US 11,817,677 B2
Vertical cavity surface emitting laser, head gimbal assembly, and fabrication process
Takuya Matsumoto, San Jose, CA (US); and Barry C. Stipe, San Jose, CA (US)
Assigned to Western Digital Technologies, Inc., San Jose, CA (US)
Filed by Western Digital Technologies, Inc., San Jose, CA (US)
Filed on Jun. 13, 2022, as Appl. No. 17/839,172.
Claims priority of provisional application 63/211,288, filed on Jun. 16, 2021.
Claims priority of provisional application 63/211,302, filed on Jun. 16, 2021.
Prior Publication US 2022/0407288 A1, Dec. 22, 2022
Int. Cl. H01S 5/04 (2006.01); G11B 13/04 (2006.01); H01S 5/183 (2006.01); H01S 5/42 (2006.01); G11B 13/08 (2006.01); G11B 5/48 (2006.01); H01S 5/042 (2006.01); H01S 5/0233 (2021.01); H01S 5/0237 (2021.01); H01S 5/02 (2006.01); G11B 5/00 (2006.01)
CPC H01S 5/18394 (2013.01) [G11B 5/4826 (2013.01); G11B 5/4866 (2013.01); G11B 13/08 (2013.01); H01S 5/0203 (2013.01); H01S 5/0233 (2021.01); H01S 5/0237 (2021.01); H01S 5/04256 (2019.08); H01S 5/04257 (2019.08); H01S 5/423 (2013.01); G11B 2005/0021 (2013.01); H01S 5/183 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A vertical cavity surface emitting laser (VCSEL) device, comprising:
a chip for mounting on a slider, the chip having a plurality of surfaces and a notch,
the plurality of surfaces comprising:
a bottom surface for facing the slider;
a top surface opposite the bottom surface; and
a plurality of side surfaces; and
two laser diode electrodes positioned in any combination on one or more of the plurality of surfaces,
wherein the notch forms a recessed edge spaced away from the bottom surface and toward the top surface, the notch having a shoulder, a side, and an angle (θ1) between the shoulder and the side, and wherein at least a portion of a first laser diode electrode is positioned on the shoulder and the side of the notch.