Search Results - "Heedon Hwang, Heedon Hwang"
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Shapes of InAs quantum dots on InGaAs∕InP
Published in Applied physics letters (27-12-2004)“…InAs self-assembled quantum dots were grown on InGaAs lattice-matched on InP by metalorganic chemical vapor deposition. The facet formation on the dot was…”
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Possibility of Two-Step As-Desorption from (001) InP Using Surface Photoabsorption
Published in Japanese Journal of Applied Physics (15-09-2001)“…We present an in situ investigation of As-desorption from the (001) InP surface using surface photoabsorption (SPA). At 470°C, we observed that the SPA signals…”
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3
Gate oxide effect on wafer level reliability of next generation dram transistors
Published in 2010 IEEE International Reliability Physics Symposium (01-05-2010)“…Wafer level reliability (WLR) issues of DRAM cell and peripheral transistors are discussed. Since the 70 nm technology node, recessed transistors have been…”
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Conference Proceeding -
4
Analysis of P adsorption and desorption on the (001) InP surface using surface photoabsorption
Published in Journal of vacuum science & technology. A, Vacuum, surfaces, and films (01-09-1999)“…We present an in situ study of P desorption and adsorption on the (001) InP surface using surface photoabsorption (SPA). The SPA spectra show three peaks at…”
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5
Effects of growth interruption on the evolution of InAs/InP self-assembled quantum dots
Published in Journal of electronic materials (01-05-2000)“…We investigated the change in the structural and optical properties of InAs/InP quantum structures during growth interruption (GI) for various times and under…”
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6
Analysis of Surface Photoabsorption Spectra of (001) InP Surfaces
Published in Japanese Journal of Applied Physics (01-09-1999)“…We present an in situ surface photoabsorption (SPA) study on surface structures of (001) InP surfaces. Conventional subtraction spectra of SPA on (001) InP…”
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7
A Printable Form of Single-Crystalline Gallium Nitride for Flexible Optoelectronic Systems
Published in Small (Weinheim an der Bergstrasse, Germany) (01-12-2005)“…Fine print: The fabrication of freestanding micro/nanoelements of single‐crystalline GaN and a simple process of printing them onto plastic substrates are…”
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Measurements of thermally induced nanometer-scale diffusiondepth of Pt ∕ Ti ∕ Pt ∕ Au gate metallization on InAlAs ∕ InGaAs high-electron-mobility transistors
Published in Applied physics letters (28-11-2005)“…Platinum diffusion in InAlAs was investigated utilizing a Pt ∕ Ti ∕ Pt ∕ Au gate contact on an In 0.52 Al 0.48 As ∕ In 0.53 Ga 0.47 As ∕ InP…”
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Measurements of thermally induced nanometer-scale diffusion depth of Pt∕Ti∕Pt∕Au gate metallization on InAlAs∕InGaAs high-electron-mobility transistors
Published in Applied physics letters (05-12-2005)“…Platinum diffusion in InAlAs was investigated utilizing a Pt∕Ti∕Pt∕Au gate contact on an In0.52Al0.48As∕In0.53Ga0.47As∕InP high-electron-mobility transistor…”
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10
Effects of thin GaAs cap layer on optical properties of InAs/InGaAs/InP quantum dot
Published in 2003 International Symposium on Compound Semiconductors (2003)“…We have studied the influence of thin GaAs capping layer (5-10 monolayers) on optical properties of InAs QDs. After the growth of thin GaAs capping layer, the…”
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Conference Proceeding -
11
Optical properties of Si-doped InAs/InP quantum dots
Published in Current applied physics (01-10-2003)“…InAs quantum dots (QDs) were grown on InP substrates by low pressure-metalorganic chemical vapor deposition. Disilane (Si 2H 6) was used as an n-type dopant…”
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12
Real time in situ monitoring of stacked InAs/InP quantum dots by spectral reflectance
Published in Journal of crystal growth (01-02-2003)“…InAs/InP quantum dot (QD) stacks were grown by low-pressure metalorganic chemical vapor deposition and the entire growth procedure was monitored by real time…”
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13
On astigmatism of multi-beam optical stress sensor mounted at large incident angle
Published in Journal of crystal growth (02-01-2004)“…When multi-beam optical stress sensor (MOSS) system is mounted at a large incident angle ( α), despite an improvement of the resolution in the measurements, it…”
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14
Shape change of InAs self-assembled quantum dots induced by As/P exchange reaction
Published in Thin solid films (01-12-1999)“…Self-assembled InAs quantum dots (SAQDs) were grown on InP and on lattice-matched InGaAs buffer layers by metalorganic chemical vapor deposition (MOCVD). The…”
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15
In situ analysis of surface photoabsorption spectra during InP ALE in metal organic chemical vapor deposition
Published in Microelectronic engineering (2000)“…In situ monitoring of InP atomic layer epitaxy (ALE) by surface photoabsorption (SPA) was performed in low-pressure metal organic chemical vapor deposition…”
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16
In-situ observation of As/P exchange reaction and As carryover in InAs/InP quantum well structures by surface photoabsorption
Published in 1998 Conference on Optoelectronic and Microelectronic Materials and Devices. Proceedings (Cat. No.98EX140) (1998)“…InAs/InP quantum well structures were grown by low pressure metal organic chemical vapor deposition. During the growth, the As/P exchange reaction and As…”
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Conference Proceeding