Patent ID: 7934312

Claim:
A production method for an electronic circuit device having a circuit board with a surface upon which electronic components are mounted; a resin-molded portion formed of resin so constructed that the electronic components are covered therewith; a convex connector formed by an exposed portion of the resin-molded portion and provided with metal terminals so as to be connectable to a concave connector, comprising the steps of: preparing a circuit board that has a convex connector at an end thereof with the metal terminals extending along at least one surface of the circuit board and the electronic components mounted on the surface thereof; preparing two molds so as to form a cavity comprising a first portion corresponding to the outside shape of the resin-molded portion and a second portion in which the convex connector is disposed; sandwiching the circuit board between the two molds; and injecting resin into the cavity through a resin injection portion formed between the two molds; and wrapping an elastic sealing member around and at a position on the resin-molded portion to press against a wall of a concave portion of the concave connector for sealing the metal terminals and minimize transmission of undesirable force or vibration to the metal terminals.