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Title: Schottky barrier detection devices having a 4H-SiC n-type epitaxial layer

Patent ·
OSTI ID:1334629

A detection device, along with methods of its manufacture and use, is provided. The detection device can include: a SiC substrate defining a substrate surface cut from planar to about 12.degree.; a buffer epitaxial layer on the substrate surface; a n-type epitaxial layer on the buffer epitaxial layer; and a top contact on the n-type epitaxial layer. The buffer epitaxial layer can include a n-type 4H--SiC epitaxial layer doped at a concentration of about 1.times.10.sup.15 cm.sup.-3 to about 5.times.10.sup.18 cm.sup.-3 with nitrogen, boron, aluminum, or a mixture thereof. The n-type epitaxial layer can include a n-type 4H--SiC epitaxial layer doped at a concentration of about 1.times.10.sup.13 cm.sup.-3 to about 5.times.10.sup.15 cm.sup.-3 with nitrogen. The top contact can have a thickness of about 8 nm to about 15 nm.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-06NA25396
Assignee:
University of South Carolina (Columbia, SC)
Patent Number(s):
9,515,211
Application Number:
14/444,140
OSTI ID:
1334629
Resource Relation:
Patent File Date: 2014 Jul 28
Country of Publication:
United States
Language:
English

References (3)

Plastic Mounting of Epitaxially Grown IV-VI Compound Semiconducting Films patent November 1973
SiC wafer, SiC semiconductor device, and production method of SiC wafer patent May 2004
High voltage, high temperature capacitor and interconnection structures patent December 2005