Sae Magnetics (h.k.) Limited

Kang Gao

Ryuji Fujii

Seiichi Takayama

Ryo Hosoi

Yasutoshi Fujita

Yasuhiro Konakawa

The laser diode includes an electrode pad layer, being connected to an electrode, and an outer surface in which the electrode pad layer is formed. The electrode pad layer includes a solder-bonding pad part and a solder-contact preventing part. 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. 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.

Laser diode, thermally assisted magnetic head, head gimbal assembly, hard disk drive and method of manufacturing a head gimbal assembly

A semiconductor laser includes an active layer which emits laser light and cladding layers being formed so as to sandwich the active layer. The active layer includes a quantum dot layer including a plurality of quantum dots, which respectively confine movements of carriers in the three-dimensional directions. The laser radar device includes a light projection part which projects laser light and a light receiving part which receives reflected light of the laser light. The light projection part includes the semiconductor laser and a scanner which reflects the laser light, emitted from the semiconductor laser, to form a scanning laser light.

Semiconductor laser and laser radar device having the semiconductor laser

A light source-unit includes a laser diode, a sub-mount which the laser diode is joined. The laser diode includes an optical generating layer including an active layer which emits laser-light and cladding layers being formed so as to sandwich the active layer. The active layer includes a quantum dot layer including a plurality of quantum dots, which respectively confine movements of carriers in the three-dimensional directions.

Growing community of inventors

Hong Kong, China

Kang Gao