Patent ID: 8759123

Claim:
A method of manufacturing an LED lamp, the method comprising: mounting an LED element on a substrate; preparing a glass sealing member that includes a concave portion to house the LED element; and sealing the LED element by the glass sealing member, wherein, in the sealing, the glass sealing member is arranged so that a forming surface of the concave portion faces the LED element, and the glass sealing member is bonded to the substrate by a thermal compression bonding such that the forming surface of the concave portion is made along the LED element so as to eliminate substantially a gap between the glass sealing member and the LED element, and wherein, in the sealing the glass sealing member, the thermal compression bonding is conducted at a temperature T (° C.) to meet an expression (1) below: Tg<T≦Ap+ 30° C. (1) where Tg (° C.) is a glass-transition temperature of the sealing member and Ap (° C.) is a yielding point temperature of the sealing member.