Selected hard gold PCB high TG FR4 material motherboard
Short Description Glass Transition Temperature (Tg) — This is an important parameter for the base material, as it determines the temperature at which the resin matrix changes over from a-elastic condition to a soft, elastic bone. https://www.ymspcb.com/8layer-hard-gold-main-board-yms-pcb.html Parameters Layers 8L High Tg FR4 Material Base MaterialIT180A High tg 170 ° Viscosity ：3.2 mm Min Holes0.25 mm Minimum Line Range/ Concurrence ：0.10 mm/0.10 mm Minimum Concurrence between Inner Caste PTH to Line ：0.2 mm Size ： 192 mm × 135 mm Aspect Rate ：12.8 1 Face treatment ： ENIG Selective Hard Gold Plating Process characteristics High tg, Picky hard gold .ApplicationsCommunication What is high Tg PCB ( published circuit board) Generally high Tg refers to high heat resistance in PCB raw material, the standard Tg for bull sheathe laminate is between 130 – 140 ℃, High Tg is generally lower than 170 ℃, and middle Tg is generally lowe...