solution, the PH value can be resistant to most of the alkaline pickling solution between PH 8.0 ~ 8.5.

Lid Hole:

1.5 miles of dry film can completely cover a 0.25 inch hole.

Plating:

The film is available the most commonly used plating bath, no wrinkles, no color.

includes :

1 dry photosensitive