Monday, March 16, 2009

Printed Circuit Board Material Selection

Material selection for the construction of a printed circuit board is a critical step towards the final product.

Product Application Recommendations

Application recommendations for selection of a specific type of material is based upon consideration of the following:

  • Material Suitability
  • Best in Class Performance
  • Cost / Performance Ratio

Key Questions:

  • Will the (PCB / PWB) printed circuit board successfully survive the reflow process?
  • Will the (PCB / PWB) be fit for use and have maximum reliability in use after the reflow process?

Specific Material Selection Suitability

The application suitability of a specific type of material is based on consideration of the following parameters:

  • Tg - Glass transition temperature
  • Td - Decomposition temperature
  • Z axis expansion
  • PWB Processability
  • I.S/T/ performance
  • T260 and T288 performance
  • Solder float survivability
  • Thermal cycling performance
  • And additional data

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