HDI

Motivation – Going forward with HDI

  • Simplify Routing
  • Reduction of the number of layers
  • Improve control of signal integrity
  • Drive cost down
  • Improve EMI
  • Miniaturization
  • Faster time to market

 hdi4

 Advantage with HDI

  • Number of layer can be reduced from 12 to 10 – saving 1 signal layer and one GND layer
  • Bring signal layers closer together and reduce inductance to ground. Will simplify via structure and improve signal integrity
  • Reduce overall thickness of the board and reduce also the inductance of the PTH vias.

PCB HDI

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