Patent ID: 7677941

Claim:
An electronic device substrate comprising: an insulating plate base with a first terminal end and a second terminal end; an electronic circuit formed on one surface of the base; and a conductive film formed on the other surface of the base and having electrical conductivity, wherein: the electronic device substrate is completed through a manufacturing process including charge-removal movement in which removal of a charge of the base is combined with movement of the electronic device substrate; in the charge-removal movement, the electronic device substrate is moved while being supported by a roller that has electrical conductivity and is grounded, wherein the roller abuts the conductive film and rolls to moveably support the electronic device substrate during the charge-removal movement; the conductive film extends continuously about an entire periphery of the other surface of the base; and the conductive film has a part that is formed into a stripe extending continuously from the first terminal end to the second terminal end and along the movement direction of the electronic device substrate in the charge-removal movement.