Patent ID: 7152957

Claim:
A liquid ejection head for ejecting a liquid through an ejection orifice comprising: a recording device board including an energy generating device disposed thereon to generate energy for ejecting the liquid through the ejection orifice; an electrode pad disposed in a recess formed in the recording device board, the electrode pad being electrically communicated with the energy generating device; an electrode lead for supplying power to the electrode pad externally of the recording device board; a plurality of bumps on the recording device board for connecting the electrode pad and the electrode lead to establish electrical communication therebetween, wherein two adjacent bumps are communicated with each other through a communication groove and wherein at least one of the bumps is communicated with an outer peripheral edge of the recording device board; and a first sealing resin material filled in the recess to surround an electrically connected portion between the electrode pad and the bump without covering the bump.