ENHANCED MANUFACTURING SERVICES 4.0

EMS 4.0: Design For Test


The EMS 4.0 workflow utilizes data analytics to provide continuous assessment at each stage in the Design to Delivery workflow, with feedback provided at each stage.

Companies must deliver good products to their customers; defect free and at minimum cost.

The challenge is how to detect, or prevent defects from occurring, so that only good products are shipped to the customer.

Traditional commercial DfT tools work only from the layout stage, which is too late in the process.

Design data must be analyzed at the earliest stage in the product life cycle by importing schematic data.

Electrical DfT rules violations should be identified and rectified prior to commitment for board layout in order to prevent costly design re-spins. These rules can include standard and customer’s specific checks, relating to company requirements. With a centralized knowledge database, the same problems will never be repeated!

Test point requirements must also be identified pre-layout, during the schematic capture stage. This reduces the need for unnecessary test access, saving on PCB real estate, particularly on high density boards.

TestWay simulates the test strategy including any combination of inspection and test machines, delivering the highest test coverage. This unique combination provides electrical rules analysis, test point analysis, test strategy optimization and test cost modeling, based purely on schematic information. This, in turn, provides valuable layout guidelines that can be used to optimize the Printed Circuit Board layout.

Once the PCBA layout is completed, a mechanical DfT analysis must be conducted to confirm the nets that require test access are not compromised by solder mask, component outline, adjacent probes constraints etc.

The EMS 4.0 workflow enables tremendous benefits in time-to-market, cost reduction, quality improvements. Realize your digital transformation now with the ASTER digital suite including TestWay and QUAD.

The industry 4.0 ASTER publications:

  1. Enhanced Manufacturing Services 4.0
  2. Design For Test 4.0
  3. Test Coverage 4.0

A selection of our customers:

A selection of our customers
Nov 28

SMTA Silicon Valley Expo

Nov 28
San Jose, CA, USA
Nov 13-16

Electronica Munich 2018

Nov 13 - Nov 16
Munich
Nov 7

PCB Carolina 2018

Nov 7
NC 27606, USA
Oct 23-24

Enova Paris 2018

Oct 23 - Oct 24
Paris
France
Oct 16-17

SMTA International 2018

Oct 16 - Oct 17
Rosemont, IL, USA
Sep 21-23
May 2-3

DMEMS San Diego 2018

May 2 - May 3
Del Mar
USA