PROBLEM TO BE SOLVED: To prevent disconnection of a circuit while performing arrangement of electronic components and through-holes or wiring of an electronic circuit matched with the warp direction of a substrate by defining the warp direction of the substrate, in an endoscope where autoclave sterilization can be performed.SOLUTION: In the substrate for an endoscope used for the endoscope where autoclave sterilization can be performed, when thermal stress occurs in the substrate for an endoscope by heating, at least one region is provided where the stress is reduced and the warp of the substrate for an endoscope is defined in a prescribed direction.COPYRIGHT: (C)2012,JPO&INPIT【課題】オートクレーブ滅菌が可能な内視鏡において、基板の反り方向を規定することにより、基板の反り方向に合わせた電子部品及びスルーホールの配置や電子回路の配線を行いつつ回路の断線を防止する。【解決手段】オートクレーブ滅菌が可能な内視鏡に用いられる内視鏡用基板において、加熱によって前記内視鏡用基板に熱応力が生じた際に、該応力が小さくなって該内視鏡用基板の反りが所定の方向に規定される少なくとも1つの領域を設ける。【選択図】図1
