Semiconductor burn in test
Layer 2 ~ 28
Material Arlon, Nelco, ISOLA
Thickness 1.6T ~ 2.4T
Pitch 0.35 Fine pitch ~ 1.27
Min Hole 0.127mm
Clearance 50um
Impedance Single 50 ohms , Diff 90 & 100 ohms
Surface Finish ENIG , Hard Gold
Option Capped and Filled via
Brun - in test Dut Board
Layer 4 ~ 14
Material FR-4 High Tg, Arlon, ISOLA, Nelco
Thickness 1.2T ~ 1.6T
Pitch 0.27 Fine pitch ~ 0.8
Min Hole 0.127mm
Clearance 40um
Impedance Single 50 ohms
Surface Finish ENIG
Option Capped and Filled via or Thru hole type