Title: Domain epitaxy for thin film growth

Abstract

A method of forming an epitaxial film on a substrate includes growing an initial layer of a film on a substrate at a temperature T.sub.growth, said initial layer having a thickness h and annealing the initial layer of the film at a temperature T.sub.anneal, thereby relaxing the initial layer, wherein said thickness h of the initial layer of the film is greater than a critical thickness h.sub.c. The method further includes growing additional layers of the epitaxial film on the initial layer subsequent to annealing. In some embodiments, the method further includes growing a layer of the film that includes at least one amorphous island.

Inventors:

Narayan, Jagdish

Issue Date:

Tue Oct 18 00:00:00 EDT 2005

Research Org.:

Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1175528

Patent Number(s):

6955985

Application Number:

10/608,780

Assignee:

Kopin Corporation (Taunton, MA)

Patent Classifications (CPCs):

C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

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C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH

C30B23/02 - Epitaxial-layer growth
C30B25/02 - Epitaxial-layer growth
C30B25/105 - {by irradiation or electric discharge}
C30B25/18 - characterised by the substrate
C30B29/40 - AIIIBV compounds {wherein A is B, Al, Ga, In or Tl and B is N, P, As, Sb or Bi}
C30B29/403 - {AIII-nitrides}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

H01L21/02381 - {Silicon, silicon germanium, germanium}
H01L21/0242 - {Crystalline insulating materials}
H01L21/02458 - {Nitrides}
H01L21/02472 - {Oxides}
H01L21/02491 - {Conductive materials}
H01L21/02499 - {Monolayers}
H01L21/0254 - {Nitrides}
H01L21/02554 - {Oxides}
H01L21/02617 - {Deposition types}

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DOE Contract Number:  

AC05-00OR22725

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE