Patent ID: 11936163
Assignee: CHANGCHUN INSTITUTE OF OPTICS, FINE MECHANICS AND PHYSICS
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 9:
10. Method according to claim 1
wherein said trench (TR) defines a third portion (M3) of the mesa (M) in addition to said first and second portion (M1, M2), d
wherein there are a plurality of first unoxidized apertures (40) in the first portion (M1) that are oriented along a first direction (A1);
wherein there are a plurality of second unoxidized apertures (40) in the second portion (M2) that are oriented along a second direction (A2);
wherein there are a plurality of third unoxidized apertures (40) in the third portion (M3) that are oriented along a third direction (A3); and
wherein the first, second and third directions differ.