Case Study No.0004
Point and Shoot Process Validation for 4-up Circuit Boards

Overview

Four copies of the same circuit are produced on the same circuit board. Complete testing on all good circuits while avoiding production steps on a circuit which has already failed a previous step. (Each copy of the circuit carries its own barcode).

Issues

Four copies of the same circuit are produced on the same circuit board. The circuits are separated late in the production process. When a circuit fails a production test either all 4 copies must be failed or each circuit must be individually tracked. Unfortunately this would normally require 4 separate scanners and control circuitry for each.

AIDEA’s solution

Track each instance of a circuit separately. The AIDEA solution uses a premium Microscan scanner and a Versa-Check. The Versa-Check "Points" the beam at each circuit in succession so the exact circuit under test is known. Data is sent to a process server for confirmation. The Versa-Check forwards pass information to the process PLC (provided by the customer in this case) one bit at a time using I/O. The PLC skips testing on any circuit already failed.

Product list:

AIDEA Versa-Check controller
Microscan scanner

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