发明申请
US20090314742A1 METHOD FOR PROCESSING SUBSTRATE AND METHOD FOR PRODUCING LIQUID EJECTION HEAD AND SUBSTRATE FOR LIQUID EJECTION HEAD 有权
用于处理基板的方法和用于生产液体喷射头的方法和用于液体喷射头的基板

METHOD FOR PROCESSING SUBSTRATE AND METHOD FOR PRODUCING LIQUID EJECTION HEAD AND SUBSTRATE FOR LIQUID EJECTION HEAD
摘要:
A method for processing a substrate includes preparing a substrate having a first layer on a first surface side thereof, the first layer having a material capable of suppressing transmission of laser light, processing the substrate with laser light from a second surface that is opposite the first surface of the substrate toward the first surface of the substrate, and allowing the laser light to reach the first layer to form a hole in the substrate, and performing etching of the substrate from the second surface through the hole.
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