Scalable LED with improved current spreading structures

Details Scalable LED with improved current spreading structures Scalable LED with improved current spreading structures

2005-04-26

2005-04-26

Thomas, Tom (Department: 2815)

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

Incoherent light emitter structure

With housing or contact structure

C257S091000, C257S094000

Reexamination Certificate

active

06885036

ABSTRACT:
An LED with improved current spreading structures that provide enhanced current injection into the LED's active layer, improving its power and luminous flux. The current spreading structures can be used in LEDs larger than conventional LEDs while maintaining the enhanced current injection. The invention is particularly applicable to LEDs having insulating substrates but can also reduce the series resistance of LEDs having conductive substrates. The improved structures comprise conductive fingers that form cooperating conductive paths that ensure that current spreads from the p-type and n-type contacts into the fingers and uniformly spreads though the oppositely doped layers. The current then spreads to the active layer to uniformly inject electrons and holes throughout the active layer, which recombine to emit light.

REFERENCES:
patent: 5972730 (1999-10-01), Saito et al.
patent: 6107644 (2000-08-01), Shakuda et al.
patent: 6201264 (2001-03-01), Khare et al.
patent: 6278173 (2001-08-01), Kobayashi et al.
patent: 6445007 (2002-09-01), Wu et al.
patent: 6521914 (2003-02-01), Krames et al.
patent: 6610995 (2003-08-01), Nakamura et al.
patent: 6710374 (2004-03-01), Wirth
patent: 6781147 (2004-08-01), Chen et al.
patent: 6815727 (2004-11-01), Kurahashi et al.

Affiliated with

Also associated with

Rating

Scalable LED with improved current spreading structures does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scalable LED with improved current spreading structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scalable LED with improved current spreading structures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3396370