- Model ASF - Sapphire Growth Systems



GT Advanced Technologies’ ASF sapphire furnace produces high-quality, large-area sapphire substrates for applications that demand the highest grade sapphire material such as high brightness LEDs, consumer electronics and industrial applications.

The sapphire material produced in the ASF furnace is grown in a low thermal gradient, low stress environment that consistently produces high quality material ideally suited for high brightness HB LED applications and other specialty industrial markets. The ASF provides a low-risk path to high volume sapphire production and a high return on your investment.

  • 40+ years of proven sapphire material production
  • Flexible crucible geometry and charge size to meet a wide range of customer requirements
  • Highly automated growth process with no moving parts for low cost, low risk operation
  • East seeding process
  • Fast A-axis, bottom-up growth producing high quality, low stress sapphire material
  • Scalable architecture offers investment protection

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