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

Claim 7:
8. The laser diode according to claim 7, further comprising:
a second metal layer which is formed directly on the surface of the first metal layer; and
a third metal layer which is formed directly on the surface of the second metal layer;
wherein the second metal layer and the third metal layer are formed with large wettability material having solder wettability which is larger than solder wettability of the solder-contact preventing part;
wherein the solder-bonding pad part is formed with a part of the third metal layer, being formed on the second metal layer, and the solder-contact preventing part is formed on the second metal layer, in approximately U-figure shape in a plan view, so as to surround the solder-bonding pad part.