More and more company realize the value for design for manufacturing (DFM) analysis especially design for assembly (DFA). As an EMS/CEM provider, it could predict manufacturing blocks/issues so as to improve build quality & save cost, but also it could allow you to build standard DFA/DFM capability so as to increase customer satisfaction; whatever your main focus is prototyping, quick turn assembly, or high volume production. As an OEM, it could not only reduce your product development cycle time so as to accelerate the product launch, but also improve product reliability so as to consolidate brand loyalty & reduce business risk.

DFM Expert: a 3D DFA/DFM solution

Through 5 years technology research, Vayo updated its DFA/DFM software product to from 2D solution to 3D solution at year 2017. VayoPro-DFM Expert is an unique 3D DFA/DFM solution for electronics industry at present, it allow you to find out the problem or violations on assembled boards, better understand the impact of the problem.

High effective work environment with dual monitors

2D & 3D graphic representation of PCBA allows you access the potential defects visible. With dual monitors for both PCBA graphic, the DFM/DFA analysis is a joy of work!

Step-by-step workflow

DFM/DFA analysis work could be more easy and fast; step-by-step workflow provide you a simple to learn & use this tool. Now DFM/DFA analysis for PCBA is more simple than ever!

Support CAD/Gerber data source

DFM Expert could support CAD source like Cadence Allegro/OrCAD, Mentor, PowerPCB, Altium/Protel, Zuken, ODB++, IPC-2581, ….
Meanwhile it support XY coordinates + Gerber data source if CAD source is not available.

3D Component entity library

Component entity library comes with actual dimension data of components (Length, width, height, pitch, pin element, …), it allows DFM Expert to analysis potential defects based on reality of PCBA.

Comprehensive checking rules


  • 1,000 assembly checking rules

screen printing process, placement process, reflow process, manual insert process, wave soldering process, test & inspection, rework, …

  • 300 fabrication checking rules

signal layer, silkscreen layer, solder mask layer, solder paste layer, drill, …)

  • Vayo industry experience and IPC Guideline support

IPC-7351, IPC-A-600, IPC-A-610, IPC-TM-650, IPC-2221, IPC 7095, …

  • Continuous improvement of DFA/DFM analysis

  • On-demand development commitment

Interactive result query on virtual assembled boards

After analysis, you could interactively query defects opportunities on both bare boards or virtual assembled boards; then you could better understand the impact of the problem of PCB assembly.

Unique 3D DFA/DFM reports

With DFM Expert, you could generate an unique 3D DFA/DFM reports with comprehensive content among the industry; either you could to easily communicate with your R&D department, or you could demonstrate advanced DFA/DFM capability to your clients so as to win more business. Meanwhile Vayo could customize the report if you have special needs to the form.

DFM/DFA defects examples

Here are some sample issues found by DFM Expert, they could be design mistake, fabrication issue, assembly risk or reliability problem.

Product functions/features and business value

Vayo team keep improving existing functions and features of DFM Expert, and expect to deliver more value to our customer than what they expected.

Customer testimonials

Introduction, Video & Sample data


Free Trial of Vayo Software

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