What is DFM?
• DFM is product design considering manufacturing requirements
• DFM is a cooperation between designer and PCB manufacturer
• DFM covers a combination of tools and techniques to accomplish a manufacturable product
Why DFM?
• Lower development cost
• Shorter development time
• Faster manufacturing start of build
• Lower assembly and test costs
• Higher quality
Good DFM support results in a PCB
• That has the right industrial design rules
• That has the right material, in line with the application requirements
• That is in line with the standard process capabilities of a state of the art PCB factory
• That has a limited mix of particular difficulties
Classification target:
• to understand the PCB technology level
• to define the relationship between all design parameters:
• Track & Gap
• ( µvia ) Hole diameter & Ring
• Drill to Cu distance
• Cu thickness to be etched
• Solder Mask
• Aspect ratio
Class 3 to 8 = Standard
Class 9 to 12 = Advanced or Engineering
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