Method for partially coating laser diode facets

Details Method for partially coating laser diode facets Method for partially coating laser diode facets

1989-01-17

1990-03-20

Hearn, Brian E.

Fishing, trapping, and vermin destroying

148DIG95, 148DIG143, 372 49, 357 17, 437 80, 437 51, 437226, 437905, 437948, H01L 2120, H01L 21302

Patent

active

049101668

ABSTRACT:
Bars of integral laser diode devices cleaved from a wafer are placed with their p regions abutting and n regions abutting. A thin BeCu mask having alternate openings and strips of the same width as the end facets is used to mask the n region interfaces so that multiple bars can be partially coated over their exposed p regions with a reflective or partial reflective coating. The partial coating permits identification of the emitting facet from the fully coated back facet during a later device mounting procedure.

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patent: 4734380 (1988-03-01), Tsang
patent: 4751708 (1988-06-01), Jackson et al.
patent: 4788161 (1988-11-01), Goto et al.

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