LEAD FRAME, METHOD OF MAKING THE SAME AND LIGHT RECEIVING/EMITTING DEVICE

摘要

A lead frame includes a base material, a reflection layer formed on a part of the base material, and a characteristic sustaining layer formed at least on the reflection layer to cover the reflection layer for sustaining a characteristic of the reflection layer by isolating the reflection layer from an outside. The reflection layer includes the characteristic to exhibit a predetermined reflectivity to light with a predetermined wavelength, and the characteristic sustaining layer prevents a decrease in the reflectivity of the reflection layer and transmits light reflected by the reflection layer.