Daniel, I believe you are looking for e'formed (not e-"foamed")
stencils.
A number of U.S., Asian & European companies offer them.
One in the U.S. is Photo Stencil of Colorado.
George Gregoire, Pres, DIMENSIONAL CIRCUITS CORP., San Diego, Calif.
USA
(DCC is the inventor of Imprint Patterning for HDI).

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