IP Library Granted Patent US 10,176,983
Granted Patent B1
US 10,176,983 · App. 15/729,819 · Granted Jan 8, 2019

Charged particle induced deposition of boron containing material

Inventor: Aiden Alexander Martin (Walnut Creek, CA)
Assignee: Lawrence Livermore National Security, LLC
H01L21/02266C23C14/067C23C14/221H01L21/02175H01L21/02205
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Quick Facts
Patent No.
US 10,176,983
App. No.
15/729,819
Granted
Jan 8, 2019
Kind
B1
Abstract

A method for produce a boron containing film by admitting a gaseous boron precursor into a vacuum chamber containing a substrate and directing an electron beam or ion beam into the vacuum chamber onto to the surface of the substrate. The electron beam or ion beam dissociates the gaseous boron precursor at the surface of the substrate creating non-volatile fragments that bind to the substrate surface forming a boron containing film.

Claims (39)

1. A method of producing a boron film, comprising the steps of:

admitting a gaseous boron precursor into a vacuum chamber containing a substrate with a substrate surface wherein said gaseous boron precursor absorbs to said substrate surface, and

directing an ion beam or an electron beam to said substrate surface wherein said step of directing an ion beam or an electron beam to said substrate surface comprises using a scanning electron microscope for directing an ion beam or an electron beam to said substrate surface and comprising the steps of:

admitting a gaseous boron precursor into a vacuum chamber containing a substrate with a substrate surface wherein said gaseous boron precursor absorbs to said substrate surface, and

directing an ion beam or an electron beam to said substrate surface.

2. A method of producing a boron film, comprising the steps of:

admitting a gaseous boron precursor into a vacuum chamber containing a substrate with a substrate surface wherein said gaseous boron precursor absorbs to said substrate surface, and

directing an ion beam or an electron beam to said substrate surface wherein said step of directing an ion beam or an electron beam to said substrate surface comprises using an ion beam microscope for directing an ion beam to said substrate surface and wherein said ion beam or electron beam dissociates said gaseous boron precursor creating non-volatile fragments that bind to said substrate surface forming a boron containing film.

3. A method of producing a boron film, comprising the steps of:

admitting a gaseous boron precursor into a vacuum chamber containing a substrate with a substrate surface wherein said gaseous boron precursor absorbs to said substrate surface, and

directing an ion beam or an electron beam to said substrate surface wherein said ion beam or electron beam dissociates said gaseous boron precursor creating non-volatile fragments that bind to said substrate surface forming a boron containing film and wherein said step of directing an ion beam or an electron beam to said substrate surface comprises using an electron flood gun for directing an electron beam to said substrate surface.

4. A method of producing a boron film, comprising the steps of:

delivering a gaseous boron precursor to a substrate in a vacuum chamber thereby provide an interface of said gaseous boron precursor and said substrate in said vacuum chamber,

directing focused charged particles to said interface of said gaseous boron precursor and said substrate, wherein said step of directing focused charged particles to said interface of said gaseous boron precursor and said substrate comprises directing focused electrons to said interface of said gaseous boron precursor and said substrate, and

moving said focused charged particles relative to said substrate to produce the boron film.

5. A method of producing a boron film, comprising the steps of:

delivering a gaseous boron precursor to a substrate in a vacuum chamber thereby provide an interface of said gaseous boron precursor and said substrate in said vacuum chamber,

directing focused charged particles to said interface of said gaseous boron precursor and said substrate, wherein said step of directing focused charged particles to said interface of said gaseous boron precursor and said substrate comprises using a scanning electron microscope for directing focused electrons to the said interface of said gaseous boron precursor and said substrate, and

moving said focused charged particles relative to said substrate to produce the boron film.

6. A method of producing a boron film, comprising the steps of:

delivering a gaseous boron precursor to a substrate in a vacuum chamber thereby provide an interface of said gaseous boron precursor and said substrate in said vacuum chamber,

directing focused charged particles to said interface of said gaseous boron precursor and said substrate, wherein said step of directing focused charged particles to said interface of said gaseous boron precursor and said substrate comprises using an electron flood gun for directing focused electrons to the said interface of said gaseous boron precursor and said substrate, and

moving said focused charged particles relative to said substrate to produce the boron film.

7. A method of producing a boron film, comprising the steps of:

providing a gaseous boron precursor;

providing a vacuum chamber;

directing a beam of electrons or a beam of ions into said vacuum chamber;

providing a substrate, wherein said substrate has a substrate surface;

positioning said substrate in said vacuum chamber;

admitting said gaseous boron precursor into said vacuum chamber; and

directing said beam of electrons or beam of ions in said vacuum chamber onto said gaseous boron precursor and onto said substrate surface wherein said gaseous boron precursor absorbs to said substrate surface and wherein said electron beam dissociates said gaseous boron precursor creating non-volatile fragments that bind to said substrate surface forming a boron film and wherein said steps of directing a beam of electrons or a beam of ions into said vacuum chamber and directing said beam of electrons or beam of ions in said vacuum chamber onto said gaseous boron precursor and onto said substrate surface comprises using a scanning electron microscope for directing a beam of electrons into said vacuum chamber and directing said beam of electrons in said vacuum chamber onto said gaseous boron precursor and onto said substrate surface.

8. A method of producing a boron film, comprising the steps of:

providing a gaseous boron precursor;

providing a vacuum chamber;

directing a beam of electrons or a beam of ions into said vacuum chamber;

providing a substrate, wherein said substrate has a substrate surface;

positioning said substrate in said vacuum chamber;

admitting said gaseous boron precursor into said vacuum chamber; and

directing said beam of electrons or beam of ions in said vacuum chamber onto said gaseous boron precursor and onto said substrate surface wherein said gaseous boron precursor absorbs to said substrate surface and wherein said electron beam dissociates said gaseous boron precursor creating non-volatile fragments that bind to said substrate surface forming a boron film and wherein said steps of directing a beam of electrons or a beam of ions into said vacuum chamber and directing said beam of electrons or beam of ions in said vacuum chamber onto said gaseous boron precursor and onto said substrate surface comprises using an electron flood gun for directing a beam of electrons into said vacuum chamber and directing said beam of electrons in said vacuum chamber onto said gaseous boron precursor and onto said substrate surface.

Assignments (2)
CONFIRMATORY LICENSE Recorded Nov 20, 2017
From: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
To: U.S. DEPARTMENT OF ENERGY
Reel/Frame 044178/0515 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 11, 2017
From: MARTIN, AIDEN ALEXANDER
To: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
Reel/Frame 043835/0099 →