Patent Publication Number: US-2021183657-A1

Title: Surface profiling and texturing of chamber components

Description:
FIELD 
     Embodiments of the present disclosure generally relate to semiconductor processing equipment. 
     BACKGROUND 
     Integrated circuits comprise multiple layers of materials deposited by various techniques, including chemical vapor deposition (CVD) or atomic layer deposition (ALD). The deposition of materials on a semiconductor substrate via CVD or ALD is a typical step in the process of producing integrated circuits. The inventors have observed undesired non-uniformities in materials deposited on the substrate via CVD or ALD in certain applications. These non-uniformities lead to further costs incurred in planarizing or otherwise repairing the substrate prior to further processing or possible failure of the integrated circuit altogether. 
     Accordingly, the inventors have provided improved methods and apparatus for uniformly depositing materials on a substrate. 
     SUMMARY 
     Methods and apparatus for surface profiling and texturing of chamber components for use in a process chamber, such surface-profiled or textured chamber components, and method of use of same are provided herein. In some embodiments, a method includes measuring a parameter of a reference substrate or a heated pedestal using one or more sensors; and modifying a surface of a chamber component based on the measured parameter. 
     In some embodiments, a non-transitory computer readable medium for storing computer instructions that, when executed by at least one processor causes the at least one processor to perform a method includes measuring a parameter of a reference substrate or a heated pedestal using one or more sensors; and modifying a surface of a chamber component based on the measured parameter. 
     In some embodiments, a processing system includes a first process chamber having a slit valve door to facilitate transferring a reference substrate into and out of the first process chamber or having a heated pedestal disposed in the first process chamber; one or more sensors disposed in the first process chamber and configured to measure a parameter of the reference substrate or the heated pedestal; and a texturing tool disposed in a second process chamber to texturize a surface of a chamber component based on the measured parameter. 
     In some embodiments, a chamber component includes a body; and a surface of the body configured to face an interior of a process chamber, wherein the surface has a region with an emissivity that increases continuously from one end of the region to an opposite end of the region. 
     Other and further embodiments of the present disclosure are described below. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Embodiments of the present disclosure, briefly summarized above and discussed in greater detail below, can be understood by reference to the illustrative embodiments of the disclosure depicted in the appended drawings. However, the appended drawings illustrate only typical embodiments of the disclosure and are therefore not to be considered limiting of scope, for the disclosure may admit to other equally effective embodiments. 
         FIG. 1  depicts a cluster tool suitable to perform methods for processing a substrate in accordance with some embodiments of the present disclosure. 
         FIG. 2  depicts a schematic side view of a process chamber for measuring a parameter of a substrate or a heated pedestal in accordance with some embodiments of the present disclosure. 
         FIG. 3A  depicts a schematic side view of a process chamber for texturing a chamber component in accordance with some embodiments of the present disclosure. 
         FIG. 3B  depicts a schematic side view of a process chamber for texturing a chamber component in accordance with some embodiments of the present disclosure. 
         FIG. 4  depicts a schematic side view of a process chamber in accordance with some embodiments of the present disclosure. 
         FIG. 5  depicts a method in accordance with some embodiments of the present disclosure. 
     
    
    
     To facilitate understanding, identical reference numerals have been used, where possible, to designate identical elements that are common to the figures. The figures are not drawn to scale and may be simplified for clarity. Elements and features of one embodiment may be beneficially incorporated in other embodiments without further recitation. 
     DETAILED DESCRIPTION 
     Methods and apparatus for surface profiling and texturing of chamber components for use in a process chamber are provided herein. Chamber components having such profiled or textured surfaces and methods of use of same are also provided herein. The inventors have identified a correlation between measured substrate parameters or measured heated pedestal parameters and the surface profile of certain chamber components within the process chamber. The methods and apparatus are directed to modifying a surface of a chamber component based on measured parameters of a substrate or a heated pedestal. The resulting surface advantageously has a surface profile that improves film uniformity on a substrate during processing. The methods described herein may be performed in individual process chambers that may be provided in a standalone configuration or as part of a multi-chamber processing system, for example, a cluster tool. 
       FIG. 1  depicts a cluster tool  100  suitable to perform methods for processing a substrate in accordance with some embodiments of the present disclosure. Examples of the cluster tool  100  include the CENTURA® and ENDURA® tools, available from Applied Materials, Inc., of Santa Clara, Calif. The methods described herein may be practiced using other cluster tools having suitable process chambers coupled thereto, or in other suitable process chambers. For example, in some embodiments, the inventive methods discussed above may be advantageously performed in a cluster tool such that there are limited or no vacuum breaks between processing steps. For example, reduced vacuum breaks may limit or prevent contamination of any substrates being processed in the cluster tool. 
     The cluster tool  100  includes a vacuum-tight processing platform (processing platform  101 ), a factory interface  104 , and a system controller  102 . The processing platform  101  includes multiple processing chambers, such as  114 A,  1146 ,  114 C, and  114 D, operatively coupled to a vacuum transfer chamber (transfer chamber  103 ). The factory interface  104  is operatively coupled to the transfer chamber  103  by one or more load lock chambers, such as  106 A and  106 B shown in  FIG. 1 . 
     In some embodiments, the factory interface  104  comprises at least one docking station  107  and at least one factory interface robot  138  to facilitate the transfer of the substrates. The at least one docking station  107  is configured to accept one or more front opening unified pod (FOUP). Four FOUPS, identified as  105 A,  105 B,  105 C, and  105 D, are shown in  FIG. 1 . The at least one factory interface robot  138  is configured to transfer the substrates from the factory interface  104  to the processing platform  101  through the load lock chambers  106 A,  106 B. Each of the load lock chambers  106 A and  106 B have a first port coupled to the factory interface  104  and a second port coupled to the transfer chamber  103 . In some embodiments, the load lock chambers  106 A and  106 B are coupled to one or more service chambers (e.g., service chambers  116 A and  116 B). The load lock chambers  106 A and  106 B are coupled to a pressure control system (not shown) which pumps down and vents the load lock chambers  106 A and  106 B to facilitate passing the substrates between the vacuum environment of the transfer chamber  103  and the substantially ambient (e.g., atmospheric) environment of the factory interface  104 . 
     The transfer chamber  103  has a vacuum robot  142  disposed therein. The vacuum robot  142  is capable of transferring substrates  121  between the load lock chamber  106 A and  1066 , the service chambers  116 A and  1166 , and the processing chambers  114 A,  114 B,  114 C, and  114 D. In some embodiments, the vacuum robot  142  includes one or more upper arms that are rotatable about a respective shoulder axis. In some embodiments, the one or more upper arms are coupled to respective forearm and wrist members such that the vacuum robot  142  can extend into and retract from any processing chambers coupled to the transfer chamber  103 . 
     The processing chambers  114 A,  114 B,  114 C, and  114 D, are coupled to the transfer chamber  103 . Each of the processing chambers  114 A,  114 B,  114 C, and  114 D may comprise a chemical vapor deposition (CVD) chamber, an atomic layer deposition (ALD) chamber, a physical vapor deposition (PVD) chamber, a plasma enhanced atomic layer deposition (PEALD) chamber, an annealing chamber, or the like. Other types of processing chambers can also be used where substrate process results are found to be dependent upon chamber component surface texturing as taught herein. 
     In some embodiments, one or more additional process chambers, such as the service chambers  116 A and  1166 , may also be coupled to the transfer chamber  103 . In some embodiments, the service chambers  116 A,  116 B are coupled to the load lock chambers  106 A and  106 B, respectively, and operate under atmospheric pressure. The service chambers  116 A and  116 B may be configured to perform processes such as degassing, orientation, metrology, cool down, texturing, and the like. For example, service chamber  116 A may be a metrology chamber that includes one or more sensors  144  to measure a parameter of a substrate disposed therein. While  FIG. 1  shows the one or more sensors  114  disposed in service chamber  116 A, the one or more sensors  114  may be disposed in one or more of the service chamber  1166  and/or the processing chambers  114 A,  1146 ,  114 C, or  114 D. 
     The system controller  102  controls the operation of the cluster tool  100  using a direct control of the service chambers  116 A and  116 B and the process chambers  114 A,  114 B,  114 C, and  114 D or alternatively, by controlling the computers (or controllers) associated with the service chambers  116 A and  1166  and the process chambers  114 A,  114 B,  114 C, and  114 D. The system controller  102  generally includes a central processing unit (CPU)  130 , a memory  134 , and a support circuit  132 . The CPU  130  may be one of any form of a general-purpose computer processor that can be used in an industrial setting. The support circuit  132  is conventionally coupled to the CPU  130  and may comprise a cache, clock circuits, input/output subsystems, power supplies, and the like. Software routines, such as processing methods as described above may be stored in the memory  134  and, when executed by the CPU  130 , transform the CPU  130  into a specific purpose computer (system controller  102 ). The software routines may also be stored and/or executed by a second controller (not shown) that is located remotely from the cluster tool  100 . 
     In operation, the system controller  102  enables data collection and feedback from the respective chambers and systems to optimize performance of the cluster tool  100  and provides instructions to system components. For example, the memory  134  can be a non-transitory computer readable storage medium having instructions that when executed by the CPU  130  (or system controller  102 ) perform the methods described herein. The recipe can include information relating to one or more parameters associated with one or more of the components of the cluster tool  100  or one or more substrates disposed on the cluster tool  100 . For example, the system controller  102  can collect data from the one or more sensors  144 . 
       FIG. 2  depicts a simplified schematic side view of a process chamber  200  for measuring a parameter of a substrate or a heated pedestal in accordance with some embodiments of the present disclosure. In some embodiments, the process chamber  200  is a first process chamber. The process chamber  200  can be a standalone process chamber or part of a cluster tool, such as the cluster tool  100  described above. In some embodiments, the process chamber  200  is one of the service chambers  116 A or  116 B or one of the process chambers  114 A,  114 B,  114 C, or  114 D. 
     The process chamber  200  includes a chamber body  202  that defines an interior volume  208 . In some embodiments, the process chamber  200  includes a slit valve door  220  coupled to the chamber body  202  to facilitate transferring a reference substrate  206  into and out of the process chamber  200 . In some embodiments, a substrate support  204  is disposed in the interior volume  208  to support the reference substrate  206 . In some embodiments, the substrate support  204  includes a heated pedestal  210  having one or more heating elements  212  disposed therein. The one or more heating elements  212  are coupled to one or more power sources (not shown). The heated pedestal  210  may be placed in the process chamber  200  from a bottom or a top of the process chamber  200 . In some embodiments, the one or more sensors  144  are disposed in the interior volume  208  opposite the substrate support  204 . In some embodiments, the one or more sensors  144  are configured to measure a parameter of the reference substrate  206 . In some embodiments, the one or more sensors  144  are configured to measure a parameter of the heated pedestal  210 . In embodiments where the one or more sensors  144  are configured to measure a parameter of the heated pedestal  210 , the reference substrate  206  is not disposed in the interior volume  208  such that the one or more sensors  144  have a clear line of sight of an upper surface of the heated pedestal  210 . The one or more sensors  144  may comprise an array of detectors such as radiation detectors, an interferometer, an infrared camera, a spectrometer, or the like, to measure one or more parameters such as substrate temperature, substrate film thickness, dielectric constant, substrate film stress, or heated pedestal temperature. Although shown in  FIG. 2  as disposed opposite the substrate support  204 , alternatively or in combination, the one or more sensors  144  can be disposed in other locations, such as adjacent the slit valve door  220  such that the substrate parameter can be measured as the substrate is being introduced into or removed from the process chamber  200  (see for example,  FIG. 4 ). 
     A controller  215  is coupled to the one or more sensors  144  to collect data from the one or more sensors  144  relating to the measured parameter of the reference substrate  206  or the heated pedestal  210 . In some embodiments, the controller  215  may be configured and may function similar to the system controller  102 . In some embodiments, the controller  215  is the system controller  102 . 
       FIG. 3A  depicts a schematic side view of a process chamber  300  for texturing a chamber component  302  in accordance with some embodiments of the present disclosure. The chamber component  302  may be any component within a reference process chamber that includes a surface that is exposed to a processing volume of the reference process chamber. For example, the chamber component  302  can be a showerhead, a liner, a substrate support, a process kit, or the like, such as the showerhead  428 , liner  414 , substrate support  424 , or process kit  436  described below with respect to  FIG. 4 . The process kit may include edge rings, deposition rings, cover rings, process shields, or the like. As shown in  FIGS. 3A and 3B , the chamber component is a showerhead. 
     In some embodiments, the process chamber  300  is a second process chamber, different than the first process chamber (e.g., process chamber  200 ). Alternatively, in some embodiments, the process chamber  300  and the process chamber  200  are the same process chamber. The process chamber  300  can be a stand-alone process chamber. The process chamber  300  includes a chamber body  324  that defines an interior volume  322  and a slit valve door  320  coupled to the chamber body  324  to facilitate transferring a chamber component  302  for use in a process chamber (e.g., process chamber  400 ) into and out of the process chamber  300 . The chamber component  302  may rest on a substrate support  306  disposed in the interior volume  322 . 
     The chamber component  302  includes a body  304  and an edge  312 . The body  304  includes a surface  308  that is exposed to a processing volume of the process chamber (e.g., processing volume  450  of process chamber  400  described below with respect to  FIG. 4 ). A texturing tool  348 A is disposed in the process chamber  300  to texturize the surface  308  of the chamber component  302  based on the parameter measured in process chamber  200 . For example, for the showerhead, liner, substrate support, process kit, or the like, texturizing the surface  308  of the chamber component  302  could be a local modification to compensate for a local high or a local low deposition region on the reference substrate  206  or could be a global modification to create a profile that compensates for the substrate deposition profile. 
     In some embodiments, texturizing the surface  308  of the chamber component  302  comprises increasing a surface roughness of a region of the chamber component  302 . In some embodiments, texturizing the surface  308  of the chamber component  302  comprises reducing a surface roughness of a region of the chamber component  302 . In some embodiments, texturizing the surface  308  of the chamber component  302  comprises reducing the surface roughness in one region of the chamber component  302  and increasing the surface roughness in another region of the chamber component  302 . Texturizing the surface  308  of the chamber component  302  advantageously allows for the control of the substrate temperature in a process chamber in which the chamber component  302  is installed, which in turn, facilitates control of film uniformity of a film formed in the process chamber. 
     In some embodiments, the texturing tool  348 A is a laser texturing tool. The texturing tool  348 A is coupled to a power source  316  to provide power to the texturing tool  348 A. The texturing tool  348 A is configured to use photon energy directed at the chamber component  302  to modify, or texturize, the surface  308  of the body  304  on a nanometer scale. In some embodiments, texturizing the surface  308  of the body  304  comprises modification of an emissivity profile of the surface  308 . In some embodiments, texturizing the surface  308  of the body comprises modification of a surface area profile of the surface  308 . 
     Emissivity is a measure of the efficiency in which a surface emits thermal energy. Typically, emissivity increases with an increase in surface roughness at a given temperature. For example, when texturizing the surface  308 , any portions of the surface  308  made smoother generally decreases the emissivity of those portions and any portion of the surface  308  made rougher generally increases the emissivity of those portions. For thermally driven processes, thermal non-uniformities on the substrate lead to non-uniform deposition on the substrate. Changing the emissivity of chamber components in a first region, such as a central region, compared to a second region, such as an outer region, can advantageously counteract a process that normally results in non-uniform deposition, such as center-high, middle-high, or edge-high deposition, amongst other non-uniform deposition patterns or other process result patterns for processes other than deposition. Changing the emissivity of chamber components can also counteract local cool or hot spots on the substrate. Regions of different emissivity can make a substrate more thermally uniform and therefore the thermally driven process results are more uniform. In addition, the emissivity profile of the component can also be controlled to be purposely non-uniform, for example, to counter non-uniform processing results driven by factors other than thermal non-uniformity, such as plasma non-uniformity, non-uniformity of process gas distribution over the substrate, or the like. 
       FIG. 3B  depicts a schematic side view of an alternate embodiment of the process chamber  300  for texturing a chamber component  302  in accordance with some embodiments of the present disclosure. In some embodiments, as shown in  FIG. 3B , a texturing tool  348 B is disposed in the process chamber  300  similar to texturing tool  348 A described above with respect to  FIG. 3A . Texturing tool  348 B can be a water jetting tool, a bead blasting tool, a chemical texturing tool, or the like. The texturing tool  348 B is coupled to a source material  340 . 
     In embodiments where the texturing tool  348 B is a water jetting tool, the source material  340  comprises water. The water jetting tool is configured to use high pressure water directed to the chamber component  302  to texturize the surface  308  of the chamber component  302 . 
     In embodiments where the texturing tool  348 B is a bead blasting tool, the source material  340  comprises abrasive material. The bead blasting tool is configured to direct abrasive material to the chamber component  302  to texturize the surface  308 . 
     In embodiments where the texturing tool  348 B is a chemical texturing tool, the source material  340  comprises a process fluid (e.g., a process gas, a process liquid, or combinations thereof). The chemical texturing tool is configured to direct the process fluid, with or without a mask layer disposed on the chamber component  302 , to the chamber component  302  to texturize the surface  308 . In some embodiments, the process fluid is applied to the surface  308  of the chamber component  302 , followed by an initiator at a desired area of the surface  308  for a predetermined amount of time. The initiator may be a chemical, heat, or light. In some embodiments, the process fluid is an organic compound that can disassociate into an acid that will etch the surface  308  of the chamber component  302 . In some embodiments, the chamber component is made of aluminum. 
     With respect to  FIGS. 3A and 3B , a controller  315  is configured to provide instructions to the texturing tool  348 A,  348 B. In some embodiments, the controller  315  may be configured and function similar to the system controller  102 . The controller  315  can provide instructions to the texturing tool  348 A or the texturing tool  348 B based on the data collected from the one or more sensors  144 . 
     In some embodiments, post modification via the texturing tool  348 A or the texturing tool  348 B, the surface  308  has an emissivity profile with an irregular pattern. In some embodiments, the surface  308  post modification can have a region  310  with an emissivity that increases continuously from one end of the region  310  to an opposite end of the region  310 . In some embodiments, the region  310  extends from a center  318  of the body  304  to an edge  312  of the body  304 . In some embodiments, the body  304  includes a middle portion  314  and the region  310  extends from a center  318  of the body to an outer periphery of the middle portion  314 . The outer periphery of the middle portion  314  is disposed between the center  318  and the edge  312 . In some embodiments, the surface  308  of the body  304  has an emissivity profile mapped to a substrate (e.g., reference substrate  206 ) that is being processed in a given process chamber (e.g., process chamber  400 ). 
     In some embodiments, post modification via the texturing tool  348 A or the texturing tool  348 B, the surface  308  has a surface area profile with an irregular pattern. In some embodiments, the surface  308  post modification can have a region  310  with a surface area that increases continuously from one end of the region  310  to an opposite end of the region  310 . In use, the inventors have observed an increase in concentration of process gas adjacent regions of the surface  308  with more local surface area, which can lead to increased reaction with a substrate being processed in the vicinity of regions with more local surface area. In some embodiments, the surface  308  of the body  304  has a surface area profile mapped to a substrate (e.g., reference substrate  206 ) that is being processed in a given process chamber (e.g., process chamber  400 ). In some embodiments, a plurality of (including all of) the chamber components  302  within a single process chamber may advantageously be texturized. 
       FIG. 4  depicts a schematic side view of a process chamber in accordance with some embodiments of the present disclosure. In some embodiments, the process chamber  400  is one of the processing chambers  114 A,  114 B,  114 C, or  114 D. The process chamber  400  can be a stand-alone process chamber or coupled to a vacuum transfer chamber (e.g., transfer chamber  103 ) of a cluster tool, such as the cluster tool  100  described above. In some embodiments, the process chamber  400  is a CVD chamber. However, chamber components of other types of processing chambers configured for different processes can also be modified as described herein. 
     The process chamber  400  includes a chamber body  406  covered by a lid  404  which defines an interior volume  420  therein. In some embodiments, the process chamber  400  is a vacuum chamber which is suitably adapted to maintain sub-atmospheric pressures within the interior volume  420  during substrate processing. The process chamber  400  may also include a process kit  436  or one or more liners  414  circumscribing various chamber components to prevent unwanted reaction between such components and process materials present within the interior volume  420 . The chamber body  406  and lid  404  may be made of metal, such as aluminum. The chamber body  406  may be grounded via a coupling to ground  430 . 
     A substrate support  424  is disposed within the interior volume  420  to support and retain a substrate  422 . The substrate support  424  may generally comprise an electrostatic chuck, vacuum chuck, or the like to retain the substrate  422  thereon during processing. The substrate support  424  may include a heated pedestal similar to heated pedestal  210  discussed above with respect to  FIG. 2 . The substrate support  424  is coupled to a hollow support shaft  412  to provide a conduit to provide, for example, backside gases, process gases, fluids, coolants, power, or the like, to the substrate support  424 . In some embodiments, the hollow support shaft  412  is coupled to a lift mechanism  413 , such as an actuator or motor, which provides vertical movement of the substrate support  424  between a processing position and a lower, transfer position. The lift mechanism  413  may also provide for rotation of the substrate. Alternatively, a separate substrate rotation mechanism (e.g., a motor or drive) may be provided to rotate the substrate support  424 , or the substrate support  424  may be rotationally fixed. The substrate support  424  may include lift pin openings (not shown) to accommodate lift pins (not shown) for raising and lowering the substrate  422  onto and off the substrate support  424 . 
     The process chamber  400  is coupled to and in fluid communication with a vacuum system  410  which includes a throttle valve (not shown) and vacuum pump (not shown) which are used to exhaust the process chamber  400 . The pressure inside the process chamber  400  may be regulated by adjusting the throttle valve and/or vacuum pump. 
     The process chamber  400  is also coupled to and in fluid communication with a process gas supply  418  which may supply one or more process gases to the process chamber  400  for processing the substrate  422  disposed therein. In some embodiments, a showerhead  428  is disposed in the interior volume  420  opposite the substrate support  424  to define a processing volume  450  therebetween. The showerhead  428  is configured to deliver the one or more process gases from the process gas supply  418  to the processing volume  450 . The showerhead  428  includes a substrate facing surface  432  (e.g., surface  308 ). In operation, for example, a plasma  402  may be created in the processing volume  450  to perform one or more processes. The plasma  402  may be created by coupling power from a plasma power source (e.g., RF plasma power supply  470 ) to one or more process gases provided via the showerhead  428  to ignite the process gas and create the plasma  402 . Bias RF power may be supplied to the substrate support  424  to attract ionized material formed in the plasma  402  towards the substrate  422 . 
     The process chamber  400  has a slit valve door  438  to facilitate transferring the substrate  422  into and out of the process chamber  400 . In some embodiments, the one or more sensors  144  are disposed in the process chamber  400  and configured to measure a parameter of the substrate  422 . In some embodiments, the one or more sensors  144  are disposed at or near the slit valve door  438  and are configured to scan the substrate  422  as the substrate  422  is at least one of transferred into or out of the process chamber  400 . 
     A controller  415  is coupled to the process chamber  400  to control the operation of the process chamber  400 . In some embodiments, the controller  415  may be configured and function similar to the system controller  102 . In some embodiments, the controller  415  is the system controller  102 . 
       FIG. 5  depicts a method  500  of modifying a chamber component in accordance with some embodiments of the present disclosure. The method  500  generally begins at  502 , where a parameter of a substrate (e.g., reference substrate  206 ) is measured across a plurality of locations of the substrate using one or more sensors (e.g., one or more sensors  144 ). In some embodiments, the plurality of locations span across an entire surface of the substrate. In some embodiments, the plurality of locations relate to locations of repeating structures formed on the substrate (such as repeating dies). The substrate may be a semiconductor wafer, such as a 200 mm, 300 mm, 450 mm wafer, or the like, or any other type of substrate used in thin film fabrication processes. In some embodiments, the substrate may be any type of substrate that is suitable for display or solar applications. In some embodiments, the substrate may be a glass panel or a rectangular substrate. 
     In some embodiments, the parameter is at least one of substrate temperature, substrate film thickness, dielectric constant, or substrate film stress. In some embodiments, multiple parameters may be measured. In some embodiments, substrate temperature is not measured directly, but determined based on the measurement of at least one of the substrate film thickness, dielectric constant, or substrate film stress. The parameter of the substrate may be measured in a standalone process chamber or as part of a multi-chamber processing system, such as described above. 
     At  504 , a target pattern is generated based on the measured parameter. In some embodiments, the target pattern is generated by applying a transfer function to the measured parameter of the substrate. In some embodiments, the transfer function is based on a single weighted input. In some embodiments, the transfer function is based on multiple weighted inputs. In some embodiments, where multiple parameters are measured, the transfer function is an average or a weighted average of a first transfer function of a first measured parameter and a second transfer function of a second measured parameter. In some embodiments, the transfer function is one of a polynomial transfer function, a differential equation transfer function, or a linear algebra transfer function. In some embodiments, the target pattern is a thermal map generated based on the measured parameter. 
     At  506 , a surface of a chamber component is modified (e.g., with texturing tool  348 A or texturing tool  348 B) based on the target pattern. The surface of the chamber component (e.g., chamber component  302 ) may be modified in a second process chamber. In some embodiments, the second process chamber (e.g., process chamber  300 ) is different than the first process chamber (e.g., process chamber  200 ). Alternatively, in some embodiments, the second process chamber and the first process chamber are the same process chamber. In some embodiments, the surface of the chamber component is modified via laser, water jetting, bead blasting, or chemical texturing. In some embodiments, modifying the surface of the chamber component comprises providing the chamber component with a surface finish having regions of different emissivity. In some embodiments, modifying the surface of the chamber component comprises changing a surface area in different regions of the surface. 
     In some embodiments, measuring the parameter of the substrate or the heated pedestal and modifying the surface of the chamber component are done in a single process chamber. In some embodiments, measuring the parameter of the substrate or the heated pedestal and modifying the surface of the chamber component are done in different process chambers. In some embodiments, the parameter of the substrate is measured after the substrate is processed in a process chamber (e.g., process chamber  400 ), and the chamber component is installed in the process chamber after the surface of the chamber component is modified. In some embodiments, the modified chamber component is modified again according to the methods described herein after a suitable time period. In some embodiments, a suitable time period is about 6 months to about 18 months. In some embodiments, the modified chamber component is modified again based on the initial measured parameter of the substrate. 
     In some embodiments, the chamber component is aligned with respect to the texturing tool prior to being modified based on the target pattern such that the orientation of the substrate when measured correlates to the orientation of the chamber component in a predetermined manner prior to being modified. Once texturized by the texturing tool  348 A or the texturing tool  348 B, the chamber component can be removed from the second process chamber and installed on any reference process chamber. 
     In any of the foregoing, measuring the parameter of the substrate or the heated pedestal and modifying the surface of the chamber component can be performed in the same process chamber as any subsequent substrate processing or in a different process chamber than the subsequent substrate processing. At  508 , the modified chamber component is optionally coated with a protective coating. In some embodiments, the protective coating comprises a chemically inert metal oxide, such as aluminum oxide (Al 2 O 3 ), yttrium oxide (Y 2 O 3 ), or the like. In some embodiments, measuring the parameter of the substrate or the heated pedestal and coating the chamber component is performed in the same process chamber and modifying the surface of the chamber component is performed in a different process chamber. In some embodiments, modifying the surface of the chamber component and coating the chamber component is performed in the same process chamber and measuring the parameter of the substrate or the heated pedestal is performed in a different process chamber. In some embodiments, the protective coating may be applied to the modified chamber component via a deposition process, such as CVD, ALD, PVD, evaporation, electron beam, or the like, inside a process chamber (e.g., process chamber  400 ). In some embodiments, once texturized by the texturing tool  348 A or texturing tool  348 B, the chamber component can be coated with the protective coating within the second process chamber and then removed from the second process chamber and installed in a reference process chamber. 
     While the foregoing is directed to embodiments of the present disclosure, other and further embodiments of the disclosure may be devised without departing from the basic scope thereof.