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Device and method for making photomask assembly and photodetector device having light-collecting optical microstructure
Device and method for making photomask assembly and photodetector device having light-collecting optical microstructure
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机译:具有集光光学微结构的光掩模组件和光检测器装置的制造装置和方法
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摘要
An optical mask can be made by providing a transparent mask substrate; depositing a first layer of opaque material, forming an aperture in the first layer; depositing a second layer of transparent material, depositing a third layer of transparent material; patterning the third layer to produce a disc-shaped region, heating the third layer until the disc-shaped region reflows into a lens-shaped region and cross-links, depositing a fourth layer, patterning the fourth layer to produce a cavity extending to the surface of the lens-shaped region, and dry etching the end of the cavity until the second layer develops a shape corresponding to the lens-shaped region.
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