Patent Publication Number: US-2023151497-A1

Title: Organic contamination free surface machining

Description:
RELATED APPLICATION 
     This application is a continuation of U.S. Non-Provisional Application No. 17/241,241, filed Apr. 27, 2021, that claims benefit of U.S. Provisional Pat. Application 63/017,610, filed Apr. 29, 2020, the entire contents of which are incorporated by reference herein. 
    
    
     TECHNICAL FIELD 
     Embodiments of the present disclosure relate to surface machining in manufacturing systems, such as substrate processing systems, and in particular to organic contamination free surface machining in a manufacturing system. 
     BACKGROUND 
     In semiconductor processing and other electronics processing, objects, such as substrates, are transported between portions of the system. The different portions of the system include storage areas, transfer areas, processing areas, and so forth. Such storage areas, transfer areas, processing areas, and so on are generally composed of metals that have contaminants therein. Such contaminants are known to migrate onto substrates stored in, processed by and/or passed through the storage areas, transfer areas, processing areas, and so on. 
     SUMMARY 
     The following is a simplified summary of the disclosure in order to provide a basic understanding of some aspects of the disclosure. This summary is not an extensive overview of the disclosure. It is intended to neither identify key or critical elements of the disclosure, nor delineate any scope of the particular implementations of the disclosure or any scope of the claims. Its sole purpose is to present some concepts of the disclosure in a simplified form as a prelude to the more detailed description that is presented later. 
     In an aspect of the disclosure, a method includes receiving a metal component including a raw surface that includes a metal base, a first native oxide disposed on the metal base, and hydrocarbons disposed on the metal base. The method further includes machining the raw surface of the metal component to remove the first native oxide and a first portion of the hydrocarbons from the metal base. The machining generates an as-machined surface of the metal component including the metal base without the first native oxide and without the first portion of the hydrocarbons. Subsequent to the machining, the method further includes performing surface machining of the as-machined surface of the metal component to remove a second portion of the hydrocarbons to generate a finished surface of the metal component. Subsequent to the surface machining, the method includes surface treating the metal component to remove a third portion of the hydrocarbons. Subsequent to the surface treating, the method further includes performing a cleaning of the metal component. Subsequent to the performing of the cleaning, the method further includes drying the metal component to generate the finished surface of the metal component 
     In another aspect of the disclosure, a method includes generating a finished surface of a metal vacuum chamber component of a substrate processing system. The generating includes machining a raw surface of the metal vacuum chamber component to remove a first native oxide and a first portion of hydrocarbons from a metal base of the metal vacuum chamber component to generate an as-machined surface of the metal vacuum chamber component. Subsequent to the machining, the generating includes performing a surface machining of the as-machined surface of the metal vacuum chamber component to remove a second portion of the hydrocarbons from the metal base to generate the finished surface of the metal vacuum chamber component. Subsequent to the surface machining, the generating includes surface treating the metal vacuum chamber component to remove a third portion of the hydrocarbons. Subsequent to the surface treating, the generating further includes performing a cleaning of the metal vacuum chamber component. Subsequent to the performing of the cleaning, the generating further includes drying the metal vacuum chamber component to generate the finished surface of the metal vacuum chamber component. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present disclosure is illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings in which like references indicate similar elements. It should be noted that different references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one. 
         FIG.  1    illustrates a processing system, according to certain embodiments. 
         FIGS.  2 A-B  illustrate cross-sectional views of a processing system, according to certain embodiments. 
         FIGS.  3 A-B  illustrate methods of generating finished surfaces of metal components of processing systems, according to certain embodiments. 
         FIG.  4 A  illustrates cross-sectional views of a metal component of a processing system, according to certain embodiments. 
         FIG.  4 B  illustrates a system for generating a finished surface of a metal component, according to certain embodiments. 
     
    
    
     DETAILED DESCRIPTION OF EMBODIMENTS 
     Embodiments described herein are related to surface machining (e.g., aluminum surface machining) of a metal component in a manufacturing system (e.g., to generate substantially organic contamination free finished surface of a metal component such as an aluminum component). 
     In a manufacturing system, such as a substrate manufacturing system, content (e.g., substrates, wafers, semiconductors, process kit rings, carriers, etc.) is transported between different portions of the manufacturing system (e.g., via robot arms). The environment of the substrate manufacturing system is controlled to provide a temperature, pressure, type of gas, and/or the like. 
     Conventionally, surfaces of components in the substrate manufacturing system have organic contamination (e.g., organic residue, hydrocarbons, etc.). Organic residue remains on the finished surfaces of components of the substrate processing system after conventional cleaning. For example, isopropyl alcohol (IPA) wipes do not remove the nanometer thick organics, etc. Once the components are disposed in the substrate processing system (e.g., vacuum system), part surface organics outgas (e.g., under high vacuum, such as 1E-8Torr, and high temperature condition due to low vapor pressure at high temperature). The outgassed molecules are trapped and accumulate on surfaces (e.g., all vacuum surfaces, processing chamber walls, process kit ring, etc.). When an incoming substrate enters into the substrate processing system (e.g., vacuum chamber), the incoming substrate provides extra cold surface area, and gas molecule nucleation happens and condenses on cold substrate surfaces (e.g., with a distribution pattern on wafer edge, of a robot shape, or that is random). When a robot (e.g., providing an additional cold surface area) is exposed to surfaces (e.g., in a processing chamber) that are outgassing molecules, gas molecule nucleation occurs and condenses on the robot. Once the robot (e.g., robot blade, robot wrist) is heated and retracted, the robot comes in proximity of another component (e.g., a cold auxiliary robot blade, a cold substrate, etc.) and the outgassing molecules from the warm robot (e.g., blade, wrist) are condensed on the other component. Some of the contaminants are long molecules (e.g., long hydrocarbons) with high boiling temperatures and high sticking coefficient. 
     As contaminants (e.g., organic contamination, hydrocarbons, etc.) within the substrate processing system become disposed on the substrates (e.g., on-wafer organic contamination), the substrates become damaged and the yield of the substrate processing system (e.g., mass production factory) is reduced. On-wafer organic contamination impacts device performance after process integration (e.g., integrating the contaminated substrate in a device). In vacuum environments (e.g., ultra-low pressure; high vacuum product startup on products of physical layer deposition (PVD), chemical vapor deposition (CVD), or atomic layer deposition; etc.), outgassing from metal component surfaces (e.g., aluminum component surfaces) is a major root cause for on-wafer organic contamination. 
     Conventional metal (e.g., aluminum) component manufacturing methods contribute to organic contaminants. In some conventional systems, suspected components (e.g., that are suspected to be contributing more to contamination) are changed out (e.g., replaced), which is not time or cost efficient. In some conventional systems, wafer cycling plus residue gas analyzer (RGA) monitoring of the outgassing is used which is very time-consuming, expensive, and hard to predict. 
     The devices, systems, and methods disclosed herein provide surface machining (e.g., aluminum surface machining) in a substrate processing system (e.g., to generate substantially organic contamination free finished surface of an aluminum component). Embodiments are discussed with regards to metal surface machining and aluminum surface machining. It should be understood that an aluminum component as described herein, in some embodiments, is a pure aluminum component or a component composed of an aluminum alloy, such as: series 5000 aluminum alloy; series 6000 aluminum alloy; aluminum and one or more of copper, magnesium manganese, silicon, tin, zinc; and/or the like. Additionally, it should be understood that the surface machining techniques that are described herein with reference to aluminum, in some embodiments, also work for other types of metal surfaces, such as steel surfaces, surfaces where aluminum is not the predominant metal, stainless steel surfaces, titanium surfaces, stainless steel alloy surfaces, titanium alloy surfaces, and/or the like. 
     Prior to machining, a metal component (e.g., an aluminum component) includes a raw surface that includes a metal base (e.g., an aluminum base), a first native oxide (e.g., native oxide layer) disposed on the metal base, and hydrocarbons disposed on the metal base (e.g., hydrocarbon particles disposed within and/or on the native oxide layer). The raw surface of the metal component is machined to remove the first native oxide and a first portion of the hydrocarbons from the metal base to generate an as-machined surface of the metal component (e.g., including the metal base without the first native oxide and without the first portion of the hydrocarbons). A surface machining is performed on the as-machined surface of the metal component to remove a second portion of the hydrocarbons. In some embodiments, the surface machining is a non-abrasive surface machining (e.g., non-roughening surface machining, non-mechanically-abrasive surface machining, non-particulate-abrasive surface machining, non-jitterbug mechanical surface finishing). In some embodiments, the surface machining is an abrasive surface machining (e.g., roughening surface machining, mechanically-abrasive surface machining, particulate-abrasive surface machining, jitterbug mechanical surface finishing, etc.). The metal component is then surface treated (e.g., polished, etched using HF or NHO 3 ). Subsequent to the surface treating, the metal component is cleaned (e.g., via a cleaning agent, etc.) and the metal component is then dried (e.g., bake dried) to generate a finished surface of the metal component. In some embodiments, the finished surface of the metal component has an average surface roughness of up to 32 roughness average (Ra) micro-inch. In some embodiments, the metal component does not undergo a roughening (e.g., jitterbug, etc.) surface treatment. 
     The devices, systems, and methods disclosed herein have advantages over conventional solutions. The advantages include reducing organic contamination (e.g., hydrocarbons, organic residue, etc.) of the finished surfaces of the metal components disposed within a substrate processing system. This decreases cleaning time of the metal components, improves tool life cycle, improves tool readiness for production of substrates (e.g., decreases time between installation and production), decreases outgassing molecules from the metal components, decreases on-wafer organic contamination, increases yield of the substrate processing system, and reduces changing out of metal components. The present disclosure avoids the increased amount of replacement components, time consumption, and cost of conventional surface treatment systems and techniques that change out components suspected to be contributing to contaminants and that use wafer cycling plus RGA monitoring of outgassing. The advantages further include equipment tool final test and startup time being largely reduced and well-controlled compared to conventional systems and techniques. The advantages further include the cost of machining change being much less than the cycling wafers cost or replacing hardware cost of conventional systems and techniques. The present disclosure reduces (e.g., or eliminates) the contamination source and generates finished surfaces that are robust if customer test conditions (e.g., vacuum, temperature, etc.) changes. The present disclosure generates a smooth metal surface (e.g., via diamond blade machining and eliminating jitterbug polishing) to minimize embedded surface organic contaminants and does not outgas and contaminate the substrate (e.g., under ultra-low pressure process chamber environment, under high vacuum environment). The present disclosure removes the contamination source during metal component manufacturing (e.g., at supplier site) in embodiments. The present disclosure removes tooling marks. 
     Although some embodiments of the present disclosure refer to organic contamination free finished surface of a metal component (e.g., an aluminum component), in some embodiments, the finished surface of the metal component is substantially organic contamination free and/or has less organic contamination (e.g., hydrocarbons) than conventional systems. 
     As described herein, metal components and/or a metal base (e.g., aluminum components and/or an aluminum base) include, in some embodiments, other elements (e.g., aluminum components and the aluminum base are aluminum alloys). In some embodiments, the predominant metal in metal components and a metal base (e.g., aluminum components and aluminum base) is aluminum. In some embodiments, metal components and a metal base (e.g., aluminum components and aluminum base) include aluminum and one or more of copper, magnesium manganese, silicon, tin, zinc, and/or the like. In some embodiments, metal components and a metal base include stainless steel, stainless steel alloy, titanium, titanium alloy, and/or the like. 
       FIG.  1    illustrates a processing system  100  (e.g., wafer processing system, substrate processing system, semiconductor processing system) according to certain embodiments. The processing system  100  includes a factory interface  101  and load ports  128  (e.g., load ports  128 A-D). In some embodiments, the load ports  128 A-D are directly mounted to (e.g., seal against) the factory interface  101 . Enclosure systems  130  (e.g., cassette, front opening unified pod (FOUP), process kit enclosure system, or the like) are configured to removably couple (e.g., dock) to the load ports  128 A-D. Referring to  FIG.  1   , enclosure system  130 A is coupled to load port  128 A, enclosure system  130 B is coupled to load port  128 B, enclosure system  130 C is coupled to load port  128 C, and enclosure system  130 D is coupled to load port  128 D. In some embodiments, one or more enclosure systems  130  are coupled to the load ports  128  for transferring wafers and/or other substrates into and out of the processing system  100 . Each of the enclosure systems  130  seal against a respective load port  128 . In some embodiments, a first enclosure system  130 A is docked to a load port  128 A (e.g., for replacing used process kit rings). Once such operation or operations are performed, the first enclosure system  130 A is then undocked from the load port  128 A, and then a second enclosure system  130  (e.g., a FOUP containing wafers) is docked to the same load port  128 A. In some embodiments, an enclosure system  130  (e.g., enclosure system  130 A) is an enclosure system with shelves for aligning carriers and/or process kit rings. 
     In some embodiments, a load port  128  includes a front interface that forms a vertical opening (or a substantially vertical opening). The load port  128  additionally includes a horizontal surface for supporting an enclosure system  130  (e.g., cassette, process kit enclosure system). Each enclosure system  130  (e.g., FOUP of wafers, process kit enclosure system) has a front interface that forms a vertical opening. The front interface of the enclosure system  130  is sized to interface with (e.g., seal to) the front interface of the load port  128  (e.g., the vertical opening of the enclosure system 130is approximately the same size as the vertical opening of the load port  128 ). The enclosure system  130  is placed on the horizontal surface of the load port  128  and the vertical opening of the enclosure system  130  aligns with the vertical opening of the load port  128 . The front interface of the enclosure system  130  interconnects with (e.g., clamp to, be secured to, be sealed to) the front interface of the load port  128 . A bottom plate (e.g., base plate) of the enclosure system  130  has features (e.g., load features, such as recesses or receptacles, that engage with load port kinematic pin features, a load port feature for pin clearance, and/or an enclosure system docking tray latch clamping feature) that engage with the horizontal surface of the load port  128 . The same load ports  128  that are used for different types of enclosure systems  130  (e.g., process kit enclosure system, cassettes that contain wafers, etc.). 
     In some embodiments, the enclosure system  130  (e.g., process kit enclosure system) includes one or more items of content  110  (e.g., one or more of a process kit ring, an empty process kit ring carrier, a process kit ring disposed on a process kit ring carrier, a placement validation wafer, etc.). In some examples, the enclosure system  130  is coupled to the factory interface  101  (e.g., via load port  128 ) to enable automated transfer of a process kit ring on a process kit ring carrier into the processing system  100  for replacement of a used process kit ring. 
     In some embodiments, the processing system  100  also includes first vacuum ports  103   a ,  103   b  coupling the factory interface  101  to respective degassing chambers  104   a ,  104   b . Second vacuum ports  105   a ,  105   b  are coupled to respective degassing chambers  104   a ,  104   b  and disposed between the degassing chambers  104   a ,  104   b  and a transfer chamber  106  to facilitate transfer of wafers and content  110  (e.g., process kit rings) into the transfer chamber  106 . In some embodiments, a processing system  100  includes and/or uses one or more degassing chambers  104  and a corresponding number of vacuum ports  103 ,  105  (e.g., a processing system  100  includes a single degassing chamber  104 , a single first vacuum port  103 , and a single second vacuum port  105 ). The transfer chamber  106  includes a plurality of processing chambers  107  (e.g., four processing chambers  107 , six processing chambers  107 , etc.) disposed therearound and coupled thereto. The processing chambers  107  are coupled to the transfer chamber  106  through respective ports  108 , such as slit valves or the like. In some embodiments, the factory interface  101  is at a higher pressure (e.g., atmospheric pressure) and the transfer chamber  106  is at a lower pressure (e.g., vacuum). Each degassing chamber  104  (e.g., loadlock, pressure chamber) has a first door (e.g., first vacuum port  103 ) to seal the degassing chamber  104  from the factory interface  101  and a second door (e.g., second vacuum port  105 ) to seal the degassing chamber  104  from the transfer chamber  106 . Content is to be transferred from the factory interface  101  into a degassing chamber  104  while the first door is open and the second door is closed, the first door is to close, the pressure in the degassing chamber  104  is to be reduced to match the transfer chamber  106 , the second door is to open, and the content is to be transferred out of the degassing chamber  104 . A local center finding (LCF) device is to be used to align the content in the transfer chamber  106  (e.g., before entering a processing chamber  107 , after leaving the processing chamber  107 ). 
     In some embodiments, the processing chambers  107  includes or more of etch chambers, deposition chambers (including atomic layer deposition, chemical vapor deposition, physical vapor deposition, or plasma enhanced versions thereof), anneal chambers, or the like. 
     Factory interface  101  includes a factory interface robot  111 . Factory interface robot  111  includes a robot arm, such as a selective compliance assembly robot arm (SCARA) robot. Examples of a SCARA robot include a 2 link SCARA robot, a 3 link SCARA robot, a 4 link SCARA robot, and so on. The factory interface robot  111  includes an end effector on an end of the robot arm. The end effector is configured to pick up and handle specific objects, such as wafers. Alternatively, or additionally, the end effector is configured to handle objects such as a carrier and/or process kit rings (edge rings). The robot arm has one or more links or members (e.g., wrist member, upper arm member, forearm member, etc.) that are configured to be moved to move the end effector in different orientations and to different locations. The factory interface robot  111  is configured to transfer objects between enclosure systems  130  (e.g., cassettes, FOUPs) and degassing chambers  104   a ,  104   b  (or load ports). 
     Transfer chamber  106  includes a transfer chamber robot  112 . Transfer chamber robot  112  includes a robot arm with an end effector at an end of the robot arm. The end effector is configured to handle particular objects, such as wafers. In some embodiments, the transfer chamber robot  112  is a SCARA robot, but has fewer links and/or fewer degrees of freedom than the factory interface robot  111  in some embodiments. 
     A controller  109  controls various aspects of the processing system  100 . The controller  109  is and/or includes a computing device such as a personal computer, a server computer, a programmable logic controller (PLC), a microcontroller, and so on. The controller  109  includes one or more processing devices, which, in some embodiments, are general-purpose processing devices such as a microprocessor, central processing unit, or the like. More particularly, in some embodiments, the processing device is a complex instruction set computing (CISC) microprocessor, reduced instruction set computing (RISC) microprocessor, very long instruction word (VLIW) microprocessor, or a processor implementing other instruction sets or processors implementing a combination of instruction sets. In some embodiments, the processing device is one or more special-purpose processing devices such as an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), a digital signal processor (DSP), network processor, or the like. In some embodiments, the controller  109  includes a data storage device (e.g., one or more disk drives and/or solid state drives), a main memory, a static memory, a network interface, and/or other components. In some embodiments, the controller  109  executes instructions to perform any one or more of the methods or processes described herein. The instructions are stored on a computer readable storage medium, which include one or more of the main memory, static memory, secondary storage and/or processing device (during execution of the instructions). The controller  109  receives signals from and sends controls to factory interface robot  111  and wafer transfer chamber robot  112  in some embodiments. 
       FIG.  1    schematically illustrates transfer of content  110  (e.g., a process kit ring coupled to a process kit ring carrier) into a processing chamber  107 . According to one aspect of the disclosure, content  110  is removed from an enclosure system  130  via factory interface robot  111  located in the factory interface  101 . The factory interface robot  111  transfers the content  110  through one of the first vacuum ports  103   a ,  103   b  and into a respective degassing chamber  104   a ,  104   b . A transfer chamber robot  112  located in the transfer chamber  106  removes the content  110  from one of the degassing chambers  104   a ,  104   b  through a second vacuum port  105   a  or  105   b . The transfer chamber robot  112  moves the content  110  into the transfer chamber  106 , where the content  110  is transferred to a processing chamber  107  though a respective port  108 . While not shown for clarity in  FIG.  1   , transfer of the content  110  includes transfer of a process kit ring disposed on a process kit ring carrier, transfer of an empty process kit ring carrier, transfer of a placement validation wafer, etc. 
       FIG.  1    illustrates one example of transfer of content  110 , however, other examples are also contemplated. In some examples, it is contemplated that the enclosure system  130  is coupled to the transfer chamber  106  (e.g., via a load port mounted to the transfer chamber  106 ). From the transfer chamber  106 , the content  110  is to be loaded into a processing chamber  107  by the transfer chamber robot  112 . Additionally, in some embodiments, content  110  is loaded in a substrate support pedestal (SSP). In some embodiments, an additional SSP is positioned in communication with the factory interface  101  opposite the illustrated SSP. Processed content  110  (e.g., a used process kit ring) is to be removed from the processing system  100  in reverse of any manner described herein. When utilizing multiple enclosure systems  130  or a combination of enclosure system  130  and SSP, in some embodiments, one SSP or enclosure system  130  is to be used for unprocessed content  110  (e.g., new process kit rings), while another SSP or enclosure system  130  is to be used for receiving processed content  110  (e.g., used process kit rings). 
     The processing system  100  includes chambers, such as factory interface  101  (e.g., equipment front end module (EFEM)), transfer chamber  106 , and adjacent chambers (e.g., load port  128 , enclosure system  130 , SSP, degassing chamber  104  such as a loadlock, processing chambers  107 , or the like) that are adjacent to the factory interface  101  and/or the transfer chamber  106 . One or more of the chambers is sealed (e.g., each of the chambers is sealed). The adjacent chambers are sealed to the factory interface  101  and/or the transfer chamber  106 . In some embodiments, inert gas (e.g., one or more of nitrogen, argon, neon, helium, krypton, or xenon) is provided into one or more of the chambers (e.g., the factory interface  101 , transfer chamber  106 , and/or adjacent chambers) to provide one or more inert environments. In some examples, the factory interface  101  is an inert EFEM that maintains the inert environment (e.g., inert EFEM mini environment) within the factory interface  101  so that users do not need to enter the factory interface  101  (e.g., the processing system  100  is configured for no manual access within the factory interface  101 ). 
     In some embodiments, gas flow (e.g., providing inert gas, providing nitrogen, exhausting gas to provide a vacuum environment, etc.) is provided into and/or from one or more chambers (e.g., factory interface  101 , transfer chamber  106 , adjacent chambers, etc.) of the processing system  100 . 
     In some embodiments, the gas flow is greater than leakage through the one or more chambers to maintain a positive pressure within the one or more chambers. In some embodiments, the exhausted gas flow is greater than leakage through the one or more chambers to maintain a negative pressure within the one or more chambers. 
     In some embodiments, the inert gas within the factory interface  101  is recirculated. In some embodiments, a portion of the inert gas is exhausted. In some embodiments, the gas flow of non-recirculated gas into the one or more chambers is greater than the exhausted gas flow and the gas leakage to maintain a positive pressure of inert gas within the one or more chambers. In some embodiments, exhausted gas flow out of the one or more chambers is greater than gas leakage (e.g., and gas flow) into the one or more chambers to maintain a negative pressure (e.g., vacuum environment) within the one or more chambers. 
     In some embodiments, the one or more chambers are coupled to one or more valves and/or pumps to provide the gas flow into and/or out of the one or more chambers. A processing device (e.g., of controller  109 ) controls the gas flow into and out of the one or more chambers. In some embodiments, the processing device receives sensor data from one or more sensors (e.g., oxygen sensor, moisture sensor, motion sensor, door actuation sensor, temperature sensor, pressure sensor, etc.) and determines, based on the sensor data, the flow rate of inert gas flowing into and/or flow rate of gas flowing out of the one or more chambers. 
     One or more of the components (e.g., metal components, aluminum components) within the processing system  100  (e.g., portions of the processing system  100  that are under vacuum) are generated by performing method  300 A or  300 B to remove hydrocarbons to generate finished surfaces, in accordance with embodiments described herein. In some examples, the factory interface, load ports, load locks, cassettes, SSP, transfer chamber and/or processing chambers have been machined according to embodiments described herein. The finished surfaces have an average surface roughness of up to 32 Ra micro-inch. By removing the hydrocarbons from the surfaces of one or more of these components of the processing system  100 , organic contamination within the processing system  100  is greatly reduced. 
       FIG.  2 A  illustrates a cross-sectional view of a processing system  200 A (e.g., processing system  100  of  FIG.  1   ), according to certain embodiments.  FIG.  2 B  illustrates a cross-sectional view of a processing system  200 B (e.g., processing system  100  of  FIG.  1   ), according to certain embodiments. In some embodiments, processing systems  200 A and  200 B are the same processing system  200 . 
     The processing system  200  includes a factory interface  201  (e.g., factory interface  101  of  FIG.  1   ). The processing system  200  includes chambers that are coupled to the factory interface  201 . For example, the factory interface  201  is coupled to one or more of enclosure system  202  (e.g., substrate enclosure system, enclosure system  102  of  FIG.  1   ), load port  228  (e.g., load port  128  of  FIG.  1   ), loadlock system  204  (e.g., degassing chamber  104   a  and/or  104   b  of  FIG.  1   ), a transfer chamber  206  (e.g., transfer chamber  106  of  FIG.  1   ), and/or processing chamber  107  (e.g., processing chamber  107  of  FIG.  1   ). The factory interface  201  includes a robot arm  211  (e.g., factory interface robot  111  of  FIG.  1   ) and transfer chamber  206  includes a robot arm  212  (e.g., transfer chamber robot  112  of  FIG.  1   ). One or more portions of processing system  200  is placed in an open position or a closed position (e.g., sealed position). Gas flow is provided into and/or out of one or more portions of the processing system  200  (e.g., responsive to being in an open position, responsive to being in a closed position, responsive to transitioning between open and closed positions, based on sensor data, and/or via ports). 
     Enclosure system  202  is in a closed position responsive to a door  230  being coupled (e.g., sealed) to the enclosure system  202 . 
     Load port  228  is configured to be placed in a closed position under certain circumstances. For example, a door carrier  232  is coupled (e.g., sealed) to a first portion of the load port  228  and the enclosure system  202  and/or door  230  is coupled (e.g., sealed) to a second portion of the load port  228 . In some embodiments, the door carrier  232  is configured to place the door  230  in a closed position and in an open position (e.g., the door carrier  232  is configured to remove the door  230  from the enclosure system  202  and to secure the door  230  to the enclosure system  202 ). 
     Loadlock system  204  is in a closed position responsive to doors  203  and  205  being sealed to the loadlock system  204 . In some embodiments, the loadlock system  204  has multiple loadlock chambers  236  and each loadlock chamber  236  has corresponding doors  203 ,  205 . 
     The processing chamber  207  is in a closed position responsive to door  234  being coupled (e.g., sealed) to the processing chamber  207 . 
     The factory interface  201  is in a closed position responsive to the door carrier  232  (or door  230 ) and the doors  203  being in closed positions. The transfer chamber  206  is in a closed position responsive to the doors  205  and the door  234  being in closed positions. 
     Responsive to door carrier  232  and/or door  230  being in an open position (e.g., see  FIG.  2 B ), robot arm  211  transports content (e.g., a wafer) from the enclosure system  202  to a different portion of the processing system  200  (e.g., to factory interface  201 , to loadlock system  204 , to a storage area, cooling station, metrology station, etc.). Responsive to door  234  being in an open position (e.g., see  FIG.  2 B ), robot arm  212  transports content (e.g., wafer) from the processing chamber  207  to another portion of the processing system  200  (e.g., to transfer chamber  206 , to loadlock system  204 , etc.). 
     One or more portions of the processing system  200  include one or more corresponding ports (e.g., inlet, outlet, etc.). One or more flow devices (e.g., recirculation pump, exhaust pump, insertion pump, valve, etc.) are coupled to the ports. 
     In some embodiments, a processing device (e.g., controller  109  of  FIG.  1   ) causes gas flow (e.g., supplying non-recirculated gas, supplying recirculated gas, exhausting gas, etc.) through the ports. In some embodiments, the processing device receives sensor data (e.g., oxygen sensor, moisture sensor, door actuation sensor, temperature sensor, etc.) and causes gas flow through one or more ports based on the sensor data. 
     In some embodiments, a first environment (e.g., vacuum environment) is provided in the transfer chamber  206  and the processing chamber  207 . In some embodiments, the first environment (e.g., vacuum environment) is provided in the loadlock system  204  prior to being opened (e.g., via doors  205 ) to the transfer chamber  206 . 
     In some embodiments, a second environment (e.g., positive pressure environment, atmospheric environment, inert gas environment, vacuum environment, etc.) is provided in the factory interface  201 , enclosure system  202 , and load port  228 . In some embodiments, the second environment is provided in in the loadlock system  204  prior to being opened (e.g., via doors  203 ) to the factory interface  201 . 
     In some embodiments, all surfaces of metal components (e.g., aluminum components) that are part of the vacuum environment (e.g., transfer chamber  206 , processing chamber  207 , loadlock system  204 , doors  205 , doors  203 , robot arm  212 , etc.) are generated by performing method  300 A or  300 B to remove hydrocarbons to generate finished surfaces. The finished surfaces have an average surface roughness of up to 32 Ra micro-inch. By removing the hydrocarbons, organic contamination within the vacuum environment of the processing system  200  (e.g., and other portions of the processing system  200 ) is greatly reduced. 
       FIGS.  3 A-B  illustrates methods  300 A-B of generating finished surfaces of metal components of processing systems, according to certain embodiments. One or more operations of one or more of methods  300 A-B is performed by manufacturing equipment. In some embodiments, the same manufacturing equipment is used for multiple operations and/or different operations are performed by different manufacturing equipment. In some embodiments, the manufacturing equipment is controlled by processing logic that includes hardware (e.g., circuitry, dedicated logic, programmable logic, microcode, processing device, etc.), software (such as instructions run on a processing device, a general purpose computer system, or a dedicated machine), firmware, microcode, or a combination thereof. In some embodiments, one or more of methods  300 A-B is controlled by a controller (e.g., controller  109  of  FIG.  1   , controller  409  of  FIG.  4 B ). In some embodiments, one or more of methods  300 A-B is controlled by a server device (e.g., in communication with controller  109  of  FIG.  1   ). In some embodiments, a non-transitory storage medium stores instructions that when executed by a processing device (e.g., of controller  109  of  FIG.  1   , of controller  409  of  FIG.  4 B , of a server device, etc.) cause the processing device to perform one or more of methods  300 A-B. 
     Although shown in a particular sequence or order, unless otherwise specified, the order of the operations can be modified (e.g., blocks  308 - 310  of method  300 A can occur after block  312  of method  300 A). One or more operations can be combined (e.g., blocks  304 - 306  of method  300 A can be combined). One or more operations can be repeated (e.g., blocks  304 - 308  of method  300 A can be repeated). Thus, the illustrated embodiments should be understood only as examples, and the illustrated operations can be performed in a different order, and some operations can be performed in parallel. Additionally, one or more operations (e.g., one or more of blocks  306 - 310  of method  300 A) can be omitted in various embodiments. Thus, not all operations are used in every embodiment. 
     Referring to method  300 A of  FIG.  3 A , at block  302 , a metal component (e.g., an aluminum component, stainless steel component, titanium component, vacuum chamber component, aluminum alloy component, stainless steel alloy component, titanium alloy component, etc.) including a raw surface (e.g., see metal component  400 A of  FIG.  4 A , equipment  450 A of  FIG.  4 B ) is received. The raw surface includes a metal base (e.g., an aluminum base, aluminum alloy base), a first native oxide (e.g., oxide layer) disposed on the metal base, and hydrocarbons disposed on the metal base (e.g., hydrocarbon particles disposed in and on the oxide layer). 
     In some embodiments, the metal component (e.g., the metal base, the aluminum base) is a raw monolith. In some embodiments, the metal component (e.g., metal base, aluminum base) is an aluminum alloy. In some examples, the metal component (e.g., the metal base, the aluminum base) includes one or more of Aluminum 6061-T6, Aluminum 6062-T6, any of Aluminum 6000 series (e.g., 6000 series aluminum alloy), Aluminum 5052, any of Aluminum 5000 series (e.g., 5000 series aluminum alloy), Alimex® ACP 5080RS, Alimex® 5080R (ACP 5080R), Alimex® 5080S (ACP 5080S), Alpase 5083 M-5™, PCP 5083 Max5®, and/or Vista Duramold-5™. Alternatively, in some embodiments, other metallic components that are not aluminum are received and processed. In some embodiments, the metal component is stainless steel,  300  series stainless steel and nitronic alloy,  400  series stainless steel, 17-4PH and  440 C stainless steel, stainless steel alloy, titanium, and/or titanium alloy. The metal component may be configured to be exposed to (e.g., used in) an ultra-high vacuum (UHV) environment (e.g., transfer chamber, load lock, processing chamber). 
     In some embodiments, the metal component received in block  302  is a raw monolith (e.g., block of aluminum). 
     At block  304 , the raw surface of the metal component is machined to generate an as-machined surface (e.g., see metal component  400 B of  FIG.  4 A , equipment  450 B of  FIG.  4 B ). In some embodiments, block  304  machines the metal component (e.g., raw monolith, block of aluminum) into the shaped metal component (e.g., part of a processing chamber, process kit ring, loadlock, door, transfer chamber, robot arm, LCF device, etc.) via one or more machining processes to generate the as-machined surface. In some embodiments, the machining of block  304  include a computer numeric controlled (CNC) apparatus, a mill, etc., which makes one or more cutting passes, each of which removes a portion of the raw surface to generate the as-machined surface. In some embodiments, block  304  is includes abrasive processes (e.g., jitterbug, bead blasting, sanding, etc.). The jitterbug surface treatment is a roughening surface treatment that uses an orbital sander to bring an abrasive pad in contact with a surface and moves the abrasive pad in random-orbit action to generate a jitterbugged (e.g., random-matte, wiggle pattern) surface finish. In a roughening surface treatment, abrasive particles polish the surface to remove machine marks and for cosmetic purposes. In some embodiments, block  304  is without abrasive processes (e.g., jitterbug, bead blasting, sanding, etc.). In some embodiments, block  304  machines the raw surface via abrasive surface machining. In some embodiments, block  304  machines the raw surface via non-abrasive surface machining. In some embodiments, different thicknesses of material are removed based on the type of metal component to be generated by method  300 A. 
     In some embodiments, at block  304 , the first native oxide (e.g., or at least a portion of the first native oxide) and a first portion of the hydrocarbons are removed from the metal base. The as-machined surface includes the metal base without the first native oxide and without the first portion of the hydrocarbons. In some embodiments, at block  304 , a portion of the metal base is removed. 
     At block  306 , the metal component is exposed to atmosphere to deposit second native oxide on a metal base of the as-machined surface of the metal component (e.g., see metal component  400 C of  FIG.  4 A , equipment  450 C of  FIG.  4 B ). In some embodiments, hydrocarbons (e.g., from block  304 ) are disposed in and on the second native oxide on the metal base. In some embodiments, the machining of the metal component at block  304  is performed in atmosphere (e.g., blocks  304 - 306  occur at the same time or substantially the same time). 
     At block  308 , cleaning (e.g., via a cleaning agent) of the metal component is performed (e.g., see metal component  400 D of  FIG.  4 A , equipment  450 D of  FIG.  4 B ). In some embodiments, the cleaning removes a second portion of the hydrocarbons (e.g., does not completely remove the hydrocarbons). In some embodiments, block  308  includes first exposing the metal component to cleaner and then rinsing. In some embodiments, block  308  includes one or more rounds of cleaning and one or more rounds of rinsing. In some embodiments, one or more rounds of block  308  are before, during, and/or after one or more other blocks of method  300 A. In some embodiments, blocks  304 - 308  are repeated to perform different machining operations on the metal component. 
     At block  310 , the metal component is surface treated (e.g., see metal component  400 A of  FIG.  4 A , equipment  450 A of  FIG.  4 B ). In some embodiments, the surface treatment includes one or more of etching, polishing, depositing material on the surface of the metal component, electroplating, etc. In some embodiments, at block  310 , HF and/or HNO 3  is used to surface treat (e.g., etch) the metal component. In some embodiments, other acids are used to surface treat (e.g., etch) the surface. In some embodiments, the surface treatment (e.g., etching) removes a third portion of the hydrocarbons (e.g., does not completely remove the hydrocarbons).In some embodiments, block  310  includes one or more rounds of surface treatment (e.g., etching). In some embodiments, one or more rounds of block  310  are before, during, and/or after one or more other blocks of method  300 A. 
     At block  312 , a surface machining of the as-machined surface of the metal component is performed to generate a finished surface of the metal component (e.g., see metal component  400 E of  FIG.  4 A , equipment  450 E of  FIG.  4 B ). In some embodiments, the surface machining is an abrasive surface machining (e.g., roughening surface machining, jitterbug mechanical surface finishing). In some embodiments, the surface machining is a non-abrasive surface machining (e.g., non-roughening surface machining, non-jitterbug mechanical surface finishing). In some embodiments, the non-abrasive surface machining (e.g., block  312 ) occurs prior to surface treatment (e.g., block  310 ). In some embodiments, another iteration of cleaning (e.g., block  308 ) occurs after surface machining (e.g., block  312 ), then surface treatment (e.g., block  310 ) occurs, and then another iteration of cleaning (e.g., block  308 ) occurs after the surface treatment (e.g., block  310 ). 
     In some embodiments, surface machining includes abrasive surface machining. In some embodiments, surface machining does not include abrasive surface machining. Abrasive surface machining includes mechanically abrasive surface machining, particulate abrasive surface machining, fixed (e.g., bonded) abrasive processes, grinding, honing, sanding, jitterbug surface finishing, polishing, abrasive blasting, bead blasting, and/or the like. In some embodiments, abrasive surface machining is referred to as a mechanically-abrasive surface machining, particulate-abrasive surface machining, roughening surface machining, jitterbug surface machining, and/or the like. In some embodiments, non-abrasive surface machining is referred to as a non-mechanically-abrasive surface machining, non-particulate-abrasive surface machining, non-roughening surface machining, non-jitterbug surface machining, and/or the like. 
     In some embodiments, the finished surface has one or more of an average surface roughness of up to 32 Ra micro-inch. In some embodiments, the finished surface has one or more of an average surface roughness of about 30-34 Ra micro-inch, about 22-32 Ra micro-inch, about 15-30 Ra micro-inch, about 16-32 Ra micro-inch, about 30-40 Ra micro-inch, and/or the like. 
     In some embodiments, at block  312 , the second native oxide and a second portion of the hydrocarbons are removed (e.g., no hydrocarbons are disposed on the aluminum base of the aluminum component) to generate the finished surface. In some embodiments, at block  312 , a portion of the metal base is removed. In some embodiments, the finished surface has one or more of an increased reflectivity and/or a decreased average surface roughness (e.g., compared to the as-machined surface, compared to conventional surfaces, compared to jitterbug surfaces, etc.). 
     In some embodiments, the surface machining (e.g., non-abrasive surface machining) of the as-machined surface eliminates a contamination source (e.g., hydrocarbons) from the finished surface of the metal component. In some embodiments, the metal component (e.g., finished surface of the metal component) is generated without mechanically abrasive surface treatments (e.g., roughening surface treatment, jitterbug surface treatment, random-matte surface treatment, orbital sander tool surface treatment, abrasive particle polishing surface treatment, polishing surface treatment, bead blasting surface treatment, and/or the like). 
     In some embodiments, the surface machining (e.g., non-abrasive surface machining) is performed using a machine that moves a rotating cutter head across a surface of the component being processed until some or all of the surface of the component has been cut. In some embodiments, the surface machining is performed, for example, using a computer numeric controlled (CNC) apparatus, a mill, etc., which makes one or more cutting passes, each of which removes a portion of the surface. 
     In some embodiments, the surface machining (e.g., non-abrasive) surface machining includes diamond cut machining. In some embodiments, diamond cut machining makes one or more cutting passes with a diamond cutting tool to cut away a portion of the metal component. In some embodiments the diamond cut machining is at a high speed with a small depth of cut. In some embodiments, the diamond cut machining is via a polycrystalline diamond (PCD) insert (e.g., cutter tip). In some embodiments, the diamond cut machining is via a tip (e.g., PCD insert) used in ball mill, end mill, fly mill, bore/drill, and/or lathe applications. In some embodiments, the surface machining (e.g., non-abrasive surface machining) is via a diamond blade applying one or more of a flat-cut, ball-mill, or end-mill machining of the as-machined surface of the metal component to generate the finished surface. In some embodiments, the diamond cut machining is via a single mount diamond blade. The surface machining (e.g., non-abrasive surface machining, diamond cut machining) may be high speed, thin cut, high feed rate, and may remove less than about half of a millimeter of thickness of the metal component. 
     In some embodiments, the surface machining (e.g., non-abrasive surface machining) includes carbide bi-mount machining (e.g., with a small insert diameter carbide insert). In some embodiments, carbide bi-mount machining is performed via a polycrystalline diamond (PCD) insert (e.g., cutter tip). In some embodiments, carbide bi-mount machining is performed via low to medium speed and small to large depth of cut (e.g., compared to the high speed and small depth of cut of diamond cut machining). In some embodiments, carbide-bi-mount machining is via a tip (e.g., PCD insert) used in ball mill, end mill, fly mill, bore/drill, and/or lathe applications. 
     In some embodiments, the surface machining (e.g., non-abrasive surface machining) includes machining of light finishing cuts at a low speed (e.g., not aggressive cuts). In some embodiments, the machining of light finishing cuts is at a low speed is at a low feed rate, light speed, and light depth (e.g., via carbide insert, via straight end mill, etc.). In some embodiments, the machining of light finishing cuts at a low speed is a final cut in the surface machining (e.g., non-abrasive surface machining) to obtain a particular finish and particular surface roughness. In some embodiments, the depth of the cut is very small with high feed rate (e.g., compared to other types of non-abrasive surface machining) to quickly remove chips from the as-machined surface. In some embodiments, the machining of light finishing cuts is by making one or more cutting passes with a cutting tool (e.g., cemented carbide, tungsten carbide, titanium carbide, PCD, diamond, carbide, cubic boron nitride, and/or the like) to cut away a portion of the metal component. 
     In some embodiments, the surface machining (e.g., non-abrasive surface machining) includes one or more of: diamond cut machining at a first speed (e.g., high speed); carbide bi-mount machining at a second speed (e.g., low to medium speed) that is lower than the first speed; and/or machining shallow finishing cuts at a third speed (e.g., low speed) that is lower than the first speed (e.g., and lower than the second speed). 
     In some embodiments, the surface machining (e.g., non-abrasive surface machining) speed (e.g., cutting speed) of the metal component is from 400 to 5000 surface feet per minute (SFM). In some embodiments, the surface machining (e.g., non-abrasive surface machining) speed (e.g., cutting speed) of the metal component is from 600 to 3000 SFM. In some embodiments, the surface machining (e.g., non-abrasive surface machining) speed (e.g., cutting speed) of the metal component is from 1000 to 5000 SFM. 
     In some embodiments, the diamond cut machining is performed at 1000 to 5000 SFM; carbide bi-mount machining at 600 to 3000 SFM; and machining shallow finishing cuts at 400 to 1000 SFM. In some embodiments, the diamond cut machining is at a speed that is greater than the speed of the carbide bi-mount machining and the carbide bi-mount machining is at a speed that is greater than the machining shallow finishing cuts. 
     In some embodiments, the finished surface is substantially flat and/or smooth. In some embodiments, the finished surface minimizes trapping of hydrocarbons and other contaminants. In some embodiments, the finished surface is proximate the native material (e.g., raw surface) without contaminants (e.g., hydrocarbons) and provides for defect and contamination control. In some embodiments the finished surface has a low Ra finish. In some embodiments, the final surface finish is achieved without performing any polishing (e.g., abrasive polishing) of the surface after the surface machining (e.g., non-abrasive surface machining) is performed. 
     In some embodiments, the finished surface of the metal component is one or more of: a first inside surface of a transfer chamber of a substrate processing system; a second inside surface of a processing chamber coupled to the transfer chamber; a third inside surface of a loadlock coupled to the transfer chamber; or an outer surface of a robot (e.g., outer surface of robot blade or robot wrist) disposed in the transfer chamber (e.g., and/or processing chamber). 
       FIG.  3 B  illustrates a method  300 B of generating a finished surface of a metal component of a processing system, according to certain embodiments. In some embodiments, the metal component is aluminum, stainless steel, titanium, or an alloy thereof. In some embodiments, the metal component is a robot, sidewall of a chamber (e.g., transfer chamber, load lock chamber, processing chamber), and/or a metal component to be disposed within a vacuum environment (e.g., of a load lock, transfer chamber, and/or processing chamber). 
     Referring to method  300 B of  FIG.  3 B , at block  320 , machining of a metal component is performed in atmosphere. In some embodiments, block  320  is similar to blocks  304 - 306  of method  300 A. The machining of the metal component may include one or more of a machine tool operation, a lathe operation, an end mill operation, using one or more types of cutters on a machine tool to obtain a shape of the metal component, performing machining operations to generate features (e.g., holes, blind holes, creases, non-welded seams, etc.), and/or the like. The machining (and number of iterations of machining) may depend on the intricacy and/or complexity of the metal component, the size of the metal component, the thickness of the material being removed (e.g., larger chunks or smaller pieces), and/or the like. The machining may be a rough cut or a semi-rough cut. In some embodiments, the machining removes material without creating chatter of the machining tool. Machining of a smaller metal component or a metal component with more features may remove less material and/or use less pressure (e.g., to not deform the shape of the metal component, to not impact the part definition) than a larger metal component or a metal component with less features. 
     At block  322 , cleaning of the metal component is performed. In some embodiments, the cleaning is performed with a cleaning agent, such as alcohol, acetone, hydrochloric acid, a surface cleaner, etc. In some embodiments, the performing of the cleaning includes immersing the metal component in a cleaning agent (e.g., that includes HNO 3 ). In some embodiments, block  322  is similar to block  308  of method  300 A. 
     At block  324 , it is determined whether additional machining is to be performed. If additional machining is to be performed, flow returns to block  320 . If additional machining is not be performed, flow continues to block  326 . 
     In some embodiments, method  300 B includes multiple iterations of machining (e.g., about 2 to 4 passes with a machining tool, each pass removes a portion of the metal component). In some examples, a first iteration of machining (e.g., first iteration of block  320 ) is rough machining, a second iteration of machining (e.g., second iteration of block  320 ) is semi-rough machining, a third iteration of machining (e.g., third iteration of block  320 ) is an architectural pass, and a fourth iteration of machining (e.g., fourth iteration of block  320  or block  326 ) is a finishing pass. The different iterations of machining may be performed by the same machine or different machines. In some embodiments, a cleaning operation occurs between each of the machining operations. In some embodiments, a cleaning operation does not occur between two or more machining operations. 
     In some embodiments, the surface of the metal component is maintained wet between iterations of machining (e.g., between iterations of block  320 , between block  320  and block  326 , etc.). In some embodiments, maintaining the metal component wet prevents the machining fluids and residues from drying on the metal component. 
     At block  326 , a surface machining of the metal component is performed. In some embodiments, the surface machining is a roughening (e.g., jitterbug, bead blasting, etc.) surface machining. In some embodiments, the surface machining is a non-roughening (non-jitterbug) surface machining. Block  326  may be similar to block  312  of method  300 A. The surface machining (e.g., roughening surface machining, non-roughening surface machining) may be a final cut, finishing cut, and/or a skim cut to generate a finished surface (e.g., a smooth surface) (e.g., removing less material than block  320 ). The surface machining (e.g., non-roughening surface machining) of block  326  may take a longer amount of time (e.g., additional thinner passes to obtain finer surface roughness) than the machining of block  320 . In some embodiments, the surface machining (e.g., non-roughening surface machining) is a diamond cut (e.g., very low roughness). In some embodiments, method  300 B is without contaminating process operations (e.g., without jitterbug operations, without bead-blast operations, without heat blast operations, etc.). 
     At block  328 , a cleaning of the metal component is performed. In some embodiments, block  328  is similar to block  308  of method  300 A and/or block  322  of method  300 B. 
     At block  330 , a surface treatment of the metal component is performed. In some embodiments, the surface treatment includes one or more of immersing the metal component in an acid etching solution (e.g., HF and/or HNO 3 ), polishing the metal component, depositing material on the surface of the metal component, electroplating the surface of the metal component, and/or the like. In some embodiments, block  330  is similar to block  310  of method  300 A. The surface treatment may remove an upper layer of the metal component (e.g., a deep cleaning). In some embodiments, the surface treatment removes oxides (e.g., aluminum oxide), residuals from cleaning, impurities from previous operations (e.g., a previous bath), organics, and/or the like. 
     At block  332 , a cleaning of the metal component is performed. In some embodiments, responsive to the surface treatment of block  330 , residue is on the metal component and the cleaning of block  332  removes the residue. In some embodiments, block  332  is similar to block  308  of method  300 A and/or block  322  of method  300 B. 
     At block  334 , drying (e.g., blow drying, bake drying) of the metal component is performed (e.g., to generate a finished surface). In some embodiments, the drying includes blow drying the metal component (e.g., with an inert gas) and/or bake drying (e.g., drying at a temperature above ambient) the metal component at about 80 to about 200° C. (e.g., in an inert gas, in vacuum, etc.). 
       FIG.  4 A  illustrates cross-sectional views of a metal component  400 A-F (e.g., an aluminum component) of a processing system (e.g., processing system  100  of  FIG.  1   , processing system  200  of  FIGS.  2 A-B ), according to certain embodiments. In some embodiments, different operations of method  300  occur and/or different equipment of  FIG.  4 B  are used between the different metal components  400 A-F. 
     Metal component  400 A has a raw surface that includes a metal base  410 , a native oxide  420  (e.g., native oxide layer) disposed on the metal base  410 , and hydrocarbons  430  (e.g., hydrocarbon particles) disposed on the metal base  410  (e.g., disposed within and on the native oxide layer). In some embodiments, the metal component  400 A is contaminated with hydrocarbons  430  due to multiple incoming sources (e.g., packaging, handling, transportation, etc.). In some embodiments, the native oxide  420  is on the metal base  410  responsive to exposure of the metal component  400 A to atmosphere. In some embodiments, metal component  400 A is responsive to block  302  of method  300 A of  FIG.  3 A . In some embodiments, metal component  400 A is a raw monolith of metal (e.g., aluminum block). 
     Metal component  400 B has an as-machined surface (e.g., responsive to a fresh milling of the surface) that includes the metal base  410  and a portion of the hydrocarbons  430  that were on the metal base  410  of metal component  400 A. In some embodiments, metal component  400 B is responsive to block  304  of method  300 A of  FIG.  3 A . In embodiments, the as-machined surface is achieved by machining the raw surface of the metal component  400 A to remove the first native oxide and a first portion of the hydrocarbons from the metal base  410 . In some embodiments, the native oxide  420  has been removed so that the metal component  400 B does not include native oxide  420 . In some embodiments, a portion of the native oxide  420  has been removed so that the metal component  400 B includes a portion of the native oxide  420  of metal component  400 A. 
     Metal component  400 C has an as-machined surface that has been exposed to atmosphere. In some embodiments, metal component  400 C is responsive to block  306  of method  300 A of  FIG.  3 A . Responsive to being exposed to atmosphere, the metal component  400 C has a native oxide  420 . The hydrocarbons  430  of metal component  400 B are disposed on the metal base  410  of metal component  400 C within and on the native oxide  420 . 
     Metal component  400 D has an as-machined surface that has been exposed to atmosphere and cleaned (e.g., via a cleaning agent). In some embodiments, metal component  400 D is responsive to block  308  of method  300 A of  FIG.  3 A . Responsive to being cleaned, a portion of the hydrocarbons  430  (e.g., hydrocarbons disposed on the native oxide  420 ) have been removed and a portion of the hydrocarbons  430  (e.g., disposed within the native oxide  420 ) remain on the metal base  410 . 
     Metal component  400 E has an as-machined surface that has been exposed to atmosphere, cleaned, and surface treated (e.g., etched with hydrogen fluoride (HF) or nitric acid (HNO 3 ), polished, deposited, electroplated, etc.). In some embodiments, metal component  400 E is responsive to block  310  of method  300 A of  FIG.  3 A . Responsive to being surface treated, at least a portion of the hydrocarbons  430  remain on the metal base  410  (e.g., within the native oxide  420 ). 
     Metal component  400 F has a finished surface. In some embodiments, metal component  400 F is responsive to block  312  of method  300 A of  FIG.  3 A . The finished surface does not include hydrocarbons  430  (e.g., and does not include native oxide  420 ). The finished surface is generated by performing a surface machining (e.g., non-abrasive surface machining, such as non-jitterbug, non-roughening) of the as-machined surface of the metal component  400  to remove hydrocarbons  430 . The finished surfaces has an average surface roughness of up to 32 Ra micro-inch. By removing the hydrocarbons, organic contamination within a substrate processing system (e.g., vacuum portion of a substrate processing system, processing system  100  of  FIG.  1   , processing system  200  of  FIGS.  2 A-B , etc.) is greatly reduced. 
     In some embodiments, corresponding operations of one or more of the metal components  400 A-E is skipped or reordered to generate the finished surface of metal component  400 F. In some embodiments, one or more of the operations (e.g., cleaning, surface treating) of metal components  400 D-E are skipped or reordered. In some examples, metal component  400 F has not been cleaned or surface treated. In some examples, the cleaning and/or surface treating occur after the finished surface of the metal component  400 F has been generated by performing the surface machining (e.g., the cleaning and/or surface treating do not occur before the surface machining). 
       FIG.  4 B  illustrates a system  440  for generating a finished surface of a metal component  400  (e.g., an aluminum component), according to certain embodiments. 
     The system  440  includes equipment  450 A-F and a controller  490 . In some embodiments, the system  440  includes a transfer device  460  (e.g., robot arm, conveyor, etc.) to move the metal component between the sets of equipment  450 A-F. In some embodiments, one or more of the sets of equipment  450 A-F move to process the metal component. In some embodiments, two or more of the sets of equipment  450 A-F are combined. Controller  490  controls the equipment  450 A-F and the transfer device  460 . In some embodiments, controller  490  has the same or similar functionalities as controller  190  of  FIG.  1   . 
     In some embodiments, one or more of the sets of equipment  450 A-F are disposed in a clean organic-free environment to prevent airborne contamination. In some embodiments, intermittent cleaning occurs during part machining (e.g., before, during, and/or after use of equipment  450 B and/or  400 F) to minimize cross-contamination accumulation. In some embodiments, low outgassing materials (e.g., lubricant, O-ring, etc.) are used (e.g., for high vacuum applications). In some embodiments, organic stains-free material (e.g., cleanroom microfiber wipes, wipes constructed from a continuous filament micro denier, polyester/nylon textile wipes, and/or wipes that enhances absorbency and particle contamination removal, etc.) are used. 
     Equipment  450 A receives the metal component  400 A that has a raw surface that includes a metal base  410 , a native oxide  420  disposed on the metal base  410 , and hydrocarbons  430  disposed on the metal base  410 . See block  302  of  FIG.  3 A . 
     Equipment  450 B machines the raw surface to remove the native oxide  420  and a first portion of the hydrocarbons  430  from the metal base  410  to generate an as-machined surface of metal component  400 B. See block  304  of  FIG.  3 A . 
     In some embodiments, equipment  450 C exposes the metal component  400 B to atmosphere to deposit (e.g., form) a native oxide  420  on the metal base  410  of the metal component  400 B. See block  306  of  FIG.  3 A . In some embodiments, the metal component  400 B is exposed to atmosphere without use of equipment  450 C. 
     Equipment  450 D cleans (e.g., via a cleaning agent) the metal component  400 C to remove a second portion of the hydrocarbons  430  from the metal base  410 . See block  308  of  FIG.  3 A . 
     Equipment  450 E performs a surface treatment (e.g., etches, polishes, etc.) the metal component  400 D to remove a third portion of the hydrocarbons  430  from the metal base  410 . See block  310  of  FIG.  3 A . 
     Equipment  450 F performs a surface machining (e.g., non-abrasive surface machining, such as non-jitterbug, non-roughening) of the as-machined surface of the metal component  400  to remove hydrocarbons  430  to generate a finished surface. See block  312  of  FIG.  3 A . In some embodiments, equipment  450 F includes a diamond insert, diamond blade, diamond tip, diamond single mount, carbide bi-mount, carbide insert, carbide blade, carbide tip, or the like. 
     In some embodiments, on-wafer stains of substrates proximate to metal components (e.g., aluminum components, metal components of a processing system) at different temperatures are higher for conventional metal components (e.g., that have undergone roughening surface machining) compared to metal components formed according to the present disclosure. 
     In some embodiments, on-wafer stain counts of substrates proximate a conventional metal component (e.g., an aluminum component) are much higher than for a metal component formed according to the present disclosure. In some embodiments, a point of overload (e.g., substrate meets a threshold amount of on-wafer stain counts, substrate is not useable, substrate is to be discarded, and/or the like) of on-wafer stain counts is reached at elevated temperatures (e.g., in excess of about 100 to about 150° C.) for conventional metal components. 
     In some embodiments, on-wafer stain counts of substrates proximate a metal component (e.g., an aluminum component) formed according to the present disclosure (e.g., method  300 A of  FIG.  3 A , method  300 B of  FIG.  3 B , metal component  400 F) are much lower than conventional metal components. 
     For conventional metal components, stains are triggered at a lower temperature (e.g., at about 20 to about 40° C.) and ramp up with temperature increases under vacuum. In some embodiments, for metal components formed according to the present disclosure, small stains signal are triggered at a higher temperature (e.g., about 100 to about 150° C.) under vacuum. 
     Examples described herein also relate to an apparatus for performing the methods described herein. In some embodiments, this apparatus is specially constructed for performing the methods described herein, or includes a general purpose computer system selectively programmed by a computer program stored in the computer system. In some embodiments, the computer program is stored in a computer-readable tangible storage medium. 
     The methods and illustrative examples described herein are not inherently related to any particular computer or other apparatus. In some embodiments, the various general purpose systems are used in accordance with the teachings described herein, or a more specialized apparatus is constructed to perform methods described herein and/or each of their individual functions, routines, subroutines, or operations. Examples of the structure for a variety of these systems are set forth in the description above. 
     The preceding description sets forth numerous specific details such as examples of specific systems, components, methods, and so forth in order to provide a good understanding of several embodiments of the present disclosure. It will be apparent to one skilled in the art, however, that at least some embodiments of the present disclosure are practiced without these specific details. In other instances, well-known components or methods are not described in detail or are presented in simple block diagram format in order to avoid unnecessarily obscuring the present disclosure. Thus, the specific details set forth are merely exemplary. Particular implementations vary from these exemplary details and are still contemplated to be within the scope of the present disclosure. 
     Reference throughout this specification to “one embodiment” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrase “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment. In addition, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” When the term “about” or “approximately” is used herein, this is intended to mean that the nominal value presented is precise within ± 10%. 
     The terms “over,” “under,” “between,” “disposed on,” and “on” as used herein refer to a relative position of one material layer or component with respect to other layers or components. In some examples, one layer disposed on, over, or under another layer is directly in contact with the other layer or has one or more intervening layers. In some examples, one layer disposed between two layers is directly in contact with the two layers or has one or more intervening layers. Similarly, in some examples, one feature disposed between two features is in direct contact with the adjacent features or has one or more intervening layers. 
     Although the operations of the methods herein are shown and described in a particular order, in some embodiments, the order of operations of each method is altered so that certain operations are performed in an inverse order so that certain operations are performed, at least in part, concurrently with other operations. In another embodiment, instructions or sub-operations of distinct operations are in an intermittent and/or alternating manner. 
     It is understood that the above description is intended to be illustrative, and not restrictive. Many other embodiments will be apparent to those of skill in the art upon reading and understanding the above description. The scope of the disclosure should, therefore, be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.