PROBLEM TO BE SOLVED: To provide a production method of a fine needle-like body having an intended length and an acute distal end and controlling a side wall state in a simple process.SOLUTION: This formation method of the needle-like body is provided with (1) a process for forming a working base plate consisting of at least two types of materials having qualities of different etching characteristics, (2) a process for uniformly working the working base plate into a needle shape to form a needle-like preparatory body, and (3) a process for selectively etching the needle-like preparatory body to form the needle-like body. This production method of the needle-like body is characterized in forming a duplicate plate using the needle-like body formed by the method as a matrix and executing a transcription molding using the duplicate plate.COPYRIGHT: (C)2009,JPO&INPIT【課題】簡便な工程で、所望の長さを有し、先端が先鋭であり、側壁状態を制御可能な微細な針状体の製造方法を提供する。【解決手段】(1)少なくとも二種類のエッチング特性の異なる材質の材料で構成された加工基板を作成する工程と、(2)前記加工基板を、均等に針状に加工して針状準備体を作成する工程と、(3)前記針状準備体を、選択的にエッチング加工して針状体を作成する工程とを備えた針状体の作製方法。また上記方法で作製した針状体を母型として複製版を作製し、これを用いて転写加工成形を行う。【選択図】図1
