The Testway Express software for Design for Excellence makes it possible to implement a Lean Test approach that produces a lower cost product whilst maintaining the highest quality.
Our vision is articulated on two principles:
– Using traceability and repair loop information in order to qualify the customer defect universe. The defects include design defects, manufacturing defects and functional defects.
– Using TestWay to import the defect opportunities and identify the possible consequences of inadequate testability and test coverage on a new design.
Traditionally, manufacturing and test constraints are only considered at the end of the layout phase, prior to transfer of the CAD data to production. Due to board complexity, it is now mandatory to consider a validation stage at each step of the design and manufacturing phases. TestWay has been developed to allow users to analyze each stage of the design to delivery workflow. This is achieved by the following stages:
– Design for Component – Checks ROHS, reliability, DPMO, BSDL file validation in order to guide component selection.
– Electrical Design for Test – Verifies electrical DfT guide lines and includes standard and customer’s specific checks and requirements. Simulates the test strategy prior to the layout phase, Aligns the need for physical accesses with the defect universe. Helps to reduce test point access by 30% to 70%!
– Mechanical Design for Test – Optimizes test probe placement, estimates the test coverage and calculates the production yield and TL9000 initial return rates.
– Design to Build and Design to Test – Include Automated Placement Machines, AOI, AXI, JTAG/Boundary Scan, Flying-probe Test, ICT and Functional Test. Exports the CAD data into the native format useable by the production and test machines as well as test fixture files.
– Test for Excellence – Compares the estimated coverage and completed test progams.
