Teaching tool for a robot arm for wafer reaction ovens

A teaching tool for a robot arm for wafer reaction ovens, as a unique piece for being applied while calibrating a robot arm to anchor the robot arm with a blade with respect to a tray located inside a reaction oven, comprising:

• an upper flange having a width thereof to maintain a spacing between a handle of the robot arm and a door of the reaction oven while in calibration;
• an insert block having a position width thereof to keep the teaching tool aligned with a center line of the tray by plugging a central passage of the tray;
• a pair of lower flanges, for forming therebetween a lower tunnel aligning with the center line, the lower tunnel allowing the blade to contact closely and horizontally therefrom below and thus to maintain a position height between the blade and a floor of the reaction oven;
• and
• wherein, during calibration, the teaching tool is placed at an upper conjunction between the handle of the robot arm and the blade.