Paper
22 May 2015 20-inch diameter CHES® sapphire boules
Chandra P. Khattak, Joshua Filgate, Raj Shetty, C. Richard Schwerdtfeger, Saurabh Ullal
Author Affiliations +
Abstract
An automated controlled heat extraction system (CHES)® has been developed to produce 300 kg, 500 mm diameter sapphire boules. The versatile process allows production of boules in a-, r- or c- orientations. The technological advancements come with major cost reductions making sapphire for consumer electronics, LEDs and large optical windows a reality. In addition, these features allow large scale production with a fast ramp rate.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chandra P. Khattak, Joshua Filgate, Raj Shetty, C. Richard Schwerdtfeger, and Saurabh Ullal "20-inch diameter CHES® sapphire boules", Proc. SPIE 9453, Window and Dome Technologies and Materials XIV, 945305 (22 May 2015); https://doi.org/10.1117/12.2180647
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Sapphire

Light emitting diodes

Control systems

Crystals

Cell phones

Consumer electronics

Mobile devices

RELATED CONTENT

Large area bow free n+ GaN templates by HVPE for...
Proceedings of SPIE (March 08 2014)
Progress and challenges in GaN-on-Si LEDs
Proceedings of SPIE (March 08 2016)
Highly efficient InGaN GaN blue LEDs on large diameter Si...
Proceedings of SPIE (September 23 2011)
Highly efficient InGaN GaN blue LED on 8 inch Si...
Proceedings of SPIE (February 27 2012)
GaN substrates by HVPE
Proceedings of SPIE (February 13 2008)

Back to Top