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Title: Capacitance reduction for pillar structured devices

Abstract

In one embodiment, an apparatus includes: a first layer including a n+ dopant or p+ dopant; an intrinsic layer formed above the first layer, the intrinsic layer including a planar portion and pillars extending above the planar portion, cavity regions being defined between the pillars; and a second layer deposited on a periphery of the pillars thereby forming coated pillars, the second layer being substantially absent on the planar portion of the intrinsic layer between the coated pillars. The second layer includes an n+ dopant when the first layer includes a p+ dopant. The second layer includes a p+ dopant when the first layer includes an n+ dopant. The apparatus includes a neutron sensitive material deposited between the coated pillars and above the planar portion of the intrinsic layer. In additional embodiments, an upper portion of each of the pillars includes a same type of dopant as the second layer.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1356227
Patent Number(s):
9645262
Application Number:
14/555,463
Assignee:
Lawrence Livermore National Security, LLC
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Nov 26
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Shao, Qinghui, Conway, Adam, Nikolic, Rebecca J., Voss, Lars, Bhat, Ishwara B., and Harrison, Sara E. Capacitance reduction for pillar structured devices. United States: N. p., 2017. Web.
Shao, Qinghui, Conway, Adam, Nikolic, Rebecca J., Voss, Lars, Bhat, Ishwara B., & Harrison, Sara E. Capacitance reduction for pillar structured devices. United States.
Shao, Qinghui, Conway, Adam, Nikolic, Rebecca J., Voss, Lars, Bhat, Ishwara B., and Harrison, Sara E. Tue . "Capacitance reduction for pillar structured devices". United States. https://www.osti.gov/servlets/purl/1356227.
@article{osti_1356227,
title = {Capacitance reduction for pillar structured devices},
author = {Shao, Qinghui and Conway, Adam and Nikolic, Rebecca J. and Voss, Lars and Bhat, Ishwara B. and Harrison, Sara E.},
abstractNote = {In one embodiment, an apparatus includes: a first layer including a n+ dopant or p+ dopant; an intrinsic layer formed above the first layer, the intrinsic layer including a planar portion and pillars extending above the planar portion, cavity regions being defined between the pillars; and a second layer deposited on a periphery of the pillars thereby forming coated pillars, the second layer being substantially absent on the planar portion of the intrinsic layer between the coated pillars. The second layer includes an n+ dopant when the first layer includes a p+ dopant. The second layer includes a p+ dopant when the first layer includes an n+ dopant. The apparatus includes a neutron sensitive material deposited between the coated pillars and above the planar portion of the intrinsic layer. In additional embodiments, an upper portion of each of the pillars includes a same type of dopant as the second layer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 09 00:00:00 EDT 2017},
month = {Tue May 09 00:00:00 EDT 2017}
}

Works referenced in this record:

Three-dimensional boron particle loaded thermal neutron detector
patent-application, March 2013


Stress reduction for pillar filled structures
patent-application, July 2013


Three Dimensional Strained Semiconductors
patent-application, December 2013


High detection efficiency micro-structured solid-state neutron detector with extremely low leakage current fabricated with continuous p-n junction
journal, April 2013


Scalable large-area solid-state neutron detector with continuous p–n junction and extremely low leakage current
journal, November 2014

  • Huang, Kuan-Chih; Dahal, Rajendra; Lu, James J.-Q.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 763, p. 260-265
  • https://doi.org/10.1016/j.nima.2014.06.047

Self-powered micro-structured solid state neutron detector with very low leakage current and high efficiency
journal, June 2012