Invention Grant
- Patent Title: Substrate for epitaxy and method of preparing the same
- Patent Title (中): 用于外延的基板及其制备方法
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Application No.: US12213212Application Date: 2008-06-16
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Publication No.: US08110848B2Publication Date: 2012-02-07
- Inventor: Robert Dwilinski , Roman Doradzinski , Jerzy Garczynski , Leszek Sierzputowski , Yasuo Kanbara
- Applicant: Robert Dwilinski , Roman Doradzinski , Jerzy Garczynski , Leszek Sierzputowski , Yasuo Kanbara
- Applicant Address: PL Warsaw JP Anan-shi
- Assignee: Ammono Sp. z o.o.,Nichia Corporation
- Current Assignee: Ammono Sp. z o.o.,Nichia Corporation
- Current Assignee Address: PL Warsaw JP Anan-shi
- Agency: Smith Patent Office
- Priority: PL357696 20021211; PL357707 20021211; PL357708 20021211; PL357709 20021211
- Main IPC: C30B19/12
- IPC: C30B19/12

Abstract:
The substrate is used for opto-electric or electrical devices and comprises a layer of nitride grown by means of vapor phase epitaxy growth wherein both main surfaces of the nitride substrate are substantially consisting of non N-polar face and N-polar face respectively and the dislocation density of the substrate is 5×105/cm2 or less. Therefore, the template type substrate has a good dislocation density and a good value of FWHM of the X-ray rocking curve from (0002) plane less than 80, so that the resulting template type substrate is very useful for the epitaxy substrate from gaseous phase such as MOCVD, MBE and HVPE, resulting in possibility of making good opto-electric devices such as Laser Diode and large-output LED and good electric devices such as MOSFET.
Public/Granted literature
- US20080311393A1 Substrate for epitaxy and method of preparing the same Public/Granted day:2008-12-18
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