Stain-etched silicon powder

  • US 7,244,513 B2
  • Filed: 02/21/2003
  • Issued: 07/17/2007
  • Est. Priority Date: 02/21/2003
  • Status: Expired due to Fees
First Claim
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1. A porous silicon powder comprising a plurality of silicon particles wherein only the outermost layers of said particles are porous, and wherein the outermost porous layers of said silicon particles comprise a thickness which ranges from at least about 1 angstrom to at most about 500 nanometers.

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