COMPOSITION FOR FORMING SUBSTRATE, AND PREPREG AND SUBSTRATE USING THE SAME

摘要

PURPOSE: A composition for forming a substrate is provided to ensure excellent thermal, electrical, and mechanical characteristics when used as a high-speed circuit and an insulating material of a printed circuit board of a high frequency band. CONSTITUTION: A composition for forming a substrate comprises: a liquid crystal thermosetting oligomer having at least one soluble structure unit and at least one thermosetting group of the terminal of the main chain; and a compound formed by polymerizing a fluorine compound having a functional group capable of reacting with the main chain of the liquid crystal thermosetting oligomer.