Patent ID: 7250323
Filing Date: 2007-07-31
Classification: H01L,Y02E

Abstract:
1. A method of making an energy conversion device, the method comprising: forming a plurality of pores within a substrate; forming a junction region within each of the plurality of pores, each of the junction regions has a depletion region and each of the plurality of pores defines an opening size in the substrate and a spacing from adjacent pores so that the depletion regions of each of the pores is at least substantially in contact with the depletion region of the pores which are adjacent; forming a first portion of one or more side walls of at least one of the pores with a declination angle of less than about fifty-five degrees; and forming a second portion of the one or more side walls of the at least one pore with a declination angle greater than about fifty-five degrees.