workmanship problems pictorial reference
Pictorial Reference - Printed Wiring Assemblies
Pictorial Reference - Printed Wiring Boards
Pictorial Reference - Components
Pictorial Reference - Fiberoptics
Pictorial Reference - Wiring and Cabling
Pictorial Reference - Wire Bonding External Link
inspection pictorial reference
workmanship training

Guidance and Advice



WORKMANSHIP PROBLEMS PICTORIAL REFERENCE

 

Components
C2 MOS capacitor ESD damage

Here are two images showing ESD damage to a C2 MOS capacitor. What appears to be a slight pinhole on the top image shows to be substantial damage to the trace when examined at 4300X. .

This damage could have been prevented had the appropriate ESD safe-guards been in place.

Reference :
NASA-STD-8739.7 paragraph 7.2
Protected Work Environment
3. ESD-Protective Work Surfaces - All work surfaces in an ESD-protected area shall be static dissipative and electrically connected to the common point ground.
5. Personnel Grounding Devices - Personnel Grounding Devices shall be supplied to all personnel working with or handling ESDS items to prevent the accumulation of dangerous electrostatic charge levels.




 

 


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