Selecting PCB Suppliers

Oldie but goodie - Lee Ritchey

http://speedingedge.com/PDF-Files/SELECTING%20PCB%20SUPPLIERS2303.pdf

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CHARACTERIZATION OF A PRINTED CIRCUIT BOARD VIA

Thesis Paper - Brock J. LaMeres, 1998

IPC-4010 Slash Sheets

All You Should Know About the IPC 4101 Slash Sheet - Rayming

All About IPC-4101 and IPC-4103 Slash Sheets - Altium

PCB LAMINATE MATERIAL INFORMATION - epec

Common Lead-Free Capable IPC-4101 Materials - Saturn

Laminate & Prepreg Manufacturing - Isola

When designing high volume PCBs is important to consider the regional availability of the materials used in the stackup.



Reference: Understanding_The_PCB_Laminate_and_Prepreg_Process

CAF Resistant Requirements: 

• Product must pass 1000 hr CAF testing (100V, 85%RH, 85C).
• B Stage (pre-preg) is restricted to the following glass styles: 106/1067, 1080/1086, 2113/3313 and 2116.
• C Stage (cores) must have a resin content > 45%.
• Isola 370HR material is recommended for cost sensitive applications.

Notes: 7628 and 1652 glass should be avoided if CAF is a concern.

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Zed Board Power Decoupling Scheme

Research Links:

Zedboard Decoupling

Does the Zedboard bypass scheme make sense?

Bypass cap location is irrelevant?

How much Bypass does the Zynq have On-chip?

Are there flaws in the reasoning behind the Zedboard bypass scheme?

Measuring Bypass Capacitors on a Populated Board

Fabrication Drawing Notes

Key Engineering Specifications Your Custom Printed Circuit Board Fabrication Drawing MUST HAVE |:

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Understanding PCB Manufacturing: Silk-Screening

Understanding PCB Manufacturing: Silk-Screening: 

"Currently three methods are available for applying the “Ident” to the PCB. 

1. Manual screen-printing can be utilized when line widths are greater than 7 mil (0.007”) and the registration tolerance is 5 mil. 
2. LPI (Liquid Photo Imaging) provides more accuracy and legibility than manual screening and is employed when line widths are greater than 4mil. 
3. DLP (Direct Legend Printing) is the most accurate and legible of the 3 processes but also has the highest cost for consumables."

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