FORMATION OF DESIGN PATTERN ON METAL STENCIL AND METAL STENCIL HAVING PATTERNABLE CLAD LAYER

摘要

PURPOSE: To partly remove a resist in a stencil pore and to make an accurate edge portion of a pattern by using a resist material to which a metal powder is added to increase the volume. CONSTITUTION: A resist material prepared by filling an alkyd resin with a metal powder (A) is used to form a coating layer 3 on a bridge 2. Then the layer 3 is exposed to beams of high energy rays (such as laser beams) according to a specified pattern to form a design pattern comprising a partly removed region 4 of the layer 3. As for the powder (A), Zn, Cu, Ni or an allay containing one or more metals of these is preferably used, and the powder (A) is added preferably by =55wt.% of the whole mixture. By using the obtd. material and by decreasing the beam diameter, the layer 3 can be left in a part of an aperture 5 and an accurate pattern can be formed.