NASA/GRC has a requirement to purchase 4H-SiC high purity semi-insulating wafers with epitaxial layers. NASA/GRC intends to purchase the items from Cree, Incorporated, 4600 Silicon Drive, Durham, NC 27703-8475. The properties and specifications of the wafers we wish to purchase from this vendor must be consistent with the previous purchases. A source other than Cree would jeopardize years of electrical characterization of the Cree wafer. It would also require that we conduct a comprehensive characterization of the new wafer, which would take years to accomplish. The Government intends to acquire a commercial item using FAR Part 12 and the Simplified Acquisition Procedures set forth in FAR Part 13. The Sole Source is under the authority of FAR reference 13.106-1(b). Interested organizations may submit their capabilities and qualifications to perform the effort in writing to the identified point of contact not later than 4:30 p.m. local time on September 24, 2012. Such capabilities/qualifications will be evaluated solely for the purpose of determining whether or not to conduct this procurement on a competitive basis. A determination by the Government not to compete this proposed effort on a full and open competition basis, based upon responses to this notice, is solely within the discretion of the government. Oral communications are not acceptable in response to this notice. NASA Clause 1852.215-84, Ombudsman, is applicable. The Center Ombudsman for this acquisition can be found at http://prod.nais.nasa.gov/pub/pub_library/Omb.html .

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