Method of manufacturing resin molded electronic component

A method of manufacturing a resin molded electronic component using a mold comprising upper and lower sections, the lower mold having a cavity with an open top, the method comprising:

• inserting an electronic component element and a liquid resin precursor including a norbornene monomer into the lower mold cavity, the lower mold being heated to between 40° C. and 60° C., inclusive and the resin precursor having a viscosity of 10 Pa·s or lower at 40° C.;
• arranging the upper mold so as to sandwich the inserted element and resin precursor within the lower mold cavity, the arranged upper mold being heated to between 80° C. and 120° C., inclusive so as to initiate curing of the resin precursor progressing from the arranged upper mold, and the lower mold remaining heated to between 40° C. and 60°, inclusive during said arranging and curing;
• and
• pressing the sandwiched element and resin precursor between the upper and lower molds during said curing.