Invention Grant
US08053377B2 Low stress photo-sensitive resin with sponge-like structure and devices manufactured employing same 有权
具有海绵状结构的低应力光敏树脂和使用其制造的装置

Low stress photo-sensitive resin with sponge-like structure and devices manufactured employing same
Abstract:
System and method for forming a structure including a MEMS device structure. In order to prevent warpage of a substrate arising from curing process for a sacrificial material (such as a photoresist), and from subsequent high temperature process steps, an improved sacrificial material comprises (i) a polymer and (ii) a foaming agent or special function group. The structure can be formed by forming a trench in a substrate and filling the trench with a sacrificial material. The sacrificial material includes (i) a polymer and (ii) a foaming agent or special function group. After further process steps are completed, the sacrificial material is removed from the trench.
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