Patent ID: 8319809

Claim:
A recording head comprising: a substrate; a conductive pattern layer formed on the substrate, and comprising: one or more first conductive portions; one or more second conductive portions, each paired with one of the first conductive portions; and an insulating portion insulating the first conductive portions and the second conductive portions; and one or more electrical resistance layers on the conductive pattern layer: each connected to one of the first conductive portions and one of the second conductive portions; and comprising a heat-generating region between the first conductive portions and the second conductive portions, wherein the maximum thickness of the insulating portion located under the heat-generating region is larger than a thickness of the first conductive portions and a thickness of the second conductive portions, wherein the insulating portion located under the heat-generating region is gradually thinned from the center of the heat-generating region toward the first conductive portion and the second conductive portion.