Stack molding machine

A stack molding machine comprising:

• an upper mold having formed therein a first runner serving as a path of a resin material;
• a first intermediate plate provided under and combined with the upper mold, and having formed therein a first molding connected to the first runner to mold at least a portion on a first substrate placed under the first intermediate plate;
• a first injection plate provided under the first intermediate plate, and having formed therein a third runner serving as a path of the resin material;
• a second intermediate plate provided under the first injection plate, and having formed therein a second molding connected to the third runner to mold at least a portion on a second substrate placed under the second intermediate plate;
• a second injection plate provided under the second intermediate plate, and having formed therein a fourth runner serving as a path of the resin material;
• a third intermediate plate provided under the second injection plate, and having formed therein a third molding connected to the fourth runner to mold at least a portion on a third substrate placed under the third intermediate plate;
• and
• a lower mold provided under and combined with the third intermediate plate,
• wherein the upper mold comprises a first gate connected to the first molding at an end of the first runner,
• wherein the first injection plate comprises a third gate connected to the second molding at an end of the third runner, and
• wherein the second injection plate comprises a fourth gate connected to the third molding at an end of the fourth runner.