Patent ID: 8308280

Claim:
An inkjet recording head comprising: a recording element substrate including discharge ports facilitating discharging ink and a substrate provided with an energy generating element configured to generate energy to discharge ink through the discharge ports; an ink supply member configured to supply ink to the recording element substrate; and a support member provided between the ink supply member and the recording element substrate, the support member having at least two laminated layers, the at least two laminated layers being arranged between the ink supply member and the recording element and laminated in a direction along the ink supply member and the recording element substrate, wherein when the linear expansion coefficient of the ink supply member is denoted by α, the linear expansion coefficient of the recording element substrate is denoted by β, and the linear expansion coefficient of the support member's n-th layer, in which n is an integer equal to or larger than 2, from the recording element substrate is denoted by γ n , the condition of α>γ n > . . . γ 1 >β is satisfied.