Why NOT use Silkscreen

Using silkscreen can cause problems.

Source: ~ Nine Dots Connect - YouTube 42 minutes. 
Introduction to DFM (Layout Considerations Part 1) - YouTube

That's It !

DFX - Root Causes of PCB Failures

Source:
http://www.smta.org/chapters/files/wisconsin_dfx-root_cause_failure_analysis_final.pdf

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DfR Solutions | Designing for Reliability

DfR Solutions |: Designing for Reliability

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Better DFM for PCBs | Online Design For Manufacturability Check Tool

Better DFM for PCBs | Online Design For Manufacturability Check Tool:

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Winonics | Printed Circuit Boards | Prototypes - Production - Quick Turn Arounds | Brea, CA

Winonics | Printed Circuit Boards | Prototypes - Production - Quick Turn Arounds | Brea, CA:

See Products and Services for DFM (Design for Manufacture) recommendations.


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Footprint Recommendations - DFM

These are suggested footprints from a recent DFM report from a high volume contract manufacturer, (Second Largest CM in the World).

Note these dimensions are not per IPC-7351. These dimensions are based on experience with high volume production runs.

Murata Caps (Murata Recommendations)

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Source Murata Datasheet

Panasonic Resistors (Panasonic Recommendations)

Source: Panasonic Datasheet


Bottom Line:  

IPC7351, Contract Manufacturers, and Component Manufacturers all have different opinions and suggestions. 

I suggest you study them all and create a universally acceptable solution that will provide high quality yields in high volume production.


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Design For Manufacturing - DFM

Below are links to some excellent papers about DFM.

Design for Manufacturability of Rigid Multi-Layer Boards - Tom Hausherr

High Performance Multilayer PCBs Design and Manufacturability

Free DFM - Advanced Circuits

Advanced Circuits offers a Free DFM check for your designs.

I recently used Advanced Circuits for a quick turn and I was very happy with the service and results.

Design for Manufacturing

AsteelFlash IPC Presentation.pdf (application/pdf Object)