Risho has low CTE material which value is less than 6ppm/C. Risho has a special technology with high filling and particle size and distribution adjustment. This material also uses high heat resistant structure resin which can achieve very high Tg over 300C.
Low CTE and High Temperature Resist CCL and Prepreg
High Heat Resistant and Non-Filler Embedding CCL and Prepreg (Modified PI CCL)
High Heat Resistant and Low CTE CCL and Prepreg (Modified PI CCL)