Patent ID: 11887638
Assignee: SAE MAGNETICS (H.K.) LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A laser diode comprising:
an electrode pad layer, being connected to an electrode; and
an outer surface in which the electrode pad layer is formed;
wherein the electrode pad layer comprises a solder-bonding pad part, which is formed inside of a peripheral end part of the outer surface; and a solder-contact preventing part, which is formed between the solder-bonding pad part and the peripheral end part;
wherein the solder-contact preventing part is formed with small wettability material having solder wettability which is smaller than solder wettability of the solder-bonding pad part;
wherein the solder-bonding pad part and the solder-contact preventing part are formed so that a pad height, being a height from the outer surface to a surface of the solder-bonding pad part, is larger than a preventing height, being a height from the outer surface to a surface of the solder-contact preventing part.