Patent ID: 7871151

Claim:
A liquid discharge head comprising: a discharge element including, on a front surface thereof, a discharge port adapted to discharge a liquid and, on a second surface thereof, a liquid supply port communicating with the discharge port, an electric connection terminal, and a heat transfer terminal; and a supporting member including a first surface, a second surface, an electric connection terminal portion formed on the first surface of the supporting member and electrically connected to the electric connection terminal, a heat transfer terminal junction portion formed on the first surface of the supporting member and connected to the heat transfer terminal to transfer heat, a plurality of through-holes extending between the first surface and the second surface of the supporting member, a partition wall portion separating the through-holes from each other, and a heat transfer path connected to the heat transfer terminal junction portion, the supporting member supporting the discharge element on the first surface of the supporting member, wherein the through-holes communicate with the liquid supply port and are formed such that an interval between the through-holes increases according to a direction from the first surface to the second surface of the supporting member, and wherein a volume of the heat transfer path increases according to the increase of the interval.