A contract exceeding $3 million for high temperature vertical and rotary reactors was awarded to Buffalo-based Harper International. The systems will be used by the East China Research Institute of Microelectronics in the production of advanced ceramic materials for applications requiring high thermal conductivity. Potential applications include high power LED lighting products and heat sink substrates.

Harper’s combination of vertical and rotary systems will perform a reaction on the client’s materials in a controlled gaseous atmosphere at temperatures up to 3632°F (2000°C). The graphite vertical furnace is designed to overcome the engineering challenges associated with such high temperatures and enable long furnace life, according to Harper. The system also incorporates technology to manage the flowability of the material, preventing bridging of the materials and increasing production uptime.

“These integrated series of furnaces will also include materials handling and engineering of material throughput through multiple process steps,” says Dr. Prasad Apte, director of technology at Harper International. “Our advanced sealing technology is also integral to delivering a robust system to the customer to control reaction and ensure long life of the furnace.”