At present, the LED product with Epoxy package normally with weakness Moisture Sensitivity feature. As Taiwan LED industry example, our average ambient humidity is approximately 50%, it’s easy and quick for the material to get moisture after we open the pack and exposure it at SMT plant. Once the material get moisture will cause the gap between epoxy and gold wire during the reflow process at high temperature and also result to fail because the gap of LED chip and silver glue open. To prevent that, the humidity control for plant and the material storage is especially important. Due to the different thermal expansion coefficient characters of stress for epoxy resin and frame will cause Lead frame and epoxy Delaminating, and to increase adhesive of glue and frame, this essay will mainly focus on the different proportions of glue and baking temperature analysis to decrease influence of stress during producing process.