abstract |
The problem to be solved by the present invention is to provide an insulating resin material having high dimensional stability and small warpage at the time of hardening. The solution of the present invention is an insulating resin material containing a thermosetting resin, an inorganic filler, and an insulating resin material of a polymer resin having a glass transition temperature of 30 ° C or less, and a nonvolatile component in the insulating resin material. The mass%, the content of the inorganic filler is 50 to 95% by mass. |