WO2020050009A1 - 基板処理装置 - Google Patents
基板処理装置 Download PDFInfo
- Publication number
- WO2020050009A1 WO2020050009A1 PCT/JP2019/032450 JP2019032450W WO2020050009A1 WO 2020050009 A1 WO2020050009 A1 WO 2020050009A1 JP 2019032450 W JP2019032450 W JP 2019032450W WO 2020050009 A1 WO2020050009 A1 WO 2020050009A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- processing
- unit
- cleaning
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/04—Apparatus for manufacture or treatment
- H10P72/0402—Apparatus for fluid treatment
- H10P72/0406—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P52/00—Grinding, lapping or polishing of wafers, substrates or parts of devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/04—Apparatus for manufacture or treatment
- H10P72/0402—Apparatus for fluid treatment
- H10P72/0406—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H10P72/0411—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H10P72/0416—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing with the semiconductor substrates being dipped in baths or vessels
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/04—Apparatus for manufacture or treatment
- H10P72/0402—Apparatus for fluid treatment
- H10P72/0418—Apparatus for fluid treatment for etching
- H10P72/0422—Apparatus for fluid treatment for etching for wet etching
- H10P72/0424—Apparatus for fluid treatment for etching for wet etching using mainly spraying means, e.g. nozzles
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/30—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations
- H10P72/33—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations into and out of processing chamber
- H10P72/3302—Mechanical parts of transfer devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/30—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations
- H10P72/33—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations into and out of processing chamber
- H10P72/3308—Vertical transfer of a single workpiece
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/30—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations
- H10P72/33—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for conveying, e.g. between different workstations into and out of processing chamber
- H10P72/3312—Vertical transfer of a batch of workpieces
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/76—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches
- H10P72/7602—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches the wafers being placed on a robot blade or gripped by a gripper for conveyance
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/76—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches
- H10P72/7604—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches the wafers being placed on a susceptor, stage or support
- H10P72/7608—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a plurality of separate clamping members, e.g. clamping fingers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/76—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches
- H10P72/7604—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches the wafers being placed on a susceptor, stage or support
- H10P72/7612—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches the wafers being placed on a susceptor, stage or support characterised by lifting arrangements, e.g. lift pins
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/76—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches
- H10P72/7604—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches the wafers being placed on a susceptor, stage or support
- H10P72/7614—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using mechanical means, e.g. clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a plurality of individual support members, e.g. support posts or protrusions
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/06—Suspending or supporting devices for articles to be coated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
Definitions
- the present invention relates to a substrate processing apparatus for processing a substrate with a processing liquid.
- an electrolytic plating method that is relatively inexpensive and has a short processing time is widely used.
- the substrate holder is taken out of the processing tank, transported to the substrate attaching / detaching position, and the substrate is taken out from the substrate holder. This series of steps is performed by driving a robot arm and a transport mechanism.
- the substrate taken out of the substrate holder after the plating process needs to be washed and dried.
- the processing substrate is a circular substrate
- spin cleaning and drying by SRD spin @ Rinse @ Dryer
- the shape of the substrate changes depending on the use of the product.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a substrate processing apparatus capable of stably processing even a thin substrate.
- the substrate processing apparatus includes a support having a mounting surface on which the substrate is mounted in a horizontal position, a processing bath for supplying a processing liquid to the substrate to process the substrate, and a process for lowering the substrate into the processing bath.
- An elevating unit that raises and lowers the support unit to raise the processing unit from the processing tank; a grip unit that grips an outer peripheral portion of the substrate supported by the support unit and receives the substrate from the support unit above the processing tank;
- a first nozzle for spraying a gas to the dried substrate to dry the substrate.
- the substrate processing apparatus of the present invention even a thin substrate can be processed stably.
- FIG. 2 is a plan view schematically illustrating the plating apparatus according to the first embodiment. It is a perspective view showing the whole structure of a washing device. It is a perspective view showing the structure of a washing unit. It is a perspective view showing the structure of a washing unit. It is a longitudinal section showing the composition of a washing device. It is a side view showing the structure and operation
- One embodiment of the present invention is a substrate processing apparatus for processing a substrate with a processing liquid.
- the substrate may be immersed in a processing liquid.
- a cleaning process in which the substrate is immersed in a cleaning liquid may be used.
- a plating process in which the substrate is immersed in a plating solution may be used.
- a cooling process in which the substrate is immersed in cooling water may be used.
- the processing liquid may be sprayed on the surface of the substrate. After the treatment with the treatment liquid, the substrate is dried.
- the substrate processing apparatus includes a processing tank, a processing liquid supply unit, a processing liquid discharge unit, a support unit, a holding unit, a lifting unit, and a first nozzle for a series of processing.
- the processing liquid supply unit supplies the processing liquid to the processing tank.
- an overflow tank for overflowing the processing liquid from the processing tank may be provided in order to keep the processing liquid clean.
- the overflowed processing solution may be discarded as it is.
- a circulation mechanism for purifying the overflowed processing liquid with a filter or the like and returning it to the processing tank may be provided.
- the processing liquid discharge unit discharges the processing liquid from the processing tank.
- the substrate is transferred between the support part and the grip part.
- the support unit supports the substrate during the processing with the processing liquid, and the grip unit supports the substrate during the drying process.
- the support receives the substrate above the processing bath.
- the support has a mounting surface on which the substrate is mounted in a horizontal position.
- the support section includes a plurality of clamp sections (first clamp mechanisms) for keeping the mounted state of the thin substrate stable.
- the first clamp mechanism clamps the peripheral edge of the substrate between the first clamping mechanism and the mounting surface.
- a plurality of first clamp mechanisms may apply tension in the peripheral direction (outward) to the substrate.
- the supporting part on which the substrate is placed is lowered by the elevating unit.
- the processing liquid may be stored in a processing tank in advance, and the substrate may be lowered toward the processing liquid, but air bubbles are likely to adhere to the lower surface of the substrate. .
- the processing liquid adheres to other structures due to liquid splashing, which may have an adverse effect.
- the substrate may be processed with a plurality of types of processing liquids. In that case, it is preferable to sequentially supply and discharge each processing solution while holding the substrate in the processing bath.
- the gripper grips the outer peripheral portion of the substrate and opens the upper and lower surfaces of the substrate.
- the gripper may include a plurality of clamps (second clamp mechanism). A plurality of second clamp mechanisms may apply tension in the peripheral direction (outward) to the substrate.
- the first nozzle blows gas onto a substrate that is horizontally held by the holding unit, and dries the substrate.
- the substrate can be placed on the mounting surface to be moved up and down while maintaining the horizontal posture, and the processing with the processing liquid can be performed.
- the transfer of the substrate at the time of the drying process is also performed while the substrate is placed on the mounting surface, so that the switching from the mounting to the holding can be stably performed. Therefore, the substrate does not bend during a series of processing steps and does not interfere with other structures. That is, processing can be stably performed even with a thin substrate.
- the support may include a frame.
- a plurality of protrusions may be provided on the upper surface of the frame, and the mounting surface may be configured by the upper surfaces of the protrusions.
- the “frame” may have a shape having only the outer frame, or may have a lattice shape. In the latter case, one or a plurality of bridge portions are provided to bridge the outer frame of the frame. The presence or absence and the number of the crosslinked portions can be appropriately set according to the size of the substrate to be supported.
- the protrusions may be arranged in accordance with a contactable area (a non-mounting area such as a circuit) of the substrate. With such a configuration, most of the lower surface of the substrate can be opened to the processing liquid, and the processing liquid can be spread over the entire upper and lower surfaces of the substrate.
- the substrate processing apparatus includes a control unit that drives and controls each unit (each mechanism).
- the control unit lowers the support unit after transferring the substrate from the support unit to the holding unit, and causes the first nozzle to dry the substrate.
- the first nozzle may be driven at a stage where the support section has descended to a position where the support section does not interfere with the grip section, even if the support section does not reach the descending setting position. Thereby, the processing efficiency can be improved as a whole.
- the processing liquid may be discharged from the processing tank before or after the support section is raised. Then, after the substrate is transferred from the support unit to the holding unit, the support unit may be lowered into the processing tank. Thereby, the support portion can be retracted using the empty space of the processing tank. By discharging the used processing liquid in the processing tank in advance, it is possible to keep the mounting surface clean when the support portion is retracted.
- 2A second nozzle may be provided separately from the first nozzle to dry the mounting surface of the support.
- the drying process of the substrate by the first nozzle (first drying process) and the drying process of the mounting surface by the second nozzle (second drying process) may be performed in parallel.
- the first drying process may be started during the lowering of the support unit, and the second drying process may be started after the lowering of the support unit is completed. That is, since the drying of the substrate is more important than the mounting surface, the first drying process may require a longer processing time than the second drying process. In such a case, by starting the first drying process prior to the second drying process, the entire processing time can be reduced, and efficiency can be improved.
- the substrate processing apparatus includes a substrate transport unit.
- the substrate transport section has a support surface that supports the upper surface of the substrate.
- the substrate transport unit transfers the substrate to the mounting surface of the support unit while holding the substrate in a horizontal posture, and receives the substrate from the mounting surface.
- the “supporting surface” may be a “suction surface” capable of sucking the upper surface of the substrate in a non-contact state. Alternatively, it may be an "adsorption surface” that can be adsorbed by contacting the upper surface of the substrate. From the viewpoint of strictly maintaining the cleanliness of the substrate, the support surface is preferably a non-contact type.
- the control unit raises the support unit after the drying process, and transfers the substrate from the holding unit to the support unit. At this time, the horizontal posture is maintained by mounting the substrate on the mounting surface again. Then, the substrate thus supported on the mounting surface is received by the substrate transport unit. With such a configuration, the substrate can be transferred without using a transport roller or the like.
- FIG. 1 is a plan view schematically illustrating the plating apparatus according to the first embodiment.
- the plating apparatus 1 includes a substrate attaching / detaching section 2, a plating section 4, and a control section 6.
- the plating apparatus 1 of the present embodiment is a bump plating apparatus for forming a protruding electrode (bump) on a substrate.
- a substrate delivery table 8 is provided in front of the substrate attachment / detachment unit 2, and a pre-cleaning unit 10 and a post-cleaning unit 12 are provided adjacent to the substrate delivery table 8.
- a device that delivers the substrate processed in the upstream process to the substrate delivery table 8 is provided in front of the plating apparatus 1, but the description thereof is omitted.
- the substrate delivery table 8 places a substrate W such as a semiconductor wafer in a horizontal posture.
- the substrate W is a relatively large thin substrate and is easily bent.
- a rectangular substrate having a size of about 500 mm ⁇ 500 mm and a thickness of about 1 mm is used as the substrate W, but the size, thickness, and shape are not limited thereto.
- the substrate W is such that a copper seed layer is provided on the upper surface of a wafer, and a resist pattern is formed thereon. If bubbles are present in the opening of the resist when plating the substrate W, normal plating cannot be performed. In addition, when an organic substance or the like is attached to the seed layer, normal plating may not be performed in some cases.
- the pre-cleaning unit 10 has the cleaning device 14 and performs pre-cleaning to remove organic substances and the like adhering to the surface of the substrate W prior to the plating process.
- the post-cleaning unit 12 has a cleaning device 16 and cleans the substrate W removed from the substrate holder 24 after the plating process.
- a holder transport mechanism 18 is provided from the substrate attaching / detaching section 2 to the plating section 4.
- the control unit 6 controls the operation of each unit.
- the substrate attaching / detaching unit 2 includes an attaching / detaching mechanism 20, a substrate transport robot 22, and a moving mechanism 23.
- the substrate transfer robot 22 has a robot hand 22a.
- the substrate transfer robot 22 functions as a “substrate transfer unit”, and transfers the substrate W to and from the substrate transfer table 8 and transfers the substrate W to each mechanism.
- the robot hand 22a has a non-contact chuck for holding the substrate W in a horizontal posture. In this embodiment, a Bernoulli type is used as the non-contact chuck, but a cyclone type may be used. If the cleanliness of the substrate W can be maintained, a contact-type suction pad (vacuum pad) may be used.
- the moving mechanism 23 moves the substrate transfer robot 22 according to the transfer position of the substrate W.
- the substrate transfer robot 22 moves to the vicinity of the pre-cleaning section 10 in the pre-cleaning step, and moves to the vicinity of the post-cleaning section 12 in the post-cleaning step.
- a stocker 25 for accommodating the substrate holder 24 is provided below the attachment / detachment mechanism 20, a stocker 25 for accommodating the substrate holder 24 is provided.
- the attachment / detachment mechanism 20 attaches / detaches the substrate W to / from the substrate holder 24.
- the holder transport mechanism 18 has a gripping mechanism 26 for gripping the substrate holder 24 and a transport mechanism 28 for transporting the substrate holder 24 to each tank of the plating unit 4.
- the attachment / detachment mechanism 20 also attaches / detaches the substrate holder 24 to / from the gripping mechanism 26.
- the plating unit 4 includes a pre-wet tank 30, a pre-soak tank 32, a rinse tank 34, a blow tank 36, a rinse tank 38, and an overflow tank 40 in this order from the substrate attaching / detaching unit 2 side.
- a plurality of rows of plating tanks 42 are provided inside the overflow tank 40.
- the pre-wet tank 30 can fill the inside of the resist opening on the substrate surface with degassed water by immersing the substrate W in degassed water to wet it.
- the presoak tank 32 etches and removes an oxide film formed on the surface of the substrate W with a chemical solution.
- the rinsing baths 34 and 38 clean the surface of the substrate W with deionized water.
- the rinsing tank 34 performs washing before plating, and the rinsing tank 38 performs washing after plating.
- the blow tank 36 drains the washed substrate W.
- the plating bath 42 stores a plating solution. The plating can be performed by immersing the substrate W in the plating tank 42 and circulating the plating solution while overflowing the plating solution into the overflow tank 40.
- the plating process generally requires a longer processing time than cleaning, drying, and other processes. For this reason, a plurality of plating tanks 42 are provided so that a plurality of substrates W can be plated simultaneously and in parallel.
- the transport mechanism 28 is, for example, a mechanism of a linear motor type, and transports the substrate holder 24 to each tank of the plating unit 4.
- the transport mechanism 28 transports the substrate holder 24 one after another by utilizing the time lag of the processing in each plating tank 42.
- the control unit 6 comprises a microcomputer, a CPU for executing various arithmetic processes, a ROM for storing control programs, a RAM used as a work area for storing data and executing programs, and retains stored contents even after power is turned off.
- a non-volatile memory an input / output interface, a timer for clocking, and the like.
- the control unit 6 drives and controls each mechanism, but a control unit may be provided for each mechanism. In that case, a general control unit that controls the control unit of each mechanism may be provided.
- the plating apparatus 1 performs the following operations.
- the substrate transport robot 22 takes out the substrate W to be plated from the substrate delivery table 8 and sets it in the cleaning device 14.
- the cleaning device 14 Upon receiving the substrate W, the cleaning device 14 performs a pre-cleaning process for removing organic substances and the like. Details of the cleaning process will be described later.
- the substrate transport robot 22 receives the substrate W from the cleaning device 14 and passes it to the attaching / detaching mechanism 20.
- the attachment / detachment mechanism 20 sets the substrate W on the substrate holder 24 and attaches it to the holding mechanism 26.
- the transport mechanism 28 lifts up the gripping mechanism 26 to transport the substrate holder 24, and immerses the substrate W together with the substrate holder 24 in the pre-wet bath 30.
- a pre-wet process using deaerated water is performed.
- the degassed water is stored in the pre-wet tank 30.
- the de-aerated water can be replaced with the air in the resist opening on the substrate surface and the pre-wetting process that fills the resist opening with the liquid can be performed, this method is used. There is no need to limit.
- the pre-wet tank 30 may not be provided.
- the transport mechanism 28 takes out the substrate holder 24 from the pre-wet tank 30 and transports it, and immerses it in the pre-soak tank 32.
- the presoak tank 32 stores a chemical such as sulfuric acid or hydrochloric acid.
- the oxide film is removed by performing a presoak process using this chemical solution. Thereby, a clean metal surface of the seed layer can be exposed.
- the transport mechanism 28 takes out the substrate holder 24 from the presoak tank 32, transports it, and immerses it in the rinse tank 34. Thereby, the chemical solution attached to the substrate W is washed away with the deionized water. Subsequently, the transport mechanism 28 immerses the substrate W in the empty plating tank 42. In this embodiment, copper plating is performed in this plating process. However, by changing the plating solution supplied to the plating tank 42, nickel, gold plating, or other plating can be performed.
- the substrate W thus plated is washed in a rinse tank 38 and then drained in a blow tank 36. Thereafter, the sheet is transported to the attachment / detachment mechanism 20.
- the attachment / detachment mechanism 20 removes the substrate holder 24 from the gripping mechanism 26, and takes out the substrate W from the substrate holder 24.
- the substrate transfer robot 22 receives the substrate W from the attachment / detachment mechanism 20 and sets the substrate W in the cleaning device 16. Upon receiving the substrate W, the cleaning device 16 performs a post-cleaning process.
- FIG. 2 is a perspective view illustrating the entire configuration of the cleaning device 14.
- the cleaning device 14 dries the substrate W above the cleaning unit 52, a cleaning unit 52 mounted on the base 50, a support mechanism 54 for supporting the substrate W above the cleaning unit 52, and the cleaning unit 52.
- a drying mechanism 56 is provided.
- the support mechanism 54 is a mechanism that supports the substrate W during the drying process, and functions as a “grip”.
- the drying mechanism 56 is a mechanism for drying the substrate W.
- a support column 58 is provided upright at the four corners of the base 50, and a pair of guide members 60a and 60b are provided so as to bridge the left and right support columns 58 (when these are not particularly distinguished, they are collectively referred to as a "guide member 60").
- the guide members 60a and 60b extend horizontally and are parallel to each other.
- the support mechanism 54 has a pair of grip units 62a and 62b for holding the substrate W horizontally during the drying process (these are collectively referred to as "grip units 62" when they are not particularly distinguished).
- the grip unit 62a is hung by the guide member 60a, and the grip unit 62b is hung by the guide member 60b.
- the gripping unit 62 includes a support base 64 extending in parallel with the guide member 60 and a pair of clamp mechanisms 66 arranged in the direction in which the support base 64 extends.
- the substrate W can be sandwiched from above and below and supported horizontally by a total of four clamp mechanisms 66 of the pair of gripping units 62. The details of the clamp mechanism 66 will be described later.
- the drying mechanism 56 is movably supported along the pair of guide members 60.
- a linear motor 68 that drives the drying mechanism 56 is provided on the upper surface of the guide member 60a.
- a guide rail 70 that guides the driving of the drying mechanism 56 is provided on the upper surface of the guide member 60b.
- the drying mechanism 56 has a support base 72 suspended by a pair of guide members 60 and a pair of upper and lower air knives 74a and 74b supported by the support base 72 (these are collectively referred to as "air knives 74" unless otherwise specified). ).
- the air knives 74a and 74b function as “first nozzles” and eject air from above and below to the substrate W held horizontally during the drying process.
- FIGS. 3 and 4 are perspective views showing the configuration of the cleaning unit 52.
- FIG. These figures show a state in which the cleaning unit 52 in FIG. 2 has been extracted and the substrate W has been removed.
- FIG. 3 shows a state where the support mechanism of the cleaning unit 52 is raised, and
- FIG. 4 shows a state where the support mechanism is lowered.
- the cleaning unit 52 includes a case 80 that accommodates an internal mechanism, a processing tank 82 disposed in the case 80, a supply mechanism 84 that supplies a cleaning liquid to the processing tank 82, and a processing tank 82.
- a discharge mechanism 86 that discharges the cleaning liquid from the substrate W
- a support mechanism 88 that can support the substrate W in a horizontal posture
- an elevating mechanism 90 that moves the support mechanism 88 up and down.
- the supply mechanism 84 functions as a “processing liquid supply unit”
- the discharge mechanism 86 functions as a “processing liquid discharge unit”.
- the support mechanism 88 functions as a “supporting unit”
- the elevating mechanism 90 functions as a “elevating unit”.
- the processing tank 82 includes a cleaning tank 92 to which the cleaning liquid is supplied, and an overflow tank 94 to which the cleaning liquid overflows.
- a cleaning liquid supply port 96 is provided on a side wall of the cleaning tank 92 opposite to the overflow tank 94. In this embodiment, three horizontally long supply ports 96 are provided. These supply ports 96 are positioned so as to be lower than the lower surface of the substrate W when a support member 104 described later descends.
- the supply mechanism 84 has a supply pipe 98 communicating with the supply port 96 and a control valve (supply valve and switching valve) provided upstream of the supply pipe 98 (not shown).
- the switching valve switches which of a plurality of types of cleaning liquids is supplied. In the present embodiment, three types of cleaning liquid, deaerated water, ozone water, and deionized water (DIW) are prepared.
- DIW deionized water
- An outlet 100 is provided at the center of the bottom of the cleaning tank 92.
- the discharge mechanism 86 has a drain pipe communicating with the discharge port 100 and a control valve (discharge valve) provided on the drain pipe (not shown). When the discharge valve is opened, the processing liquid in the cleaning tank 92 is discharged.
- the elevating mechanism 90 includes an elevating shaft 102 provided at four corners around the processing tank 82 and an air cylinder (not shown) for elevating the elevating shaft 102.
- the support mechanism 88 includes a rectangular plate-shaped support member 104 and clamp mechanisms 106 disposed at four corners around the support member 104. As the elevating shaft 102 moves up and down, the support member 104 and the clamp mechanism 106 move up and down integrally. The four clamp mechanisms 106 fix the substrate W to the support member 104 during the cleaning process. The position of the substrate W is prevented from being shifted by the water pressure of the cleaning liquid supplied to the cleaning tank 92.
- the four clamp mechanisms 106 are supported by the four lifting shafts 102, respectively.
- the support member 104 is supported at four corners by the four elevating shafts 102 and maintains a horizontal posture.
- L-shaped suspension members 105 are fixed to the tops of the respective lifting shafts 102, and the four suspension members 105 are connected to the four corners of the support member 104, respectively.
- a plurality of projections 108 are provided on the upper surface of the support member 104 along the lattice shape.
- the substrate W is placed on these projections 108.
- the details of the support member 104 and the clamp mechanism 106 will be described later.
- a drying mechanism 110 is provided around the cleaning tank 92.
- the drying mechanism 110 is a mechanism for drying the mounting surface (projection 108) of the support member 104.
- the drying of the substrate W (first drying process) and the drying process of the support member 104 (second drying process) are individually executed.
- the entire upper and lower surfaces of the substrate W are efficiently dried.
- the mounting surface (projection 108) is dried.
- the drying mechanism 110 includes air nozzles 112 arranged in three rows on the front side and the back side of the cleaning tank 92, respectively.
- the air nozzle 112 functions as a “second nozzle”. As shown in the drawing, when the support member 104 is in the lowered state, air can be uniformly jetted from the six air nozzles 112 toward the plurality of protrusions 108 (see the two-dot chain line), and the water on the upper surface can be removed. Thus, the angle of each air nozzle 112 is adjusted.
- the support member 104 can also be dried by blowing air from above with an air knife.
- the support member 104 is a frame, and that the projections 108 scattered on the frame are to be dried, it is not necessary to blow out layered air. It can be called efficiency.
- the air nozzle 112 is employed for the drying mechanism 110. The details of the drying mechanism 110 will be described later.
- FIG. 5 is a vertical cross-sectional view illustrating the configuration of the cleaning device 14, and corresponds to a cross section taken along the line AA of FIG.
- FIG. 6 is a side view illustrating the configuration and operation of the clamp mechanism 66.
- FIG. 6A shows an unclamped state
- FIG. 6B shows a clamped state.
- a drain tube 114 is provided so as to communicate with the outlet 100 of the cleaning tank 92.
- the processing liquid in the cleaning tank 92 is discharged through the drain pipe 114.
- a discharge port 116 and a drain pipe 118 are also provided at the bottom of the overflow tank 94.
- the processing liquid overflowing from the cleaning tank 92 is discharged through the drain pipe 118.
- the air knife 74 has a slit-shaped nozzle and jets compressed air in a thin layer.
- the nozzle of the air knife 74a opens diagonally downward, and the nozzle of the air knife 74b opens diagonally upward.
- the inclination angles of the two are substantially the same with the horizontal direction.
- the clamp mechanism 66 has a base 120 fixed to the support base 64, a pair of upper and lower grips 122 supported by the base 120, and an air cylinder 124 for driving the grips 122.
- the grip part 122 includes a T-shaped arm 126 and a holding member 128 fixed to the tip of the arm 126.
- a base end of the arm 126 is rotatably connected to the base 120.
- the holding member 128 is a rod-shaped member.
- the tip of the arm 126 is formed in a U shape, and a holding member 128 is provided so as to bridge both ends thereof.
- a plurality of O-rings 130 are provided along the longitudinal direction of the holding member 128.
- FIG. 7 is a plan view illustrating a configuration of the support mechanism 88.
- FIG. FIG. 7A shows a state where the substrate W is not placed
- FIG. 7B shows a state where the substrate W is placed.
- the support member 104 includes a rectangular outer frame 140, a bridging portion 142 bridging the outer frame 140 left and right, and two bridging portions 144 bridging the front and rear of the outer frame 140. And is formed in a lattice shape as a whole. Six empty regions surrounded by the outer frame 140 and the bridging portions 142 and 144 have a relatively large area to promote the flow of the processing liquid.
- the protrusion 108 may have a prismatic or cylindrical shape, or may have a hemispherical shape. That is, a plurality of projections 108a are provided along the peripheral edge of the outer frame 140, and a plurality of projections 108b are provided along the longitudinal direction of the bridges 142, 144.
- the protrusion 108b is slightly smaller than the protrusion 108a.
- a band-like (lattice-like) contactable area 148 is set on the lower surface of the substrate W so as to correspond to the arrangement of the plurality of projections 108.
- the contactable area 148 is an area where contact is allowed for transporting the substrate and the like, for example, an area where circuits such as wiring and bumps are not mounted.
- the substrate W is placed on the plurality of protrusions 108 in the contactable area 148. That is, the mounting portion of the substrate W is floated from the surface of the support member 104, so that the cleaning liquid can reliably flow.
- a contactable area similar to the lower surface is formed on the upper surface of the substrate W. Even if both surfaces of the substrate W are placed on the support member 104, the cleaning and drying can be performed similarly.
- FIGS. 8 and 9 are diagrams illustrating the configuration and operation of the clamp mechanism 106.
- FIG. FIG. 8A shows an unclamped state
- FIG. 8B shows a clamped state.
- FIG. 9A is a cross-sectional view showing the function and operation of the clamp mechanism 106 during cleaning and drying.
- FIG. 9B is an enlarged view of a portion B in FIG. 9A.
- the clamp mechanism 106 has an actuator 150 provided above the elevating shaft 102 and an arm 152 driven by the actuator 150.
- the actuator 150 includes an air cylinder, and includes a cylinder body 154, a support 156 provided on the cylinder body 154, and a piston rod 158 extending from the cylinder body 154.
- the arm 152 has an L-shaped main body 160.
- the main body 160 is connected to the piston rod 158 via an L-shaped connecting member 162.
- One end of the connecting member 162 is fixed to the main body 160, and is rotatably supported by the support 156 at the center thereof.
- a slit 163 is provided at the other end of the connecting member 162, and the tip of the piston rod 158 is slidably inserted.
- a fluid passage 164 that penetrates the main body 160 from its front end to its rear end is formed.
- a piping joint 166 is provided at the rear end of the main body 160.
- a pipe (not shown) is connected to the pipe joint 166, and can supply dry air (CDA) or deionized water (DIW) to the fluid passage 164.
- CDA dry air
- DIW deionized water
- the fluid is ejected from the tip of the main body 160, and the fluid pressure acts as a clamping force.
- the substrate W can be held between them.
- deionized water is supplied to the fluid passage 164.
- the dry air is supplied to the fluid passage 164 while the support member 104 is moving up and down or at the ascending position. That is, except when the clamp mechanism 106 opens the substrate W, any fluid is sprayed to press the substrate W against the support member 104. Thereby, the substrate W is supported.
- an O-ring 168 (seal ring) is provided on the distal end surface of the main body 160.
- FIG. 10 is a diagram illustrating a state during the drying process.
- the drying mechanism 56 is driven while the substrate W is supported by the clamp mechanism 66.
- the air knife 74 injects air toward the substrate W while the drying mechanism 56 moves along the guide rail 70 as illustrated.
- the substrate W is located between the air knife 74a and the air knife 74b. Therefore, the upper and lower surfaces are efficiently dried by both air knives.
- the support member 104 is retracted to the drained cleaning tank 92, and drying by the drying mechanism 110 is performed.
- the water droplets attached to the protrusions 108 are removed by the air jetted from the air nozzles 112.
- the first drying process by the drying mechanism 56 and the second drying process by the drying mechanism 110 are performed in parallel.
- FIG. 11 is a flowchart illustrating the flow of the pre-cleaning process.
- 12 and 13 are diagrams illustrating a control method in the pre-cleaning step. (A) to (d) of each figure show the processing steps.
- the supply valve 170, the discharge valve 172, and the switching valve 174 are shown only in FIG. 12A, and are not shown in other drawings.
- a description will be given based on FIG. 11 with reference to FIGS. 12 and 13 as appropriate.
- the control unit 6 drives the lifting mechanism 90 and the substrate transport robot 22 to load the substrate W into the cleaning device 14 (S10).
- the lifting mechanism 90 raises the support member 104 to the load position.
- the substrate transport robot 22 takes out the substrate W from the substrate delivery table 8 while holding it in a horizontal posture, and places the substrate W on the support member 104.
- the robot hand 22a is located on the upper surface side of the substrate W and holds the substrate W.
- dry air is also supplied through the fluid passage 164, and the clamp mechanism 106 clamps the substrate W (S12).
- the cleaning tank 92 is empty.
- the controller 6 drives the elevating mechanism 90 while maintaining the clamped state of the substrate W, and lowers the support member 104 to the cleaning tank 92 (S14).
- the substrate W is disposed in the cleaning tank 92.
- the control unit 6 opens the supply valve 170 to supply deaerated water to the cleaning tank 92, and executes a pre-wet process while overflowing (S16).
- deionized water is supplied through the fluid passage 164, and the clamp mechanism 106 maintains the clamped state of the substrate W.
- the inside of the resist opening of the substrate W is filled with degassed water, and bubbles are removed.
- the time of the pre-wet process is set to 60 seconds.
- the supply valve 170 is closed, the discharge valve 172 is opened, and the water is drained (S18).
- the control unit 6 operates the switching valve 174 to switch the processing liquid to ozone water. Further, the discharge valve 172 is closed, the supply valve 170 is opened, and the ozone water is supplied to the cleaning tank 92, and the cleaning process is performed while overflowing (S20). Since the inside of the resist opening of the substrate W is already filled with degassed water, the degassed water is replaced with ozone water, and organic substances and the like attached to the surface of the substrate W are removed by the action of the ozone water to increase the hydrophilicity. Can be In this embodiment, the time for this cleaning process is set to 60 seconds. When the cleaning process is completed, the supply valve 170 is closed, the discharge valve 172 is opened, and the water is drained (S22).
- the control unit 6 operates the switching valve 174 to switch the processing liquid to deionized water (DIW). Further, the discharge valve 172 is closed, the supply valve 170 is opened, and deionized water is supplied to the cleaning tank 92, and a rinsing process is performed while overflowing (S24). At this time, the supply of deionized water is also performed via the fluid passage 164 of the clamp mechanism 106. In this embodiment, the rinsing time is 30 seconds. When the rinsing process is completed, the supply valve 170 is closed, the discharge valve 172 is opened, and the water is drained (S26). The supply of deionized water via the fluid passage 164 is also stopped, and the supply is switched to the supply of dry air.
- DIW deionized water
- the control unit 6 drives the elevating mechanism 90 in parallel with the drainage to raise the support member 104 to the drying position (S28). Then, the transfer of the substrate W from the support mechanism 88 to the support mechanism 54 is performed (S30). At this time, the substrate W is clamped by the clamp mechanism 66, and the clamp of the clamp mechanism 106 is released. The supply of the dry air through the fluid passage 164 is stopped. When the transfer of the substrate W is completed, as shown in FIG. 13A, the support member 104 is lowered (S32). In this embodiment, the height of the support member 104 at this time is made to match the height at the time of cleaning. In a modified example, the height may be different.
- the control unit 6 simultaneously drives the drying mechanism 56 and the drying mechanism 110 (S34). As shown in FIG. 13B, the air knife 74 dries the substrate W, and the air nozzle 112 dries the support member 104 (the protrusion 108). At this time, air is also supplied via the fluid passage 164 of the clamp mechanism 106. Since the first and second drying processes are performed simultaneously and in parallel as described above, the effects of the liquid splash generated in each of the drying processes can be suppressed. In this embodiment, the time for these drying processes is 30 seconds.
- the air knife 74 does not reciprocate with respect to the substrate W, but ends the drying process by one-way operation.
- the air blow is stopped and returns to the original position.
- the supply of air via the fluid passage 164 is stopped.
- the control unit 6 drives the elevating mechanism 90 to move the support member 104 to the load position (S36). Then, the transfer of the substrate W from the support mechanism 54 to the support mechanism 88 is performed (S38). After the substrate W is placed on the support member 104 again, the clamp of the clamp mechanism 66 is released.
- the control unit 6 drives the substrate transfer robot 22 to unload the substrate W (S40).
- the substrate transport robot 22 takes out the substrate W from the support member 104 and transports the substrate W to the attachment / detachment mechanism 20. Thereafter, the above-described plating process is started.
- the substrate W is transferred to the cleaning device 16 and the post-cleaning process is performed.
- the configuration and operation of the cleaning device 16 are almost the same as those of the cleaning device 14, but the processing liquid supplied to the cleaning tank 92 is only deionized water (DIW).
- DIW deionized water
- the cleaning process can be performed by placing the substrate W on the support member 104 and moving it up and down while maintaining the horizontal posture.
- the transfer of the substrate W during the drying process is also performed while the substrate W is mounted on the support member 104, so that the support mode can be stably switched from mounting to holding. Therefore, the substrate W does not bend in a series of processing steps and does not interfere with other structures. That is, even if the substrate W is a large and thin substrate, it can be stably processed.
- the support member 104 by providing a plurality of projections 108 on the support member 104 in a scattered manner and using the projections 108 as a mounting surface, most of the lower surface of the substrate W can be opened to the cleaning liquid, and the entire upper and lower surfaces of the substrate W The cleaning liquid can be spread over the entire surface, and the cleaning effect can be enhanced.
- the drying of the substrate W and the drying of the support member 104 are simultaneously performed in parallel, it is possible to suppress adverse effects such as liquid splashing from the substrate W, which wets the projection 108. Since the support member 104 is dried in the cleaning tank 92, the water droplets blown off at that time can be retained in the cleaning tank 92 and discharged from the discharge port 100 as it is. There is no contamination of the structure outside the cleaning tank 92.
- FIG. 15 is a perspective view illustrating a configuration of a cleaning unit according to the second embodiment.
- the present embodiment is different from the first embodiment in that the cleaning unit is not of the type in which the substrate is immersed in the cleaning liquid, but of the type in which the cleaning liquid is sprayed on the surface of the substrate (also called "shower type").
- the cleaning unit is not of the type in which the substrate is immersed in the cleaning liquid, but of the type in which the cleaning liquid is sprayed on the surface of the substrate (also called "shower type").
- shown type also called “shower type”
- the case 80 functions as a “treatment tank 82 (cleaning tank 92)”.
- the processing tank 82 is provided with a supply mechanism 284, a lifting mechanism 90, and a support mechanism 288.
- the supply mechanism 284 includes a first supply mechanism 211 and a second supply mechanism 212.
- the first supply mechanism 211 includes a pair of movable supply pipes 214a and 214b (when these are not particularly distinguished, they are collectively referred to as “supply pipes 214”).
- the supply pipes 214a and 214b have vertical rotation axes at two corners of the processing tank 82, respectively. These rotating shafts are arranged so as to be separated along one diagonal line of the processing tank 82.
- the supply pipe 214 extends horizontally from its rotation axis.
- the supply pipe 214 is located above the processing tank 82.
- a plurality of nozzles 218 are provided on the lower surface of the supply pipe 214 along the extending direction.
- the nozzle 218 functions as a “processing liquid injection nozzle”.
- the cleaning liquid is supplied downward from the supply pipe 214.
- the supply pipe 214b is located higher than the supply pipe 214a so that the supply pipes 214a and 214b do not interfere with each other when rotated.
- the second supply mechanism 212 has a plurality of supply pipes 224 arranged in parallel at the bottom of the processing tank 82.
- a plurality of nozzles 228 are provided on the upper surface of the supply pipe 224 along the extending direction thereof.
- the nozzle 228 functions as a “processing liquid injection nozzle”.
- the cleaning liquid is supplied upward from the supply pipe 224.
- a discharge port (not shown) is provided on the bottom surface of the processing tank 82.
- the cleaning liquid supplied from the supply pipes 214 and 224 flows on the bottom surface of the processing tank 82 after cleaning the substrate, and is discharged from the discharge port.
- the support mechanism 288 includes a rectangular plate-shaped support member 204 and the clamp mechanisms 106 arranged at four corners around the support member 204.
- the support member 204 is formed in a lattice shape having four empty regions.
- a plurality of projections 208 are provided on the upper surface of the support member 204 along the lattice shape.
- a rod-shaped reinforcing member 206 that bridges the protrusion 208 is provided on two sides of the support member 204.
- a substrate is placed on these projections 208.
- FIG. 16 is a perspective view illustrating the operation of the cleaning unit 252 during cleaning.
- the cleaning unit 252 is driven in a state where the substrate W is mounted on the mounting surface (projection 208) of the support member 204 and is clamped by the clamp mechanism 106, the cleaning liquid is supplied from the nozzle 218 while rotating the supply pipe 214. Inject. The cleaning liquid is simultaneously sprayed from the nozzle 228 of the supply pipe 224. Thereby, the cleaning liquid is sprayed on the upper and lower surfaces of the substrate W.
- the supply pipe 214 sprays the cleaning liquid in such a manner as to scan the upper surface of the substrate W while rotating about 90 degrees (see a two-dot chain line arrow in the figure).
- the supply pipe 214 may be repeatedly scanned to spray the cleaning liquid onto the substrate. In that case, it is preferable that the supply pipe 214 be scanned in one direction in order to flush and discharge the cleaning liquid on the substrate in one direction. Further, in order to improve the drainage of the cleaning liquid from the substrate surface, it is preferable to perform the cleaning process with the support member 204 slightly inclined from the horizontal.
- the posture (horizontal posture) of the substrate W at the time of cleaning and the drying method are the same as those of the first embodiment. Therefore, the same effect as in the first embodiment can be obtained.
- FIG. 14 is a cross-sectional view illustrating a clamp structure according to a modification.
- FIG. 14A shows a first modification
- FIG. 14B shows a second modification.
- an O-ring 168 is provided at the tip of the arm 152 as shown in FIG.
- the enlarged diameter portion 210 is provided at the tip of the arm 260 without providing the O-ring.
- the material of at least the distal end portion of the arm 260 has low hardness.
- the distal end of the arm 262 has a spherical shape without providing a fluid passage.
- the supply of dry air or deionized water by the clamp mechanism is not performed.
- the peripheral edge of the substrate W is held between the arm 262 and the support member 104.
- the contact area can be kept small by bringing the arm 262 into a point contact state with the substrate W, so that damage to the substrate W can be suppressed and contamination due to contact can be minimized.
- the material of at least the distal end of the arm 262 be low in hardness.
- the pre-cleaning section 10 and the plating section 4 are set in different areas.
- the function of the pre-cleaning unit 10 may be incorporated in the plating unit.
- a pre-cleaning tank may be provided between the pre-wet tank 30 and the pre-soak tank 32 to perform ozone water cleaning and rinsing.
- the support member 104 has a lattice shape (frame shape) divided into six frame regions, but the number of frame regions is not limited to six. Can be set appropriately according to the arrangement of the contactable area 148 set on the substrate W.
- a plurality of types of support members that can be replaced according to the type of the substrate may be prepared so as to be detachable from the cleaning unit. This takes into account that the layout of the mounting area and the non-mounting area differs depending on the type of the substrate.
- the plurality of types of support members have a size, a shape, and a layout of protrusions corresponding to a non-mounting region (contactable region) of any of the substrates. With such a configuration, it is possible to cope with substrates of various sizes and mounting layouts.
- the presence or absence of the ozone water cleaning in the pre-cleaning process may be determined depending on the time from the cleaning of the substrate W in the upstream process to the delivery of the substrate W to the plating apparatus 1. Good. Even when the substrate W is cleaned in the upstream process, an organic substance may adhere again to the seed layer exposed at the resist opening of the substrate W with the passage of time. Therefore, specifically, the control unit (management unit) obtains information on the time when each substrate W has been cleaned in the upstream process, and calculates the elapsed time until the substrate W is set on the substrate delivery table 8.
- ozone cleaning may be performed, and if less than the predetermined time, ozone cleaning may be omitted. That is, the presence or absence of ozone water cleaning may be determined according to the estimated contamination level of the substrate W. Alternatively, the ozone cleaning time may be changed according to the contamination level. Excessive ozone cleaning may damage the seed layer (conductive layer), and thus it is preferable to set such optimum cleaning conditions.
- the substrate W when supplying the processing liquid to the cleaning tank 92, the substrate W may be slightly tilted at least until the substrate W is immersed. Specifically, in the state shown in FIG. 5, the operation of the four elevating shafts 102 is adjusted, and the support member 104 is tilted by a small angle with respect to the horizontal plane (for example, about 1/1000 to 1/100). At this time, the overflow tank 94 side (right side) is made lower.
- the substrate W is gradually immersed in the processing liquid from the right side to the left side.
- the space between the lower surface of the substrate W and the liquid level of the processing liquid gradually moves to the left, that is, moves the air to the opposite side to the overflow tank 94.
- This makes it difficult for bubbles to flow into the overflow tank 94.
- the substrate W may be returned horizontally after the substrate W is sufficiently immersed in the processing liquid. After the degassed water washing is completed, it may be returned to a horizontal position.
- the clamp portion can be processed simultaneously with the processing of the substrate main body, and the efficiency of the entire substrate processing increases.
- the present invention is not limited to the above-described embodiments and modified examples, and can be embodied by modifying the constituent elements without departing from the gist.
- Various inventions may be formed by appropriately combining a plurality of components disclosed in the above embodiments and modifications.
- some constituent elements may be deleted from all the constituent elements shown in the above-described embodiments and modified examples.
- the present invention is applicable to a substrate processing apparatus for processing a substrate with a processing liquid.
Landscapes
- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
図1は、第1実施例に係るめっき装置を模式的に表す平面図である。
めっき装置1は、基板着脱部2、めっき処理部4および制御部6を備える。本実施例のめっき装置1は、基板上に突起状の電極(バンプ)を形成するためのバンプめっき装置である。基板着脱部2の前方に基板受渡台8が設けられ、基板受渡台8に隣接するように前洗浄部10および後洗浄部12が設けられている。なお、めっき装置1の前方には、上流工程で処理された基板を基板受渡台8に受け渡す装置が設けられるが、その説明については省略する。
まず、基板搬送ロボット22が基板受渡台8からめっき対象の基板Wを取り出し、洗浄装置14にセットする。洗浄装置14は、基板Wを受け取ると、有機物等を除去する前洗浄処理を実行する。この洗浄処理の詳細については後述する。前洗浄が終了すると、基板搬送ロボット22が洗浄装置14から基板Wを受け取り、着脱機構20に渡す。着脱機構20は、基板Wを基板ホルダ24にセットし、把持機構26に装着する。
図2は、洗浄装置14の全体構成を表す斜視図である。
洗浄装置14は、平板状のベース50と、ベース50に搭載された洗浄ユニット52と、洗浄ユニット52の上方で基板Wを支持する支持機構54と、洗浄ユニット52の上方で基板Wを乾燥させる乾燥機構56を備える。支持機構54は、乾燥処理時に基板Wを支持する機構であり、「把持部」として機能する。乾燥機構56は、基板Wを乾燥させる機構である。
図5に示すように、洗浄槽92の排出口100に連通するようにドレイン管114が設けられている。洗浄槽92の処理液は、ドレイン管114を介して排出される。また、オーバーフロー槽94の底部にも排出口116およびドレイン管118が設けられている。洗浄槽92からオーバーフローした処理液は、ドレイン管118を介して排出される。
図7(a)に示すように、支持部材104は、長方形状の外枠140と、外枠140を左右に架け渡す架橋部142と、外枠140の前後に架け渡す2つの架橋部144を有し、全体として格子状に形成されている。外枠140と架橋部142,144とに囲まれる6つの空領域が比較的大きな面積を有し、処理液の流通を促進する。
基板Wの乾燥時には、クランプ機構66により基板Wを支持した状態で乾燥機構56を駆動する。このとき、図示のように乾燥機構56がガイドレール70に沿って移動しつつ、エアナイフ74が基板Wに向けてエアを噴射する。この乾燥過程において、基板Wはエアナイフ74aとエアナイフ74bとの間に位置する。このため、両エアナイフによりその上下面が効率的に乾燥される。
図11は、前洗浄処理の流れを表すフローチャートである。図12および図13は、前洗浄工程における制御方法を表す図である。各図の(a)~(d)は処理過程を示す。便宜上、供給弁170、排出弁172および切替弁174については、図12(a)にのみ示し、その他の図では記載を省略している。以下、図11に基づき、図12,図13を適宜参照しながら説明する。
図15は、第2実施例に係る洗浄ユニットの構成を表す斜視図である。
本実施例は、洗浄ユニットが基板を洗浄液に浸漬するタイプではなく、洗浄液を基板の表面に噴射するタイプ(「シャワー式」ともいう)である点で第1実施例と異なる。以下、第1実施例との相異点を中心に説明する。本実施例において特に言及しない限り、第1実施例と同様の構成を適用することができる。
基板Wが支持部材204の載置面(突起部208)に載置され、クランプ機構106にクランプされた状態で洗浄ユニット252が駆動されると、供給管214が回動しつつノズル218から洗浄液を噴射する。供給管224のノズル228からも同時に洗浄液が噴射される。それにより、基板Wの上下面に洗浄液が噴き付けられる。このとき、供給管214は、約90度回動しながら基板Wの上面をスキャンする態様で洗浄液を噴き付ける(図中二点鎖線矢印参照)。なお、供給管214を繰り返しスキャンさせて洗浄液を基板に噴き付けても良い。その場合、基板上の洗浄液を一方向に押し流して排出するため、供給管214をスキャンさせる方向を一方向とすることが好ましい。また、基板表面における洗浄液の排出性を向上させるために、支持部材204を水平からやや傾けた状態で洗浄処理を行うのが好ましい。
上記実施例のクランプ機構では、図9(b)に示したように、アーム152の先端にOリング168を設け、基板Wへの接触に対処した。第1変形例では、Oリングを設けることなく、アーム260の先端に拡径部210を設ける。これにより、基板Wにおいて流体圧力が作用する面積を大きくできるため、アーム260による把持力を高めることができる。この場合、アーム260における少なくとも先端部の材質を低硬度のものとするのが好ましい。
Claims (9)
- 基板を水平姿勢にて載置させる載置面を有する支持部と、
基板に処理液を供給して基板を処理するための処理槽と、
基板を前記処理槽内へ降下および前記処理槽から上昇させるために前記支持部を昇降させる昇降部と、
前記処理槽の上方において、前記支持部に支持された基板の外周部を把持して前記支持部から基板を受け取る把持部と、
前記把持部により把持された基板に気体を噴きつけて前記基板を乾燥させる第1のノズルと、
を備える基板処理装置。 - 前記支持部は、
枠体と、
前記枠体の上面に突出し、前記載置面を構成する複数の突起部と、
を含む請求項1に記載の基板処理装置。 - 制御部をさらに備え、
前記制御部は、前記把持部が前記基板を把持した後に前記支持部を降下させるように前記昇降部を制御する、
請求項2に記載の基板処理装置。 - 前記処理槽に処理液を供給する処理液供給部と、
前記処理槽から処理液を排出する処理液排出部と、
をさらに備え、
前記制御部は、前記支持部の上昇前又は上昇後に前記処理槽内の処理液を排出するように前記処理液排出部を制御する、
請求項3に記載の基板処理装置。 - 前記支持部の載置面に気体を噴きつけて前記載置面を乾燥させる第2のノズルをさらに備える、請求項4に記載の基板処理装置。
- 前記第2のノズルは、処理液が排出された前記処理槽内に降下した前記支持部の前記載置面を乾燥させる、請求項5に記載の基板処理装置。
- 基板の上面を支持する支持面を有し、前記基板を水平姿勢に維持しながら前記基板を前記支持部の載置面に受け渡し、および前記載置面から受け取る基板搬送部を備え、
前記制御部は、
前記第2のノズルにより前記載置面を乾燥させた後、前記支持部を上昇させ、前記把持部に把持された基板を前記支持部の前記載置面にて支持するように前記昇降部を制御し、
前記基板搬送部は、前記載置面に支持された基板を受け取る、請求項5又は6に記載の基板処理装置。 - 前記処理槽は基板洗浄槽を含み、
前記処理液供給部は、複数種類の洗浄液を順次前記基板洗浄槽に供給する、請求項4~7のいずれかに記載の基板処理装置。 - 前記処理槽内にて前記支持部に支持された基板の表面に処理液を噴き付ける処理液噴射ノズルをさらに備える、請求項1~3のいずれかに記載の基板処理装置。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201980057260.3A CN112640058B (zh) | 2018-09-06 | 2019-08-20 | 基板处理装置 |
| KR1020217009534A KR102731360B1 (ko) | 2018-09-06 | 2019-08-20 | 기판 처리 장치 |
| US17/269,807 US12020954B2 (en) | 2018-09-06 | 2019-08-20 | Substrate processing apparatus |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018166484 | 2018-09-06 | ||
| JP2018-166484 | 2018-09-06 | ||
| JP2019-143470 | 2019-08-05 | ||
| JP2019143470A JP7291030B2 (ja) | 2018-09-06 | 2019-08-05 | 基板処理装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020050009A1 true WO2020050009A1 (ja) | 2020-03-12 |
Family
ID=69722512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2019/032450 Ceased WO2020050009A1 (ja) | 2018-09-06 | 2019-08-20 | 基板処理装置 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US12020954B2 (ja) |
| WO (1) | WO2020050009A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023148869A1 (ja) * | 2022-02-03 | 2023-08-10 | 株式会社荏原製作所 | めっき装置及び乾燥方法 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11805597B2 (en) * | 2019-03-12 | 2023-10-31 | Carnegie Mellon University | Liquid metal circuits and methods of making the same |
| US11938521B2 (en) * | 2021-11-17 | 2024-03-26 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method and apparatus for semiconductor wafer cleaning |
| JP7485728B2 (ja) * | 2022-06-20 | 2024-05-16 | 株式会社Screenホールディングス | 基板処理装置、基板処理装置の制御方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05315314A (ja) * | 1992-05-08 | 1993-11-26 | Fujitsu Ltd | 基板用処理液の攪拌方法及び基板液処理装置 |
| JPH11145099A (ja) * | 1997-11-07 | 1999-05-28 | Dainippon Screen Mfg Co Ltd | 基板処理装置 |
| JP2015220369A (ja) * | 2014-05-19 | 2015-12-07 | 東京エレクトロン株式会社 | 基板液処理装置、基板液処理方法及び記憶媒体 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200405405A (en) | 2002-08-19 | 2004-04-01 | Sumitomo Prec Prod Co | Vertical movement substrate processing apparatus and substrate processing system having the same |
| KR100529432B1 (ko) | 2003-02-04 | 2005-11-17 | 동부아남반도체 주식회사 | 반도체 기판의 세정 장치 |
| US7290976B2 (en) * | 2005-06-28 | 2007-11-06 | Applied Materials, Inc. | Semiconductor substrate processing apparatus with a passive substrate gripper |
| KR101421752B1 (ko) | 2008-10-21 | 2014-07-22 | 도쿄엘렉트론가부시키가이샤 | 기판 처리 장치 및 기판 처리 방법 |
| JP5088335B2 (ja) | 2009-02-04 | 2012-12-05 | 東京エレクトロン株式会社 | 基板搬送装置及び基板処理システム |
| KR20110106178A (ko) | 2010-03-22 | 2011-09-28 | 삼성전자주식회사 | 기판 처리 장치 및 방법 |
| JP6061378B2 (ja) | 2012-11-05 | 2017-01-18 | 株式会社Screenホールディングス | 基板処理装置 |
| JP6157694B1 (ja) | 2016-06-28 | 2017-07-05 | 株式会社荏原製作所 | 洗浄装置、これを備えためっき装置、及び洗浄方法 |
-
2019
- 2019-08-20 WO PCT/JP2019/032450 patent/WO2020050009A1/ja not_active Ceased
- 2019-08-20 US US17/269,807 patent/US12020954B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05315314A (ja) * | 1992-05-08 | 1993-11-26 | Fujitsu Ltd | 基板用処理液の攪拌方法及び基板液処理装置 |
| JPH11145099A (ja) * | 1997-11-07 | 1999-05-28 | Dainippon Screen Mfg Co Ltd | 基板処理装置 |
| JP2015220369A (ja) * | 2014-05-19 | 2015-12-07 | 東京エレクトロン株式会社 | 基板液処理装置、基板液処理方法及び記憶媒体 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023148869A1 (ja) * | 2022-02-03 | 2023-08-10 | 株式会社荏原製作所 | めっき装置及び乾燥方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20210391190A1 (en) | 2021-12-16 |
| US12020954B2 (en) | 2024-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7291030B2 (ja) | 基板処理装置 | |
| JP6331961B2 (ja) | 基板液処理装置 | |
| JP3786549B2 (ja) | 半導体湿式エッチング装置 | |
| WO2020050009A1 (ja) | 基板処理装置 | |
| JP2000306881A (ja) | 基板洗浄乾燥装置 | |
| JP6157694B1 (ja) | 洗浄装置、これを備えためっき装置、及び洗浄方法 | |
| CN103286089A (zh) | 基板清洗装置以及清洗方法 | |
| JP2004327962A (ja) | レジストの剥離装置及び剥離方法 | |
| JP2001044106A (ja) | ウエット装置 | |
| TWI873725B (zh) | 基板處理裝置 | |
| KR101052821B1 (ko) | 기판 처리 장치 및 그 방법 | |
| TW202331909A (zh) | 基板處理裝置及基板處理方法 | |
| JP2004327475A (ja) | 現像処理方法及び現像処理装置 | |
| JP6088099B1 (ja) | 洗浄装置、これを備えためっき装置、及び洗浄方法 | |
| JP3232443B2 (ja) | 液処理方法及びその装置 | |
| JP3450200B2 (ja) | 基板処理装置 | |
| KR102357841B1 (ko) | 기판 이송 장치 | |
| JP2004162129A (ja) | めっき装置及びめっき方法 | |
| JP2007042691A (ja) | 基板処理法及び基板処理装置 | |
| JP2000133629A (ja) | 基板処理装置および方法 | |
| TW202607880A (zh) | 基板處理裝置 | |
| WO2023148869A1 (ja) | めっき装置及び乾燥方法 | |
| TW202606003A (zh) | 基板處理裝置 | |
| TW202332807A (zh) | 鍍覆裝置及乾燥方法 | |
| JP3343845B2 (ja) | 処理装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19857395 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 20217009534 Country of ref document: KR Kind code of ref document: A |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 19857395 Country of ref document: EP Kind code of ref document: A1 |
|
| WWG | Wipo information: grant in national office |
Ref document number: 201980057260.3 Country of ref document: CN |