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Method for preparing high resolution polyimide images using non- photosensitive layers of poly(amic acid) or salts thereof
Method for preparing high resolution polyimide images using non- photosensitive layers of poly(amic acid) or salts thereof
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机译:使用聚(酰胺酸)或其盐的非感光层制备高分辨率聚酰亚胺图像的方法
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摘要
A method for preparing high resolution wash-off polyimide images is described having the sequential steps of (a) providing a non- photosensitive layer containing a substantially non-crystalline poly(amic acid) polymer or salt thereof on a substrate; (b) applying an aqueous ink imagewise to the non-photosensitive layer to change the solubility in the ink-applied areas, the aqueous ink containing a solubility altering agent; (c) washing the non-photosensitive layer with an aqueous solution to remove the soluble areas; and (d) converting the poly(amic acid) polymer to a polyimide.
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