Fluorescent material for packaging optical devices

Details Fluorescent material for packaging optical devices Fluorescent material for packaging optical devices

2001-01-12

2002-06-04

Koslow, C. Melissa (Department: 1755)

Compositions

Inorganic luminescent compositions with organic...

C252S301360

Reexamination Certificate

active

06398983

ABSTRACT:

BACKGROUND OF THE INVENTION
(1) Field of the Invention
This invention relates to optical semiconductor device package, particularly to the packaging material for fluorescent semiconductor devices,
(2) Brief Description of Related Art
The prior art method for implementing a fluorescent semiconductor device is to coat the optical device with a mixture of two liquid materials, liquid epoxy and anhydride, and a fluorescent powder in a fixed ratio (X
1
:Y
1
:Z
1
) as shown in
FIG. 1
to yield a “uniform liquid fluorescent material”. For application, the uniform liquid fluorescent is used to coat the surface of the optical chip. After the fluorescent liquid is solidified, the optical chip can emit a “colorless light” when energized, because the light energy from the chip can excite the electronics in the molecules of the fluorescent material.
Such a procedure is inconvenient to use, because it involves the mixing of two liquid materials and a powder prior to application.
SUMMARY OF THE INVENTION
An object of this invention is to use a single solid state resin material to replace prior art the liquid state mixing of fluorescent material. Another object is to simplify the packaging procedure in applying the fluorescent material on an optical semiconductor chip.
These objects are achieved by using two kinds of solid state powders: the epoxy powder and the fluorescent powder.


REFERENCES:
patent: 8-3550 (1996-01-01), None

Affiliated with

Also associated with

Rating

Fluorescent material for packaging optical devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluorescent material for packaging optical devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluorescent material for packaging optical devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2952814