Liquid discharge head substrate, liquid discharge head, liquid discharge apparatus, and manufacturing method of liquid discharge head substrate

A liquid discharge head substrate comprising:

• a substrate;
• a plurality of liquid discharge elements arranged on the substrate along a first direction;
• a plurality of opening portions provided in the substrate along the first direction;
• a plurality of first wiring patterns passing between corresponding opening portions adjacent to each other among the plurality of opening portions and connected to corresponding liquid discharge elements among the plurality of liquid discharge elements;
• and
• a plurality of second wiring patterns arranged along the first direction,
• wherein the liquid discharge head substrate includes a connected region arranged between first wiring patterns adjacent to each other among the plurality of first wiring patterns and extending in a second direction crossing the first direction,
• in the connected region, each of the plurality of second wiring patterns has a wide portion which is thicker than a peripheral portion which is arranged in a peripheral region adjacent to the connected region, and
• the wide portions are arranged along the second direction.