Development of Seeded Crystal Growth Processes for Large Area Semi-insulating Gallium Nitride Substrates

Period of Performance: 03/27/2007 - 09/27/2007

$100K

Phase 1 SBIR

Recipient Firm

Kyma Technologies, Inc.
8829 Midway West Road Array
Raleigh, NC 27617
Principal Investigator

Abstract

Kyma Technologies will explore aspects of seeded bulk GaN crystal growth to develop manufacturing processes for large area, high quality, semi-insulating GaN substrates for RF applications. Preparation of GaN seeds and growth thereon, including surface cleaning, off-cut angle and direction, growth initiation, and defect control will be investigated. The use of novel seeds and growth conditions will be examined to expand the crystal size during growth. These substrates are expected to improve the performance and reliability of GaN-based power amplifiers for X-band radar applications.