Patent ID: 9263315
Filing Date: 2016-02-16
CPC Classification: H01L

Claim Text:
1. An LED resin-attached leadframe for mounting an LED element, comprising: a main body portion having a die pad for mounting the LED element, and a lead portion disposed in spaced relation to the die pad; a silver plating layer disposed on both of the die pad and the lead portion provided on the main body portion; an indium plating layer disposed on the silver plating layer, the indium plating layer serving as a reflection layer for reflecting light from the LED element; and an outer resin portion for reflecting light from the LED element surrounding a portion on which the LED element is mounted and filling the first area between the lead portion and the die pad, wherein, on the leadframe, a first region is provided between the outer resin portion surrounding the portion on which the LED element is mounted and the die pad, the first region not being covered with the reflection metal layer, wherein, on the leadframe, a second region is provided between the outer resin portion surrounding the portion on which the LED element is mounted and the lead portion, the second region not being covered with the reflection metal layer, wherein a trench for enhancing the close bondability between the leadframe and the outer resin portion is formed on the surface of the leadframe, the trench being located between the leadframe and the outer resin portion, and an inside of the trench and an area adjacent to the trench are not covered with the indium plating layer.