Patent ID: 7544304

Claim:
A process for laser forming a blind via in at least one layer of a circuit substrate having a plurality of capture pads of varying geometry comprising: before blind via formation and for at least one blind via to be formed in at least one layer of a circuit substrate, evaluating a capture pad geometry value within a predetermined distance from a drilling location with respect to a blind via geometry value to be formed at the drilling location; setting at least one laser operating parameter based on a result of the evaluation in order to obtain a desired capture pad appearance after blind via formation; wherein evaluating a capture pad geometry value within a predetermined distance from a drilling location with respect to a blind via geometry value to be formed at the drilling location for at least one blind via to be formed in at least one layer of a circuit substrate further comprises: calculating a ratio of the capture pad geometry value within the predetermined distance from the drilling location with respect to the blind via geometry value to be formed at the drilling location for each blind via to be formed in at least one layer of the circuit substrate.