NASA/GRC has a requirement for the following:1. Three 4H-SiC wafer shall be 3" dia., 8a off-axis, less than 15 cm-2 micropipedensity, of high-purity and semi-insulating (resistivity >105 ohm-cm). Both sidespolished to epitaxial growth standard. On the Si face shall be CVD grown 1 m n-type4H-SiC epilayer that is nitrogen doped greater 1 x 1019 cm-3.2. Three 4H-SiC wafer shall be 3" dia., 8a off-axis, less than 15 cm-2 micropipedensity, of high-purity and semi-insulating (resistivity >105 ohm-cm). Both sidespolished to epitaxial growth standard. On the Si face shall be CVD grown 0.5 m n-type4H-SiC epilayer that is nitrogen doped greater 1 x 1019 cm-3.3. Two n-type 4H-SiC wafer shall be 3" dia., 4X off-axis, .015-.028 ohm-cm, lowmicropipe density (<=15 cm-2). Both sides polished to epitaxial growth standard. NASA/GRC intends to purchase the items from Cree, Inc. The properties of the wafersbeing purchased from Cree Inc. need to be consistent with the previous wafers purchasedon past orders. Any attempt to procure these wafers from a source other than Cree wouldjeopardize years of electrical characterization of the Cree wafers. It would alsorequire that we conduct a comprehensive characterization of the new wafers which couldtake a couple of years. This would not be cost effective either in time or money to theGovernment.The Government intends to acquire a commercial item using FAR Part 12 and the SimplifiedAcquisition Procedures set forth in Far Part 13.The Sole Source is under the authority of Far Reference 13.106-1(b)1.Interested organizations may submit their capabilities and qualifications to perform theeffort in writing to the identified point of contact not later than close of business onAugust 9, 2011. Such capabilities/qualifications will be evaluated solely for thepurpose 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 opencompetition basis, based upon responses to this notice, is solely within the discretionof the government.Oral communications are not acceptable in response to this notice. NASA Clause 1852.215-84, Ombudsman, is applicable. The installation Ombudsman is KirkD. Seablom ([email protected]).

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