Free DFM Check
We provide our customers DFM for free, make sure the product of design, production, surface finished and components are the most appropriate. It will avoid the risks of manufacture greatly, and it will find out the defective products before mass production or prototype and optimizing.
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DFM checklist
Files version and latest updated time
Surface Finshed: Lead free/ with Lead
Clearly components marking and silkscreen
Completed BOM including custom PCB manufacturer, part number, description and Designator
PCB specification: material, thickness, copper, layers, surface finshed, silkscreen colors and special requirements
Correct PCB stackup and panelized
Provide correct SMT files
Completed programmable and testing method
Clearly assembly manual with finished product
Other special manufacture requirements
BOM and PCB pad inspection (some of customers changed the Gerber files and didn’t update BOM in time, that caused sourcing wrong components)
Evaluation PCB manufacturing, including but not limited to: sequence of assembly, stencil type, direction before oven and tool production, analysing heat-absorbing pads and surrounding components, moisture sensitive device/thermosensitive device protection, PCBA testing plan and detectable rate, quantity for trial production and report etc.
