| 摘要 |
PROBLEM TO BE SOLVED: To perform twist groove processing of a microdrill with high accuracy and to mass-produce the microdrill with a high yield. SOLUTION: A method for manufacturing the microdrill comprises a step for processing a prescribed member to form a drill body part of the microdrill, an exposure solution coating step for coating a prescribed area including at least the drill body part with exposure solution, a twist groove-formed area exposing step for eliminating the exposure solution of a twist groove-formed area by rotatingly moving the microdrill straightly ahead while emitting laser beams to an exposure solution-coated surface of the drill body part, a twist groove forming step for forming a twist groove by soaking at least the drill body part in etching solution and eliminating etching from a drill body member of an area where the exposure solution is eliminated, and an exposure solution cleaning step for cleaning and eliminating the exposure solution with ultrasonic cleaning. COPYRIGHT: (C)2003,JPO |
