C - Chemistry – Metallurgy – 30 – B
Patent
C - Chemistry, Metallurgy
30
B
148/1
C30B 25/02 (2006.01) C30B 25/18 (2006.01) H01L 21/20 (2006.01)
Patent
CA 1339827
A crystal article comprises; a substrate having i) a nonnucleation surface (SNDS) having a small nucleation density, ii) at least one single-nucleation surface (SNDL-S) provided adjacent to said nonnucleation surface (SNDS), having an area small enough for a crystal to grow from only a single nucleus and having a larger nucleation density (NDL) than the nucleation density (NDS) of said nonnucleation surface (SNDS), and iii) at least one multiple-nucleation surface (SNDL-M) having an area large enough for crystals to grow from plural nuclei and having a larger nucleation density (NDL) than the nucleation density (NDS) of said nonnucleation surface (SNDS); at least one monocrystal grown from said single nucleus and extending over said single-nucleation surface (SNDL-S) to cover part of said nonnucleation surface (SNDS); and a polycrystalline film grown from said plural nuclei to cover said multiple-nucleation surface.
562511
Canon Kabushiki Kaisha
Ridout & Maybee Llp
LandOfFree
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