Product Name: Sensor IC Substrate Material: Shengyi SI10U Minimum width / spacing: 35 / 35um Surface: Immersion Gold PCB thickness: 0.25mm Layer: 4Layers Structure: 1L-4L,1L-2L,3L-4L Solder mask ink: TAIYO PSR4000 AUS308 Aperture: Laser hole 0.075mm, Mechanical hole 0.1mm Application: Sensor IC Substrate