Patent ID: 9741915
Date: 2017-08-22
CPC Classifications: H01L

Claim:
1. A light emitting diode (LED) module, comprising: a substrate; a resist including a plurality of layers, above the substrate; and an LED element mounted above the resist, wherein a content percentage of at least one of a phenyl group, an ester bond, and a carbon double bond in an uppermost layer of the plurality of layers is lower than a content percentage of the at least one of the phenyl group, the ester bond, and the carbon double bond in an underlying layer of the plurality of layers, the underlying layer being located below the uppermost layer, the substrate includes a metal layer disposed under the resist, the resist includes an opening which exposes a portion of the metal layer, the opening includes a first opening in the underlying layer and a second opening in the uppermost layer, the second opening being located above and larger than the first opening, an edge of the second opening has a tapered portion inclined outwardly and upwardly, and the LED element is connected to the portion of the metal layer exposed by the opening, through wire bonding.