TITLE

Use of patterned laser liftoff process and electroplating nickel layer for the fabrication of vertical-structured GaN-based light-emitting diodes

AUTHOR(S)
Shui-Jinn Wang; Kai-Ming Uang; Shiue-Lung Chen; Yu-Cheng Yang; Shu-Cheng Chang; Tron-Min Chen; Chao-Hsuing Chen; Bor-Wen Liou
PUB. DATE
July 2005
SOURCE
Applied Physics Letters;7/4/2005, Vol. 87 Issue 1, p011111
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The fabrication process and performance characteristics of a vertical-structured GaN-based light-emitting diode (VM-LED) employing nickel electroplating and patterned laser liftoff techniques are presented. As compared to regular LED, the forward voltage drop of the VM-LED at 20–80 mA is about 10%–21% lower, while the light output power (Lop) is more than twice in magnitude. Especially, the Lop exhibits no saturation or degradation at an injection current up to 520 mA which is about 4.3 times higher than that of the regular one. Substantial improvements in the VM-LEDs performances are mainly attributed to the use of metallic substrate which results in less current crowding, larger effective area, and higher thermal conductivity.
ACCESSION #
18008387

 

Related Articles

  • Rinsing effect of alkaline electrolyzed water on nickel surfaces. Takenouchi, Toshikazu; Shin-Ichi Wakabayashi // Journal of Applied Electrochemistry;Oct2006, Vol. 36 Issue 10, p1127 

    The improvement in the surface cleanliness of electroplated nickel by rinsing in alkaline electrolyzed water (AEW) was determined. When the nickel plated sample was rinsed with the AEW, it was found that the amount of residual sulfate ion on the surface of a sample decreased approximately by...

  • NICKEL GROWING IN TREES. Gray, Theodore // Popular Science;Apr2006, Vol. 268 Issue 4, p78 

    This article presents an overview of electroplating car bumpers. Bumpers are stamped out of steel and electroplated with a thousandth of an inch of nickel--for rustproofing--followed by 65 billionths of an inch of mirror-bright chromium--for shine. Everything you see is chromium, yet it...

  • FABRICATION AND RESEARCH OF HIGH PURITY GERMANIUM DETECTORS WITH ABRUPT AND THIN DIFFUSION LAYER. Díaz García, A.; Cabal Rodriguez, A. E. // Nucleus;1996, Issue 21, p2 

    A different high purity germanium detector's fabrication method is described. A very thin diffusion film with an abrupt change of the type of conductivity are obtained. The fine diffusion layer thickness makes possibly their utilization in experimental systems in which all the data are...

  • MANGANESE ELECTRODEPOSITION FROM UREA-RICH ELECTROLYTE. Vuruna, Mladen; Bučko, Mihael; Radović, Ljubica; Bajat, Jelena B. // Macedonian Journal of Chemistry & Chemical Engineering;2015, Vol. 34 Issue 2, p277 

    Pure manganese coatings were prepared on the steel (AISI 4340) electrode by a non-conventional electrodeposition method, in the presence of 8 mol dm-3 of urea as a plating additive. The influence of urea on the electrodeposition of Mn was investigated by cyclic voltammetry. The morphology of the...

  • Formation and Applications of Bulk Glassy Alloys in Late Transition Metal Base System. Inoue, Akihisa; Shen, Baolong // AIP Conference Proceedings;2006, Vol. 832 Issue 1, p11 

    This paper reviews our recent results of the formation, fundamental properties, workability and applications of late transition metal (LTM) base bulk glassy alloys (BGAs) developed since 1995. The BGAs were obtained in Fe-(Al,Ga)-(P,C,B,Si), Fe-(Cr,Mo)-(C,B), Fe-(Zr,Hf,Nb,Ta)-B,...

  • High speed platinum deposition from a sulphamate formulation. Pushpavanam, Malathy // Journal of Applied Electrochemistry;Oct2006, Vol. 36 Issue 10, p1069 

    A sulphamate based bath was identified as being suitable for high-speed platinum plating. The bath offers current efficiency approaching 70–80% and the deposits are bright in appearance. SEM examination showed that the grains are fine and XRD analysis indicates their grain size to be at...

  • Electrodeposition and Characterization of Nanocrystalline Ni-Fe Alloys. Abdel-Karim, R.; Reda, Y.; Muhammed, M.; El-Raghy, S.; Shoeib, M.; Ahmed, H. // Journal of Nanomaterials;2011, p1 

    Nanocrystalline Ni-Fe deposits with different composition and grain sizes were fabricated by electrodeposition. Deposits with iron contents in the range from 7 to 31% were obtained by changing the Ni2+/Fe2+ mass ratio in the electrolyte. The deposits were found to be nanocrystalline with average...

  • Planar Technology for NDT-Ge X-Ray Microcalorimeters: Absorber Fabrication. Lo Cicero, U.; Arnone, C.; Barbera, M.; Collura, A.; Lullo, G.; Perinati, E.; Varisco, S. // AIP Conference Proceedings;12/16/2009, Vol. 1185 Issue 1, p112 

    We have investigated the electroplating process to deposit thick uniform films of tin on a Ge wafer coated with Spin-On Glass, in order to fabricate the absorbers for Ge microcalorimeter arrays. Here we discuss some technological details and propose two alternative metal bilayer to be used as...

  • The Influence of the Temperature of Calcination on the Leaching of Galvanic Sludge. Ozdemir, O. Dere; Piskin, S. // Journal of Solid Waste Technology & Management;Feb2010, Vol. 36 Issue 1, p394 

    Electroplating is most widely used technique for surface finishing of metals, ceramics and plastics, in which heavy metals such as zinc, copper, nickel, chromium and tin are commonly used. This industry generates enormous quantities of waste sludge that is called galvanic sludge. It is very...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics