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.
Sapphire successful use of an insulating substrate upon which to deposit silicon to make the integrated circuits known as silicon on sapphire or "SOS"; now other substrates can also be used for the class of circuits known more generally as silicon on insulator. Besides its excellent electrical insulating properties, sapphire has high thermal conductivity. CMOS chips on sapphire are especially useful for high-power radio-frequency (RF) applications such as those found in cellular telephones, public-safety band radios, and satellite communication systems. "SOS" also allows for the monolithic integration of both digital and analog circuitry all on one IC chip, and the construction