| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a preparation method for an imaging element capable of preparing easily the imaging element of high work precision while saving a cost and a time. <P>SOLUTION: An cutting edge part 2 arrayed, on a metal block 21, with a plurality of protruded punching edges 22 having two side faces 22a, 22b corresponding to two mirror finished surfaces 31a, 31b of a micro hole 31 formed in a substrate 3, is moved downwards onto the substrate 3 to pressure-contact, by a pressure rising part 13, while vibrated by an ultrasonic oscillation part 12, and the substrate 3 is punched by the punching edges 22. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
