Element housing package and mounting structure provided with same

An element housing package comprising:

• a base plate comprising, on a top surface thereof, a mounting region for mounting an element;
• a frame body disposed on the top surface of the base plate so as to surround the mounting region, the frame body comprising a through-hole;
• a connector disposed so as to pass through the through-hole of the frame body and to extend from an inside to an outside of the frame body;
• a pedestal member disposed on the top surface of the base plate so as to be positioned in the frame body;
• and
• a wiring base plate bonded to a top surface of the pedestal member with a first bonding member placed between the wiring base plate and the top surface of the pedestal member and connected to the connector;
• a thickness of the frame body along a through direction of the through-hole being greater than a thickness of the base plate in a longitudinal section along the through direction;
• a width of the pedestal member being greater than a height of the pedestal member in the longitudinal section along the through direction of the through-hole;
• and
• a side surface of the pedestal member being bonded to an inner surface of the frame body with a second bonding material placed between the side surface of the pedestal member and the inner surface of the frame body, and a bottom surface of the pedestal member is not bonded to the top surface of the base plate.