USS Sapphire (PYc-2) of the war, "Sapphire" was designated for inactivation. On 19 September 1945, the boat departed New London and proceeded to Charleston, South Carolina, where she was decommissioned on 29 October 1945. Struck from the Navy List on 13 November of the same year, she was transferred to the Maritime Commission for disposal through sale on 3 September 1946. USS Sapphire (PYc-2) The second USS "Sapphire" (PYc-2) was a patrol boat in the United States Navy. Originally a private yacht and later a navy training vessel, "Sapphire" was built in 1929, and named "Margo" by George Lawley & Son, Neponset, Massachusetts.
Silicon on sapphire Silicon on sapphire Silicon on sapphire (SOS) is a hetero-epitaxial process for integrated circuit manufacturing that consists of a thin layer (typically thinner than 0.6 µm) of silicon grown on a sapphire (AlO) wafer. SOS is part of the Silicon on Insulator (SOI) family of CMOS technologies. Typically, high-purity artificially grown sapphire crystals are used. The silicon is usually deposited by the decomposition of silane gas (SiH) on heated sapphire substrates. The advantage of sapphire is that it is an excellent electrical insulator, preventing stray currents caused by radiation from spreading to nearby circuit elements. SOS faced early challenges in