LIQUID DISCHARGE HEAD AND PRODUCTION METHOD OF LIQUID DISCHARGE HEAD

原文（中国語）

A liquid discharge head includes a discharge element substrate and an opening diameter conversion plate. The discharge element substrate and the opening diameter conversion plate are laminated in a first direction. A second opening width is larger than a first opening width in a second direction orthogonal to the first direction. A supply connection flow path configured to connect a first opening and a second opening is formed in the opening diameter conversion plate. A wall surface of the supply connection flow path includes an inclined portion inclining with respect to the first direction.