Apparatus and method for depositing materials onto microelectronic workpieces
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C23C-016/455
C23C-016/00
H01L-021/3065
H01L-021/02
출원번호
US-0933604
(2004-09-02)
등록번호
US-7387685
(2008-06-17)
발명자
/ 주소
Carpenter,Craig M.
Mardian,Allen P.
Dando,Ross S.
Tschepen,Kimberly R.
Derderian,Garo J.
출원인 / 주소
Micron Technology, Inc.
대리인 / 주소
Perkins Coie LLP
인용정보
피인용 횟수 :
26인용 특허 :
287
초록▼
Reactors for vapor deposition of materials onto a microelectronic workpiece, systems that include such reactors, and methods for depositing materials onto microelectronic workpieces. In one embodiment, a reactor for vapor deposition of a material comprises a reaction chamber and a gas distributor. T
Reactors for vapor deposition of materials onto a microelectronic workpiece, systems that include such reactors, and methods for depositing materials onto microelectronic workpieces. In one embodiment, a reactor for vapor deposition of a material comprises a reaction chamber and a gas distributor. The reaction chamber can include an inlet and an outlet. The gas distributor is positioned in the reaction chamber. The gas distributor has a compartment coupled to the inlet to receive a gas flow and a distributor plate including a first surface facing the compartment, a second surface facing the reaction chamber, and a plurality of passageways. The passageways extend through the distributor plate from the first surface to the second surface. Additionally, at least one of the passageways has at least a partially occluded flow path through the plate. For example, the occluded passageway can be canted at an oblique angle relative to the first surface of the distributor plate so that gas flowing through the canted passageway changes direction as it passes through the distributor plate.
대표청구항▼
We claim: 1. A reactor for vapor deposition of a material onto a microelectronic workpiece having an inner region and an outer region radially outward from the inner region, comprising: a reaction chamber having an inlet and an outlet; and a gas distributor in the reaction chamber, the gas distribu
We claim: 1. A reactor for vapor deposition of a material onto a microelectronic workpiece having an inner region and an outer region radially outward from the inner region, comprising: a reaction chamber having an inlet and an outlet; and a gas distributor in the reaction chamber, the gas distributor having a plenum through which a gas can flow along a flow path, the plenum having a distributor plate transverse to the flow path, and the distributor plate having a plurality of passageways extending through the plate, the passageways including first passageways having a first physical parameter and extending through the plate at an oblique angle relative to a plane defined by the plate and second passageways having a second physical parameter different than the first physical parameter and extending through the plate at an angle substantially perpendicular to the plane, and wherein the first passageways are in an inner region of the plate to supply the gas to the inner region of the microelectronic workpiece and the second passageways are in an outer region of the plate to supply the gas to the outer region of the microelectronic workpiece. 2. The reactor of claim 1 wherein: the plenum comprises a sidewall; and the distributor plate has a peripheral edge spaced laterally inward from the sidewall to define a gap between the peripheral edge and the sidewall. 3. The reactor of claim 2 wherein the first passageways are canted at an angle of approximately 15�� to approximately 85�� relative to the plane defined by the distributor plate. 4. The reactor of claim 2 wherein the first passageways in the inner region have a cross-sectional dimension of approximately 0.01-0.07 inch, and the second passageways in the outer region have a cross-sectional dimension of approximately 0.08-0.20 inch. 5. The reactor of claim 1 wherein: the plenum comprises a sidewall; and the distributor plate has a peripheral edge coupled to the sidewall. 6. A reactor for vapor deposition of a material onto a microelectronic workpiece having an inner region and an outer region radially outward from the inner region, comprising: a reaction chamber having an inlet and an outlet; and a gas distributor in the reaction chamber that is coupled to the inlet, the gas distributor comprising a plenum having a single compartment through which a gas can flow and a distributor plate, the distributor plate having a first surface facing the compartment, a second surface facing away from the compartment, and a plurality of passageways extending from the first surface to the second surface, wherein the passageways include first passageways located at a central portion of the distributor plate to supply the gas to the inner region of the microelectronic workpiece, the first passageways extending at an oblique angle relative to the first surface of the distributor plate, and wherein the passageways also includes second passageways located in an outer region of the distributor plate to supply the gas to the outer region of the microelectronic workpiece, the second passageways having a physical characteristic different from the first passageways and extending through the plate at an angle substantially perpendicular to the first surface of the distributor plate. 7. The reactor of claim 6 wherein: the compartment comprises a sidewall; and the distributor plate has a peripheral edge spaced laterally inward from the sidewall to define a gap between the peripheral edge and the sidewall. 8. The reactor of claim 7 wherein the first passageways are canted at an angle of approximately 15�� to approximately 85�� relative to the first surface of the distributor plate. 9. The reactor of claim 7 wherein the first passageways in the central portion have openings of approximately 0.01-0.07 inch and the second passageways in the outer region have openings of approximately 0.08-0.20 inch. 10. The reactor of claim 6 wherein: the compartment comprises a sidewall; and the distributor plate has a peripheral edge coupled to the sidewall. 11. A reactor for vapor deposition of a material onto a microelectronic workpiece having an inner region and an outer region radially outward from the inner region, comprising: a reaction chamber having an inlet and an outlet; and a gas distributor in the reaction chamber, the gas distributor having a plenum through which a gas can flow along a flow path, the plenum having a distributor plate transverse to the flow path, and the distributor plate having a plurality of passageways extending through the plate, the passageways including first passageways extending through the plate at an oblique angle relative to a plane defined by the plate to supply the gas to the inner region of the microelectronic workpiece, and second passageways extending through the plate at an angle substantially perpendicular to the plane to supply the gas to the outer region of the microelectronic workpiece, and wherein the first passageways are in an inner region of the plate and the second passageways are in an outer region of the plate. 12. The reactor of claim 11 wherein: the plenum comprises a sidewall; and the distributor plate has a peripheral edge spaced laterally inward from the sidewall to define a gap between the peripheral edge and the sidewall. 13. The reactor of claim 11 wherein the first passageways have a first cross-sectional dimension and the second passageways have a second cross-sectional dimension different than the first cross-sectional dimension. 14. The reactor of claim 11 wherein the first passageways are canted at an angle of approximately 15�� to approximately 85�� relative to the plane defined by the distributor plate. 15. The reactor of claim 11 wherein the first passageways in the inner region have a cross-sectional dimension of approximately 0.01-0.07 inch, and the second passageways in the outer region have a cross-sectional dimension of approximately 0.08-0.20 inch. 16. The reactor of claim 11 wherein: the plenum comprises a sidewall; and the distributor plate has a peripheral edge coupled to the sidewall.
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