IP Library Granted Patent US 12,009,460
Granted Patent B2
US 12,009,460 · App. 16/768,515 · Granted Jun 11, 2024

Method for producing a conversion element, and conversion element

Inventor: Luca Haiberger (Regensburg, DE)
Assignee: Osram OLED GmbH
H01L33/505H01L33/60H01L2933/0041H01L2933/0058
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Quick Facts
Patent No.
US 12,009,460
App. No.
16/768,515
Granted
Jun 11, 2024
Kind
B2
Abstract

The invention relates to a method for producing a conversion element having the following steps: providing a frame having an opening; applying a sacrificial layer at least to a side surface of the at least one opening; applying a reflective layer to the sacrificial layer; introducing a conversion material into the at least one opening, the conversion material covering the reflective layer; and removing the sacrificial layer and the frame.

Claims (21)

1. A method for producing a conversion element, comprising:

providing a frame having at least one opening,

applying a sacrificial layer at least to a side surface of the at least one opening,

applying a reflective layer to the sacrificial layer,

introducing a conversion material into the at least one opening, wherein the conversion material covers the reflective layer,

chemically etching the sacrificial layer to remove the sacrificial layer, and

removing the fame, wherein the reflective layer terminates flush with a bottom surface and a top surface of the conversion material.

2. The method as claimed in the preceding claim , wherein the side surface of the at least one opening has a chamfer.

3. A method for producing an optoelectronic semiconductor component, wherein

the method for producing the conversion element as claimed in claim 1 is carried out, and

before introducing the conversion material, a radiation-emitting semiconductor chip is introduced into the at least one opening.

4. The method as claimed in the preceding claim , wherein the conversion material introduced partly surrounds the radiation-emitting semiconductor chip.

5. A method for producing a conversion element, which is able to be applied on a radiation-emitting semiconductor chip, comprising:

providing a frame having at least one opening,

applying a sacrificial layer at least to a side surface of the at least one opening,

applying a reflective layer to the sacrificial layer,

introducing a conversion material into the at least one opening, wherein the conversion material covers the reflective layer,

chemically etching the sacrificial layer to remove the sacrificial layer, and

removing the frame.

6. The method of claim 5 , further comprising:

introducing the radiation-emitting semiconductor chip into the at least one opening.

Assignments (3)
MERGER Recorded Feb 17, 2026
From: OSRAM OLED GMBH
To: AMS-OSRAM INTERNATIONAL GMBH
Reel/Frame 074881/0104 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 10, 2020
From: HAIBERGER, LUCA
To: OSRAM OPTO SEMICONDUCTORS GMBH
Reel/Frame 054603/0311 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 10, 2020
From: OSRAM OPTO SEMICONDUCTORS GMBH
To: OSRAM OLED GMBH
Reel/Frame 054603/0411 →