End face light emitting type light emitting diode

Details End face light emitting type light emitting diode End face light emitting type light emitting diode

1997-10-01

1999-09-21

Crane, Sara

Active solid-state devices (e.g., transistors, solid-state diode

Incoherent light emitter structure

Plural light emitting devices

257 96, 257 97, H01L 3300

Patent

active

059557486

ABSTRACT:
An end facet light emitting type LED has a slanted light emitting side wall relative to a substrate surface. A method for manufacturing end facet light emitting type light emitting devices prevents the pn-junction regions of the devices from being damaged while a semiconductor wafer is diced to separate light emitting devices from one another. A recess is formed on the semiconductor wafer having a depth which is deeper than the pn-junction. A portion to be cut during dicing of the wafer is vertically and horizontally separated from the pn-junction regions, so that if cracks occur when the wafer is diced, the cracks do not affect the light emitting characteristics of the devices.

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patent: 5404031 (1995-04-01), Sasaki et al.
patent: 5498883 (1996-03-01), Lebby et al.

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