Printed Circuit Board and Flex Circuit Design, Development and Engineering
Design Reference and Calculators
PCB DESIGN:
PCB Design and Fabrication Process DFM/DFT
FLEX DESIGN:
Flex Guidelines
FREE GERBER VIEWER:
GC Preview
MATERIALS:
PCB Laminate and Flex - Rogers
Kapton and Polyimide Film
Material Properties Datasheet
POPULAR LINKS:
IPC Homepage
IEEE
SMTA
Packages
POPULAR CALCULATORS:
PCB Trace Width / Current
VIA Current
Wire Gauge
Unit Conversion
Copper Current Nomograph
Microwave Calculator
RF Design Tools - AppCAD
Engineering and Science
Mechanical Engineering
ENGINEERING SEARCH ENGINES:
Global Spec
EEM
Thomas Register
RESOURCES:
Thin Film Technology
Prototype and Production, Concept to Completed Product!
GETTING WHAT YOU PAID FOR:
We had a customer that insisted on sending our completed design outside of the U.S. in an effort to cut cost.
The outside manufacturer insisted on redesigning the board for their process and equipment.
The left image below "Good Marking" is the original design.
The image on the right "Illegible Marking" was the outsourced design.
RESULTS:
The inspection and assembly equipment could not read the blurry alignment fiducials (circled).
The traces in the corner were changed which affected the impedance.
The radius in the cutout was routed out so much that the module gasket (that installed in the cutout) could not make a tight seal.
The via pad was reduced to the extent that any drill mis-registration will promote cracking and breakout.
Any of these events will cause significant cost overruns, design delays, performance and reliability issues.
Know your design, know your supplier, and trust that PCB3D will make sure this does not happen to you!
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