Patent ID: 7479779

Claim:
An image sensor test system configured to bring input/output terminals of an image sensor into contact with a contact of a test head, the image test system configured to emit light to a light receiving surface of the image sensor from a light source and, while doing so, inputting/outputting electrical signals between the contact of the test head and the image sensor so as to test the optical properties of the image sensor, the image sensor test system comprising: a pre-test sensor stacker configured to store image sensors before testing; a first inverter configured to invert an image sensor supplied from the pre-test sensor stacker; a contact arm configured to pick up and move the inverted image sensor inverted by the first inverter, the contact arm being configured to bring input/output terminals of the inverted image sensor into electrical contact with a contact of the test head; an attachment portion configured to attach the light source and the test head to the image sensor test system so as to place the light source and the test head beneath the image sensor; a second inverter configured to invert an image sensor after testing; and a plurality of post-test sensor stackers configured to store tested image sensors inverted by the second inverter.