Journal
APPLIED PHYSICS LETTERS
Volume 93, Issue 3, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2961016
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A multiple substrate, microwave plasma-assisted chemical vapor deposition synthesis process for single crystal diamond (SCD) is demonstrated using a 915 MHz reactor. Diamond synthesis was performed using input chemistries of 6-8% of CH(4)/H(2), microwave input powers of 10-11.5 kW, substrate temperatures of 1100-1200 degrees C, and pressures of 110-135 Torr. The simultaneous synthesis of SCD over 70 diamond seeds yielded good quality SCD with deposition rates of 14-21 mu m/h. Multiple deposition runs totaling 145 h of deposition time added 1.8-2.5 mm of diamond material to each of the 70 seed crystals. (C) 2008 American Institute of Physics.
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