Hi All
I posted an interesting patent on a photo resist process. The patent describes applying a non-sensitized (very simple) polymer coating to the pwb, drying and storing. When needed, the board is sensitized by spraying it with the photo-initiator, drying and exposing.
The developer is water, the stripper is caustic.
Anyone have any experience with or used this ?
Comments from the chemists among us on the usefulness of this info would be much appreciated.
I posted an interesting patent on a photo resist process. The patent describes applying a non-sensitized (very simple) polymer coating to the pwb, drying and storing. When needed, the board is sensitized by spraying it with the photo-initiator, drying and exposing.
The developer is water, the stripper is caustic.
Anyone have any experience with or used this ?
Comments from the chemists among us on the usefulness of this info would be much appreciated.