Patent ID: 8575951

Claim:
A method for testing multiple coupons comprising: a. loading more than one coupon on a vacuum chuck associated with a probe station, wherein the probe station has associated therewith an instrument cluster, wherein the instrument cluster comprises one or more hardware modules that operate to test an electrical property of a material formed on multiple test devices of each coupon in a high productivity combinatorial manner; b. aligning each coupon by the steps of: i. determining the unique identification of a coupon and entering the unique identification of the coupon into a data storage medium; ii. aligning a theta deviation structure with a reference mark on the probe station to determine a deviation angle, theta; iii. aligning probe tips of the probe station with a reference structure on the coupon and determining the x and y coordinates of the reference structure; iv. entering the deviation angle, theta, and the x and y coordinates of the reference structure into the data storage medium wherein the deviation angle, theta, and the x and y coordinates are associated with the unique identification of the coupon; v. aligning probe tips of the probe station with a test structure on the coupon and determining the x and y coordinates of the test structure; vi. entering the x and y coordinates of the test structure into the data storage medium wherein the x and y coordinates are associated with the unique identification of the coupon; c. repeating steps i)-vi) until all of the coupons have been aligned; and d. initiating a sequence of tests of the coupons after the last coupon has been aligned.