Gas distribution assembly for use in a semiconductor work piece processing reactor
First Claim
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1. A gas distribution assembly, comprising:
- a reactant gas supply plate which is coupled in fluid flowing relation relative to at least first and second reactant gases;
at least one reactant gas distribution plate coupled in fluid receiving relation relative to the reactant gas supply plate for substantially evenly distributing at least one of the first and second reactant gases; and
a reactant gas delivery face plate coupled in fluid receiving relation relative to the reactant gas distribution plate, and wherein the first and second reactant gases remain separated as they pass through the reactant gas supply plate, gas distribution plate and gas delivery face plate and then further exit the reactant gas delivery face plate in a substantially evenly distributed fashion.
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Abstract
A semiconductor work piece processing reactor is described and which includes a processing chamber defining a deposition region; a pedestal which supports and moves a semiconductor work piece to be processed within the deposition region of the processing chamber; and a gas distribution assembly mounted within the processing chamber and which defines first and second reactive gas passageways which are separated from each other, and which deliver two reactant gases to a semiconductor work piece which is positioned near the gas distribution assembly.
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Citations
21 Claims
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1. A gas distribution assembly, comprising:
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a reactant gas supply plate which is coupled in fluid flowing relation relative to at least first and second reactant gases; at least one reactant gas distribution plate coupled in fluid receiving relation relative to the reactant gas supply plate for substantially evenly distributing at least one of the first and second reactant gases; and a reactant gas delivery face plate coupled in fluid receiving relation relative to the reactant gas distribution plate, and wherein the first and second reactant gases remain separated as they pass through the reactant gas supply plate, gas distribution plate and gas delivery face plate and then further exit the reactant gas delivery face plate in a substantially evenly distributed fashion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A gas distribution assembly, comprising:
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a reactant gas supply plate coupled in fluid flowing relation relative to at least a first and second reactant gas supply, and wherein the reactant gas supply plate has a top and a bottom surface, and wherein a first reactant gas passageway is formed substantially centrally thereof and extends between the top and bottom surfaces, and wherein the first reactant gas is coupled in fluid flowing relation relative to the first reactant gas passageway, and further exits the bottom surface thereof, and wherein a plurality of second reactant gas passageways are formed in the top surface and extend to the bottom surface thereof, and wherein the plurality of second reactant gas passageways are distributed in a first plurality of predetermined, spaced zones about the top surface thereof; a reactant gas distribution plate having a top surface which is juxtaposed relative to the bottom surface of the reactant gas supply plate, and an opposite bottom surface, and wherein the top surface of the reactant gas distribution plate has a plurality of spaced gas channeling blocks which are arranged in a second plurality of zones that are individually substantially aligned with the first plurality of zones formed in the reactant gas supply plate, and wherein a third plurality of reactant gas passageways are formed in the respective gas channeling blocks and extend to the bottom surface of the reactant gas distribution plate, and wherein the third plurality of reactant gas passageways are individually coupled in fluid flowing relation relative to each of the respective second reactant gas passageways formed in the reactant gas supply plate, and wherein the second reactant gas flows through the third plurality of reactant gas passageways, and wherein a fourth plurality of reactant gas passageways extend between the top and bottom surface of the reactant gas distribution plate and are coupled in fluid flowing relation relative to the first reactant gas and which flows therethrough; and a reactant gas delivery face plate having a top surface which is juxtaposed relative to the bottom surface of the reactant gas distribution plate, and an opposite bottom surface, and wherein a plurality of spaced gas enclosures are mounted on the top surface, and wherein a fifth plurality of reactant gas passageways are formed in the top surface of the reactant delivery face plate and are located within the respective gas enclosures, and which further extend to the bottom surface, thereof, and wherein the first reactant gas flows therethrough, and wherein a sixth plurality of reactant gas passageways are formed in the top surface of the reactant gas delivery face plate and are located between the plurality of gas enclosures, and which extend to the bottom surface thereof, and wherein the second reactant gas flows therethrough, and wherein the first and second reactant gases exit the bottom surface of the reactant delivery face plate in a substantially equally distributed fashion. - View Dependent Claims (14, 15, 16, 17)
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18. A gas distribution assembly, comprising:
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a first, second and third gas distribution plate which are joined together, and wherein the second gas distribution plate is located between the first and third gas distribution plates, and wherein a first cavity is defined between the first and second gas distribution plates, and a second cavity is defined between the second and third gas distribution plates, and wherein a plurality of reactant gases are coupled in fluid flowing relation relative to the respective gas distribution plates; a plurality of first gas partition means for receiving and channeling a first reactant gas, and which is made integral with and extends upwardly from the second gas distribution plate, and wherein the respective first gas partition means are further located in predetermined spaced relation one relative to the others, and wherein the plurality of first gas partition means are further disposed in juxtaposed relation relative to the first gas distribution plate and are located within the first cavity; a plurality of first reactant gas passageways which are defined, at least in part, by the plurality of first gas partition means and which extend through the second gas distribution plate, and which receives and channels the first reactant gas; a plurality of second reactant gas passageways defined by the second gas distribution plate, and which extend therethrough, and which are further substantially evenly distributed around the first gas partition means, and which receives and channels a second reactant gas; a plurality of second gas partition means for receiving and channeling the second reactant gas and which is made integral with and extends upwardly from the third gas distribution plate, and wherein the respective second gas partition means are located in predetermined spaced relation one relative to the others, and wherein the second gas partition means are further disposed in juxtaposed relation relative to the second gas distribution plate, and further are located within the second cavity; a plurality of third reactant gas passageways which are defined, at least in part, by the plurality of second gas partition means and which extend through the third gas distribution plate, and which receives and channels the second reactant gas; a plurality of fourth reactant gas passageways which are defined by the third gas distribution plate and which extend therethrough, and which are further substantially evenly distributed around the plurality of second gas partition means, and which receives and channels the first reactant gas, and wherein first and second reactant gas pathways are defined by the first, second, third and fourth reactant gas passageways, and wherein a first and a second reactant gas moves along the first and second reactant gas pathways and remain separated, one from the other, until they exit the third gas distribution plate.
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19. A semiconductor work piece processing reactor, comprising:
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a processing chamber defining a deposition region; a moveable pedestal which supports and horizontally moves a semiconductor work piece to be processed within the deposition region of the processing chamber while in processing; and a gas distribution assembly mounted within the processing chamber and adjacent to the semiconductor work piece, and wherein the gas distribution assembly has multiple reactant gas distribution plates, and wherein the respective reactant gas distribution plates define a plurality of reactant gas passageways which are coupled together in predetermined fluid flowing relation so as to provide at least first and second reactant gas pathways which are separated from each other, and which deliver at least two reactant gases to the moveable semiconductor work piece. - View Dependent Claims (20, 21)
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Specification