Invention Grant
- Patent Title: Photolithographic methods of producing structures in radiation-emitting semiconductor components
- Patent Title (中): 在辐射发射半导体部件中制造结构的光刻方法
-
Application No.: US14460856Application Date: 2014-08-15
-
Publication No.: US09466487B2Publication Date: 2016-10-11
- Inventor: Bernd Böhm , Sebastian Hoibl
- Applicant: OSRAM Opto Semiconductors GmbH
- Applicant Address: DE
- Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee Address: DE
- Agency: DLA Piper LLP (US)
- Priority: DE102013108876 20130816
- Main IPC: H01L21/033
- IPC: H01L21/033 ; H01L33/00 ; H01L33/22 ; H01L33/20 ; H01L21/027

Abstract:
A photolithographic method which produces a structure in a radiation-emitting semiconductor component by providing a semiconductor wafer having a semiconductor layer sequence, applying a first photoresist layer to the semiconductor wafer, providing a mask, and arranging the mask relative to the coated semiconductor wafer, exposing the first photoresist layer and imaging the mask in the first photoresist layer, arranging the mask or a different mask relative to the semiconductor wafer at another position different from a first position and again exposing the first photoresist layer and imaging the mask in the first photoresist layer or applying a second photoresist layer to the first photoresist layer, arranging the mask or a different mask relative to the semiconductor wafer at a second position, and exposing the second photoresist layer and imaging the mask in the second photoresist layer, forming a patterned photoresist layer and patterning the semiconductor wafer.
Public/Granted literature
- US20150050765A1 PHOTOLITHOGRAPHIC METHODS OF PRODUCING STRUCTURES IN RADIATION-EMITTING SEMICONDUCTOR COMPONENTS Public/Granted day:2015-02-19
Information query
IPC分类: