Patent ID: 6307390
Filing Date: 2001-10-23
Classification: G01R

Abstract:
A method of creating a transportable shell holding a semiconductor wafer to be tested therein, the method comprising:placing a wafer holding member on a table and holding the wafer holding member thereon by vacuum adsorptivity;placing the semiconductor wafer on the wafer holding member and holding the semiconductor wafer thereon by vacuum adsorptivity;bringing a contactor into contact with the semiconductor wafer which is held on the wafer holding member by the vacuum adsorptivity, and holding the contactor on the wafer holding member by reducing a pressure between the contactor and the wafer holding member to create the shell which comprises the wafer holding member, the semiconductor wafer and the contactor each being connected to each other to make one integrated unit;confirming the vacuum adsorptivity by which the contactor and the semiconductor wafer are held on the wafer holding member, using a pressure detector; andreleasing the vacuum adsorptivity by which the wafer holding member is held on the table, and allowing the shell to move from the table.