A bonded assembly including: a first electronic component including a first substrate and a plurality of first electrodes disposed in a pressed area at a first height from a surface of the first substrate; a second electronic component including a second substrate and a plurality of second electrodes disposed at a second height from a surface of the second substrate, a second electrode overlapping with a corresponding first electrode to face the first electrode; a conductive bonding layer disposed between the first electrode and the second electrode overlapped with each other to bond the first electrode and the second electrode; and at least one spacer disposed between the first substrate and the second substrate to overlap the pressed area, the at least one spacer having a thickness that is greater than a value obtained by summing the first height and the second height.