Al/Si Interface Characteristics Formed by Partially Ionized Beam Deposition at 2.5Kv

1987 ◽  
Vol 101 ◽  
Author(s):  
J. Wong ◽  
C. Lam ◽  
T.-M. Lu
Keyword(s):  
Thin Film ◽  
Frequency Dependence ◽  
Schottky Diodes ◽  
Deposition Technique ◽  
Bias Potential ◽  
Interface Characteristics ◽  
Junction Diode ◽  
Partially Ionized ◽  
Al Thin Film ◽  
Beam Deposition

ABSTRACTPartially ionized beam (PIB) deposition technique was used to deposit Al thin film on Si(n) substrate. The fabricated Schottky diodes showed an anomalous C-V characteristics for the Al films deposited with a bias potential equal to 2.5kV. The 1/C2 vs. V plot showed a drastic decrease in the slope as compared to the diodes deposited without the bias potential. Further measurements showed a frequency dependence in the C-V characteristics. This anomalous C-V characteristics can be explained by the formation of a p-n junction diode underneath the Si surface. A model of self-ion implantation which explains the formation of this surface p-layer on the Si(n) substrate is proposed and tested.

Preparation of New High-TcSuperconducting Oxide Bi-Sr-Ca-Cu-O Thin Film by Electron Beam Deposition Technique

1988 ◽  
Vol 27 (Part 2, No. 4) ◽  
pp. L625-L627 ◽  
Author(s):  
Kenichi Kuroda ◽  
Masashi Mukaida ◽  
Masafumi Yamamoto ◽  
Shintaro Miyazawa
Keyword(s):  
Thin Film ◽  
Electron Beam ◽  
Deposition Technique ◽  
Electron Beam Deposition ◽  
Beam Deposition

Electromigration in Al/SiO2films prepared by a partially ionized beam deposition technique

1989 ◽  
Vol 54 (24) ◽  
pp. 2443-2445 ◽  
Author(s):  
P. Li ◽  
A. S. Yapsir ◽  
K. Rajan ◽  
T.‐M. Lu
Keyword(s):  
Deposition Technique ◽  
Partially Ionized ◽  
Beam Deposition

Partially ionized beam deposition of oriented films

1989 ◽  
Vol 4 (2) ◽  
pp. 343-349 ◽  
Author(s):  
A. S. Yapsir ◽  
L. You ◽  
T. -M. Lu ◽  
M. Madden
Keyword(s):  
Room Temperature ◽  
Preferred Orientation ◽  
Deposition Technique ◽  
Drastic Reduction ◽  
Atom Ratio ◽  
Oriented Films ◽  
Partially Ionized ◽  
Fixed Bias ◽  
Orientation Growth ◽  
Beam Deposition

The microstructure of Al films deposited on SiO2 using the partially ionized beam (PIB) deposition technique is studied. It is shown that by employing less than 1% ions (ion-to-atom ratio) derived from the evaporated material and about 1–2 kV bias voltage at the substrate during deposition, one can grow highly (111) oriented Al films at room temperature. For a fixed bias potential, the value of the ion-to-atom ratio to achieve the optimum orientation effect is determined. At the optimum condition for the (111) preferred orientation growth, no significant enhancement in the grain size is observed. It is also found that a drastic reduction in the degree of the preferred orientation occurs when the films are deposited at a substrate temperature greater than 150 °C.

Growth of epitaxial Ag/Si films by the partially ionized beam deposition technique

1991 ◽  
Vol 69 (2) ◽  
pp. 773-777 ◽  
Author(s):  
T. C. Nason ◽  
L. You ◽  
G.‐R. Yang ◽  
T.‐M. Lu
Keyword(s):  
Deposition Technique ◽  
Partially Ionized ◽  
Si Films ◽  
Beam Deposition

Low‐temperature epitaxial growth of CoGe2(001)/GaAs(100) films using the partially ionized beam deposition technique

1996 ◽  
Vol 68 (13) ◽  
pp. 1817-1819 ◽  
Author(s):  
K. E. Mello ◽  
S. R. Soss ◽  
S. P. Murarka ◽  
T.‐M. Lu ◽  
S. L. Lee
Keyword(s):  
Low Temperature ◽  
Epitaxial Growth ◽  
Deposition Technique ◽  
Partially Ionized ◽  
Beam Deposition

Structural Characteristics of CoGe2 Alloy Films Grown Heteroepitaxially on GaAs(100) Substrates Using the Partially Ionized Beam Deposition Technique

1996 ◽  
Vol 427 ◽  
Author(s):  
K. E. Mello ◽  
S. P. Murarkak ◽  
S. L. Lee ◽  
T.-M. Lu
Keyword(s):  
Thin Films ◽  
Substrate Temperature ◽  
Ohmic Contact ◽  
Structural Characteristics ◽  
Deposition Technique ◽  
Ion Energy ◽  
Alloy Films ◽  
Partially Ionized ◽  
Beam Deposition

AbstractThe Partially ionized beam (PIB) deposition technique was used to deposit CoGe2 thin films heteroepitaxially on GaAs(100) substrates in a conventional vacuum. For the CoGe2(001)/GaAs(100) system, which leads to an Ohmic contact, a substrate temperature of 280°C and ∼1200 eV Ge+ ions are required. Reducing the ion energy or lowering the substrate temperature both produce a different orientation in the films. Films deposited at 280°C with a zero accelerating potential for the ions, and those deposited at 200°C with -1200 eV Ge+ ions result in a CoGe2(100)//GaAs(100) type orientation domination, leading to rectifying behavior.

Partially Ionized Beam Deposition of Thin Films

1989 ◽  
Vol 147 ◽  
Author(s):  
T.-M. Lu
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Surface Damage ◽  
Surface Interactions ◽  
Surface Cleaning ◽  
Film Properties ◽  
Surface Ordering ◽  
Partially Ionized ◽  
Enhanced Surface ◽  
Beam Deposition

AbstractIt has been shown recently that using less than a few percent of self-ions, i.e., ions derived from the deposition material itself, (partially ionized beam (PIB) deposition), one can dramatically modify thin film properties. In this paper we discuss phenomena such as surface cleaning, enhanced surface ordering, and ion-induced surface damage associated with PIB-surface interactions. PIB metal deposition has been emphasized.

Reduction of interface hydrogen content by partially ionized beam deposition technique

1988 ◽  
Vol 52 (23) ◽  
pp. 1962-1964 ◽  
Author(s):  
A. S. Yapsir ◽  
T.‐M. Lu ◽  
W. A. Lanford
Keyword(s):  
Hydrogen Content ◽  
Deposition Technique ◽  
Partially Ionized ◽  
Beam Deposition
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