Liquid discharge head and manufacturing method therefor

A liquid discharge head includes a recording element board provided with an energy generating element, an electrical wiring board to supply the energy generating element with an electrical signal, a supporting member to support the recording element board and the electrical wiring board, a plurality of wires to connect a plurality of terminals provided on the recording element board and a plurality of terminals provided on the electrical wiring board, and a sealing member. The plurality of wires include a plurality of transmitting wires contributory to transmission of the electrical signal and a plurality of non-transmitting wires non-contributory to the transmission and formed at a higher position than that of the transmitting wires from a surface of the supporting member which supports the recording element board. The sealing member is arranged to cover the plurality of transmitting wires as well only some parts of the plurality of non-transmitting wires.