WO2022060143A1 - 초음파 세정 장치 - Google Patents
초음파 세정 장치 Download PDFInfo
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- WO2022060143A1 WO2022060143A1 PCT/KR2021/012743 KR2021012743W WO2022060143A1 WO 2022060143 A1 WO2022060143 A1 WO 2022060143A1 KR 2021012743 W KR2021012743 W KR 2021012743W WO 2022060143 A1 WO2022060143 A1 WO 2022060143A1
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- block
- ultrasonic
- fluid
- disposed
- chamber
- Prior art date
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- 238000004506 ultrasonic cleaning Methods 0.000 title claims abstract description 59
- 239000012530 fluid Substances 0.000 claims abstract description 86
- 238000002347 injection Methods 0.000 claims description 39
- 239000007924 injection Substances 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 17
- 238000000638 solvent extraction Methods 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 16
- 239000010419 fine particle Substances 0.000 description 18
- 238000005192 partition Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000005108 dry cleaning Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
Definitions
- the present invention relates to an ultrasonic cleaning apparatus, and more particularly, to an apparatus for cleaning a workpiece using ultrasonic waves.
- Laser processing has the advantage of being able to precisely process a product of a very small size, but there is a problem in that fine particles are generated during the processing process.
- highly integrated products have complex patterns, it is not easy to remove the generated fine particles.
- a dry cleaning apparatus using ultrasonic waves is used to remove such fine particles.
- the conventional ultrasonic cleaning apparatus has an excessively wide frequency range and low amplitude, so that only relatively large-sized fine particles can be removed, and small-sized fine particles cannot be properly removed.
- the fine particles cannot be properly removed.
- the present invention is to solve the above problems, and it is possible to easily remove fine particles from a workpiece by generating ultrasonic waves of a desired amplitude and frequency using an ultrasonic cleaning apparatus of a fluid medium including a resonance cavity.
- An object of the present invention is to provide an ultrasonic cleaning device that can
- Ultrasonic cleaning apparatus is a body having an injection port disposed to face a workpiece, a first chamber disposed on one side of the body, a first chamber to which a fluid is supplied, disposed on the other side of the body, and the external
- An ultrasonic generator comprising: a second chamber for sucking air; and a resonance cavity disposed within the first chamber, wherein a stationary pressure wave is generated by the fluid supplied to the first chamber;
- the ultrasonic cleaning apparatus may generate ultrasonic waves having a desired frequency and/or amplitude in consideration of a workpiece and/or contaminants present on the workpiece.
- the frequency width of the generated ultrasonic waves can be narrowed and the amplitude can be increased, so that fine particles below the boundary layer formed by the viscous resistance of air can be strongly vibrated.
- the ultrasonic cleaning apparatus may use an ultrasonic generator to change a frequency and/or an amplitude to easily clean various workpieces.
- the ultrasonic cleaning apparatus may constructively interfere with ultrasonic waves generated from an ultrasonic generator to more reliably clean a workpiece.
- the ultrasonic cleaning apparatus can more reliably clean a workpiece using ultrasonic waves of different frequencies generated by the ultrasonic generator.
- FIG 1 shows an ultrasonic cleaning apparatus according to an embodiment of the present invention.
- FIG. 2 shows a cross section taken along line II-II in FIG. 1 .
- FIG. 3 is an enlarged view of III of FIG. 2 .
- FIG. 4 is an enlarged view of IV of FIG. 2 .
- FIG 5 shows an ultrasonic cleaning apparatus according to another embodiment of the present invention.
- FIG 6 shows an ultrasonic cleaning apparatus according to another embodiment of the present invention.
- FIG. 7 shows a cross section taken along lines VII-VII of FIG. 6 .
- FIG. 8 shows an example of a to-be-processed object.
- 9A, 9B, 10A, 10B, 11A, and 11B show the cleaning state of the workpiece according to the Comparative Example and the Inventive Example.
- Ultrasonic cleaning apparatus is a body having an injection port disposed to face a workpiece, a first chamber disposed on one side of the body, a first chamber to which a fluid is supplied, disposed on the other side of the body, and the external
- An ultrasonic generator comprising: a second chamber for sucking air; and a resonance cavity disposed within the first chamber, wherein a stationary pressure wave is generated by the fluid supplied to the first chamber;
- the ultrasonic generator branches the supplied fluid into a first path and a second path, and a first resonance cavity into which the fluid flowing along the first path is introduced; It may include a second resonant cavity into which the fluid flowing along the second path is introduced.
- the ultrasonic waves generated by the fluid introduced into the first resonance cavity and the ultrasonic waves generated by the fluid introduced into the second resonance cavity may have the same frequency.
- the ultrasonic waves generated by the fluid introduced into the first resonance cavity and the ultrasonic waves generated by the fluid introduced into the second resonance cavity cause constructive interference
- the injection hole may be disposed on the bottom surface of the body to inject the constructively interfered ultrasonic wave to the workpiece.
- the ultrasonic wave generated by the fluid introduced into the first resonance cavity and the ultrasonic wave generated by the fluid introduced into the second resonance cavity may have different frequencies.
- the two injection holes are disposed on the bottom surface of the body, the ultrasonic waves generated by the fluid introduced into the first resonance cavity, and the second injection hole introduced into the resonance cavity Ultrasonic waves generated by the fluid may be respectively sprayed onto the workpiece.
- the ultrasonic generator includes a fine slit having a flow cross-sectional area smaller than a flow cross-sectional area of the fluid flowing along the first chamber, and the resonance cavity is formed with the fine slit and connected, and the fluid passing through the fine slit may generate a steady pressure wave.
- the ultrasonic generator is disposed in a first block and spaced apart from the first block, and a second block in which the fine slit is disposed between the first block and the first block. Including, at least one of the first block and the second block may move in one direction, so that the distance between the fine slits may be adjustable.
- the ultrasonic generator includes a third block in which the resonance cavity is disposed between the second block and the adjustable length of the resonance cavity by moving in one direction.
- the ultrasonic generator partitions the resonance cavity and may include a fourth block having a tapered shape or a film shape toward the injection hole.
- the x-axis, the y-axis, and the z-axis are not limited to three axes on a Cartesian coordinate system, and may be interpreted in a broad sense including them.
- the x-axis, y-axis, and z-axis may be orthogonal to each other, but may refer to different directions that are not orthogonal to each other.
- a specific process sequence may be performed different from the described sequence.
- two processes described in succession may be performed substantially simultaneously, or may be performed in an order opposite to the order described.
- FIG. 1 shows an ultrasonic cleaning apparatus 10 according to an embodiment of the present invention
- FIG. 2 shows a cross-section taken along line II-II in FIG. 1
- FIG. 3 shows an enlarged view III of FIG. 2
- FIG. 4 is an enlarged view of IV of FIG. 2 .
- the ultrasonic cleaning apparatus 10 is an apparatus for dry cleaning the surface of a workpiece by generating ultrasonic waves having a frequency greater than or equal to an audible frequency using a fluid as a medium.
- the ultrasonic cleaning apparatus 10 may vibrate the fine particles under the boundary layer using ultrasonic waves to remove them from the workpiece.
- an ultrasonic cleaning apparatus 10 includes a body 110 , a first chamber 170 , a second chamber 190 , and an ultrasonic generator 210 . ) may be included.
- the body 110 is a member constituting the frame of the ultrasonic cleaning apparatus 10 and may support other members.
- the body 110 may have a rectangular parallelepiped shape having an internal space.
- the shape of the body 110 is not particularly limited, and may be appropriately selected in consideration of the size and type of the workpiece or cleaning strength.
- a first connector 130 and a second connector 150 may be disposed on the upper surface of the body 110 .
- the first connector 130 connects a first chamber 170 to be described later and a fluid supply unit (not shown).
- the fluid supplied from the fluid supply unit may be introduced into the first chamber 170 through the first connector 130 .
- the pressure of the fluid supplied from the fluid supply unit may be appropriately selected in consideration of the amplitude and/or frequency of the generated ultrasonic waves.
- FIG. 1 two first connectors 130 are shown to be disposed on the upper surface of the body 110 , but the number and positions thereof are not particularly limited.
- the second connector 150 connects a second chamber 190 to be described later and a suction unit (not shown). When the suction operation is performed by the suction unit, a negative pressure is generated in the second chamber 190 . Accordingly, external air and contaminants may be introduced into the second chamber 190 and then may move to the suction unit through the second connector 150 .
- a total of six second connectors 150 are provided, three each on the left and right sides of the upper surface of the body 110 , but the number and location thereof are not particularly limited.
- a first injection hole 113 may be disposed on one side of the body 110 .
- ultrasonic waves using the fluid that has passed through the first chamber 170 and the ultrasonic generator 210 to be described later as a medium is sprayed to the outside.
- the first injection hole 113 is disposed to face the workpiece, and the ultrasonic wave injected to the outside through the first injection hole 113 may wash the surface of the workpiece while colliding with the surface of the workpiece.
- the first chamber 170 is disposed on one side of the body 110 , and a fluid may be supplied thereto.
- the first chamber 170 may be disposed in the inner space of the body 110 , and may be connected to the first connector 130 to receive fluid from the fluid supply unit.
- the first chamber 170 may be partitioned by the guide wall 111 of the body 110 .
- the present invention is not limited thereto.
- the number of the first chambers 170 may correspond to the number of the first connectors 130 .
- the number of ultrasonic generators 210 to be described later may also correspond to the number of the first chambers 170 .
- the first chamber 170 will be mainly described as being divided into one space inside the body 110 .
- the second chamber 190 is disposed on the other side of the body 110 and may suck in external air.
- the second chamber 190 may be disposed in the inner space of the body 110 and may be connected to the second connector 150 .
- the suction unit connected to the second connector 150 performs a suction operation, external air and foreign substances may be sucked into the second chamber 190 .
- the second chamber 190 is illustrated as being disposed on both sides of the first chamber 170 one by one, but the present invention is not limited thereto.
- the second chamber 190 may be disposed in the center of the body 110
- the first chamber 170 may be disposed one at each side of the second chamber 190 .
- each second chamber 190 is shown as a single space in FIG. 2 , the present invention is not limited thereto.
- the number of the second chambers 190 may correspond to the number of the second connectors 150 .
- each of the second chambers 190 will be mainly described as being partitioned into one space inside the body 110 .
- the ultrasonic generator 210 uses the fluid introduced into the first chamber 170 as a medium to generate ultrasonic waves.
- the ultrasonic generator 210 is disposed in the first chamber 170, a resonance cavity (resonance) to form a stationary pressure wave (stationary pressure wave) using the fluid supplied to the first chamber 170 as a medium cavity) may be included.
- the ultrasonic cleaning apparatus 10 does not use an ultrasonic piezo actuator, but generates ultrasonic waves using a fluid as a medium.
- a fluid as a medium
- it is a resonance cavity that determines the frequency and amplitude of ultrasonic waves.
- the wave generated by the high-speed and high-pressure fluid is amplified through the resonant cavity to become ultrasound having a predetermined frequency, and the frequency and amplitude of the ultrasound generated by the shape or size of the cavity may vary.
- the frequency width of the generated ultrasonic wave is wide and the amplitude is low. This is because it is difficult to generate an ultrasonic wave having a desired frequency and amplitude because a stationary pressure wave is not generated by the resonant cavity.
- the ultrasonic generator 210 since the ultrasonic generator 210 includes a resonant cavity, a standing pressure wave may be generated within the resonant cavity. Accordingly, it is possible to generate ultrasonic waves having a desired frequency and amplitude. In particular, by narrowing the frequency width of the generated ultrasonic wave and increasing the amplitude, it is possible to strongly vibrate the fine particles below the boundary layer formed by the viscous resistance of air.
- the supplied fluid makes micro-vibrations (for example, in the vertical direction) and proceeds toward the fourth block 229 in the resonance cavity 225 . ) is ejected inside/outside.
- the ejected fluid moves inside / outside the resonant cavity, causing pressure fluctuations.
- the fluid has a periodic change in pressure inside the resonant cavity and amplifies the vibrations present in the resonant cavity.
- a standing pressure wave having a resonance frequency and a maximum amplitude is generated at the corresponding frequency (ie, a standing pressure wave having a narrow frequency band and an amplified amplitude is generated).
- the generated normal pressure wave can be resonantly (resonant) sprayed with the supplied fluid to clean the surface of the workpiece.
- the resonant cavity according to an embodiment of the present invention may be a Helmholtz resonance cavity to which the principle of a Helmholtz resonator is applied.
- the type of the resonant cavity according to an embodiment of the present invention is not limited thereto, and it is sufficient if the ultrasonic wave can be generated by generating a stationary pressure wave using a fluid as a medium.
- the ultrasonic generator 210 includes a support 211 , a first block 213 , a second block 217 , and a third block 221 , and , a first resonant cavity 225 may be included.
- the support 211 is disposed inside the first chamber 170 , and may support the ultrasonic generator 210 to be located in the first chamber 170 . In one embodiment, the support 211 may extend in one direction to be connected to both inner walls of the body 110 .
- the support 211 may branch the fluid supplied from the fluid supply unit through the first connector 130 . More specifically, as shown in FIG. 2 , the support 211 may be disposed to face the first connector 130 , and may branch the fluid sprayed from the first connector 130 into different paths. For example, the fluid injected from the first connector 130 collides with the support 211 , and then, when viewed in FIG. 2 , a first path that is the left side of the support 211 , and a second path that is the right side of the support 211 , when viewed in FIG. 2 . path can be moved.
- the first block 213 partitions the first fine slit 218 together with the second block 217 to be described later.
- the first block 213 may be connected to one side of the support 211 and disposed inside the first chamber 170 .
- the second block 217 may be disposed to be spaced apart from the first block 213 such that the first fine slit 218 is disposed between the second block 213 and the first block 213 .
- the second block 217 may be disposed on one side of the guide wall 111 partitioning the first chamber 170 .
- the cross-sectional area of the first fine slit 218 may be smaller than the cross-sectional area of the first connector 130 . More specifically, the flow cross-sectional area of the fluid supplied from the fluid supply unit to the first chamber 170 through the first connector 130 may be rapidly reduced while passing through the first fine slit 218 . Accordingly, the fluid is ejected from the first fine slit 218 at high speed and introduced into the first resonant cavity 225 to be described later. The wave generated by the fluid introduced into the first resonant cavity 225 may cause resonance inside the first resonant cavity 225 to generate an ultrasonic wave having a large amplitude and a specific frequency.
- the first block 213 and/or the second block 217 may approach or separate from each other. That is, at least one of the first block 213 and the second block 217 may move in one direction (eg, the X-axis direction of FIG. 3 ) to adjust the first distance d1 .
- the first distance d1 may correspond to an interval between the first fine slits 218 .
- first block 213 may be approached toward or spaced apart from the second block 217 in a state connected to the support 211 .
- second block 217 may be approached toward or spaced apart from the second block 217 in a state disposed on one surface of the guide wall 111 .
- the speed and/or pressure of the fluid ejected from the first fine slit 218 may be controlled, and the amplitude and/or frequency of the ultrasonic wave generated accordingly may be controlled.
- the third block 221 partitions the first resonant cavity 225 with the second block 217 .
- the third block 221 may be disposed to be spaced apart from the second block 217 by a third distance d3 downward.
- the third distance d3 may correspond to the length of the first resonant cavity 225 .
- the third block 221 may approach or be spaced apart from the second block 217 . More specifically, the third block 221 may be disposed on the guide wall 111 to be movable in one direction (eg, the Z-axis direction of FIG. 4 ). And as the third block 221 moves, the length of the first resonant cavity 225 partitioned by the second block 217 and the third block 221 may be adjusted.
- the frequency and/or amplitude of the standing pressure wave generated in the first resonant cavity 225 may be controlled, and accordingly, the frequency and/or amplitude of the generated ultrasonic wave may be controlled.
- the fourth block 229 is disposed on one side of the third block 221 to partition the first resonant cavity 225 together with the second block 217 and the third block 221 .
- one end of the fourth block 229 may be disposed to be spaced apart from the end of the second block 217 by a second distance d2.
- the fourth block 229 may be spaced apart from the second block 217 to form a first outlet 230 .
- the fluid and ultrasonic waves are injected to the outside of the first resonant cavity 225 through the first outlet 230 .
- the fourth block 229 may approach or be spaced from the second block 217 . More specifically, the fourth block 229 may be disposed to be movable in one direction (eg, the Z-axis direction of FIG. 4 ). And as the fourth block 229 moves, the length of the first outlet 230 divided by the second block 217 and the fourth block 229 may be adjusted.
- the frequency and/or amplitude of the ultrasonic waves injected to the first outlet 230 may be controlled.
- the fourth block 229 may have an inclined shape at one end. More specifically, as shown in FIG. 4 , the fourth block 229 may have a shape in which the inner end of the first chamber 170 is tapered at a first angle ⁇ . Accordingly, the fluid and ultrasonic waves emitted from the first resonant cavity 225 may move toward the first injection hole 113 along the inclined surface of the fourth block 229 .
- the fourth block 229 may have a thin film shape.
- the ultrasonic generator 210 may further include a first injection hole partition member 235 for partitioning the first injection hole 113 .
- the first injection hole partition member 235 may be provided at an end of the ultrasonic generator 210 .
- the fluid and ultrasonic waves emitted from the first resonant cavity 225 may be emitted to the outside of the ultrasonic cleaning apparatus 10 through the first injection hole 113 .
- first injection hole partition members 235 are provided, and the first injection hole 113 is partitioned therebetween, but the present invention is not limited thereto.
- the first injection hole partition member 235 is a single member, and may partition the first injection hole 113 between the guide wall 111 and the guide wall 111 .
- the first injection hole partition member 235 may be formed so that the inner edge of the first chamber 170 is rounded.
- the ultrasonic cleaning apparatus 10 can generate ultrasonic waves using a fluid as a medium by including a resonant cavity.
- the frequency and/or amplitude of ultrasonic waves may be adjusted by adjusting the arrangement relationship between elements constituting the ultrasonic generator 210 .
- the ultrasonic generator 210 may include a plurality of resonant cavities.
- the ultrasonic generator 210 includes a fifth block 215 , a sixth block 219 , a seventh block 223 , an eighth block 231 , and a second 2 resonant cavities 227 may be included.
- the fluid introduced into the first chamber 170 may be branched into a first path and a second path while colliding with the support 211 .
- the fluid moving along the first path may move toward the first block 213
- the fluid moving along the second path may move toward the fifth block 215 .
- the fifth block 215 , the sixth block 219 , the seventh block 223 , and the eighth block 231 are the first block 213 , the second block 217 , and the third block, respectively. It may be disposed at a position corresponding to the block 221 and the fourth block 229 . In addition, the configuration and function may be the same as that of the first block 213 , the second block 217 , the third block 221 , and the fourth block 229 , and a detailed description thereof will be omitted. .
- the second resonant cavity 227 is partitioned by a sixth block 219 , a seventh block 223 , and an eighth block 231 .
- a stationary pressure wave is similarly generated, thereby generating ultrasonic waves.
- the generated ultrasonic waves are emitted from the second resonant cavity 227 together with the fluid.
- the ultrasonic cleaning apparatus 10 can move the fluid to different paths, and generate ultrasonic waves therefrom to be sprayed.
- the frequencies of the ultrasonic waves generated in the first resonant cavity 225 and the second resonant cavity 227 may be the same, constructive interference may occur between the ultrasonic waves emitted through the first injection hole 113 . Accordingly, by spraying ultrasonic waves having a larger amplitude, the boundary layer or less formed on the surface of the workpiece is strongly vibrated by the viscous resistance of the air, so that fine-sized particles can be peeled off.
- FIG 5 shows an ultrasonic cleaning apparatus 10A according to another embodiment of the present invention.
- the arrangement relationship between the elements constituting the ultrasonic generator 210A may be slightly different in the ultrasonic cleaning apparatus 10A as compared with the ultrasonic cleaning apparatus 10 of the above-described embodiment.
- the rest of the configuration of the ultrasonic cleaning apparatus 10A may be the same as that of the ultrasonic cleaning apparatus 10 , and a detailed description thereof will be omitted.
- the ultrasonic generator 210A may include a first injection hole 113 and a second injection hole 114 . More specifically, as shown in FIG. 5 , at the end of the body 110 , a pair of first injection hole partition members 235 are disposed at the end of the guide wall 111 . In addition, a second injection hole partition member 237 may be disposed between the pair of first injection hole partition members 235 . The second injection hole partitioning member 237 is disposed to be spaced apart from the pair of first injection hole partitioning members 235 by a predetermined distance, and accordingly, the first injection hole 113 and the second injection hole 114 may be formed. .
- the ultrasonic generator 210A may further include a second support 212 .
- the second support 212 may be connected to the first support 211 and support the second injection hole partition member 237 .
- the third block 221 and the seventh block 223 may be disposed on the side of the second support 212 rather than the guide wall 111 .
- the third block 221 and the fourth block 229 of the ultrasonic generator 210A may be disposed opposite to each other.
- the fluid supplied from the fluid supply unit is branched from the support 211 and moves to a first path and a second path.
- the fluid moving along the first path generates ultrasonic waves while passing through the first resonant cavity 225 and is injected into the first injection hole 113 .
- the fluid moving along the second path generates ultrasonic waves while passing through the second resonant cavity 227 and is injected into the second injection hole 114 .
- the fluid moving along the first path and the second path may move along regions separated from each other in the first chamber 170 . That is, the fluid once branched may not share any space in the first chamber 170 until it is ejected to the outside.
- the positions of the block 223 and the eighth block 231 may be different from each other. More specifically, the interval between the first fine slits (reference numerals not shown) divided by the first block 213 and the second block 217 and the fifth block 215 and the sixth block 219 Intervals of the partitioned second fine slits (not shown) may be different from each other. Alternatively, the length of the first resonant cavity 225 defined by the first block 213 and the third block 221 and the second resonance defined by the fifth block 215 and the seventh block 223 .
- the lengths of the cavities 227 may be different.
- the lengths of the outlets (not shown) may be different from each other.
- the frequency and amplitude of the ultrasonic wave generated by the fluid moving along the first path and the frequency and amplitude of the ultrasonic wave generated by the fluid moving along the second path may be different from each other.
- the ultrasonic cleaning apparatus 10A can efficiently clean a workpiece using ultrasonic waves having different frequencies and amplitudes.
- FIG. 6 shows an ultrasonic cleaning apparatus 10B according to another embodiment of the present invention
- FIG. 7 shows a cross section taken along lines VII-VII of FIG. 6 .
- the ultrasonic cleaning apparatus 10B may be a cleaning apparatus for cleaning a large substrate.
- the ultrasonic cleaning apparatus 10B includes a first body 110A and a second body 120 , and the first body 110A may correspond to the body 110 of the above-described embodiment.
- the first body 110A has a first chamber 170 and a second chamber 190 disposed therein, and a second connector 150 connected to the suction unit may be connected thereto.
- the second body 120 is disposed on the upper surface of the first body 110A, and the first connector 130 connected to the fluid supply unit may be connected thereto.
- the first connector 130 may be disposed to extend in the inner space of the second body 120 .
- the first connector 130 may be provided with at least one injection hole (not shown) on the lower surface to be connected to the first chamber 170 of the first body 110 . Accordingly, the fluid supplied from the fluid supply unit may be supplied to the first connector 130 , and may be introduced into the first chamber 170 through the injection port.
- An ultrasonic generator 210 may be disposed inside the first chamber 170 .
- the configuration of the ultrasonic generator 210 may be the same as the configuration described above, and a detailed description thereof will be omitted.
- the ultrasonic generator 10B may have various sizes and shapes, and through this, may be applied to a cleaning process of a workpiece having various sizes and shapes.
- FIGS. 9A, 9B, 10A, 10B, 11A, and 11B show cleaning states of the workpiece according to Comparative Examples and Inventive Examples.
- the workpiece to be cleaned in the present invention may have complex and various patterns.
- the pattern formed on the workpiece may have a complex shape and height, and various steps may be formed between the patterns.
- fine particles of various sizes generated during the processing process may be disposed between the patterns of the workpiece.
- the frequency width of the ultrasonic wave can be narrowed through the resonance cavity and the amplitude can be further amplified, so that the fine particles below the boundary layer can be strongly vibrated. Accordingly, even fine particles having a relatively small size can be easily removed.
- the ultrasonic wave is diffracted or refracted while colliding with the pattern, and the intensity is weakened, so that it is impossible to properly remove the fine particles between the patterns.
- the invention example can spray ultrasonic waves with a strong amplitude, it is possible to easily remove even fine particles between complex patterns.
- the invention example can simultaneously spray ultrasonic waves having different frequencies and amplitudes, even in the case of a workpiece having patterns of various sizes and shapes, fine particles located between the patterns can be easily removed.
- the intensity of the ultrasonic wave reaching the workpiece is weakened, so that cleaning cannot be performed properly.
- the workpiece may be damaged by the ultrasonic wave and the fluid sprayed from the cleaning device.
- the invention since ultrasonic waves can be sprayed with a strong amplitude, it is possible to easily remove fine particles even if the distance from the workpiece is relatively long.
- the invention example can clean the workpiece while maintaining an appropriate distance at which the workpiece is not damaged.
- the ultrasonic cleaning apparatus 10 may generate ultrasonic waves having a desired frequency and/or amplitude in consideration of the workpiece and/or contaminants present on the workpiece.
- the frequency width of the generated ultrasonic waves can be narrowed and the amplitude can be increased, so that fine particles below the boundary layer formed by the viscous resistance of air can be strongly vibrated.
- the ultrasonic cleaning apparatus 10 may use the ultrasonic generator 210 to change a frequency and/or an amplitude to easily clean various workpieces.
- the ultrasonic cleaning apparatus 10 may constructively interfere with ultrasonic waves generated from the ultrasonic generator 210 to more reliably clean the workpiece.
- the ultrasonic cleaning apparatus 10 can more reliably clean a workpiece using ultrasonic waves of different frequencies generated by the ultrasonic generator 210 .
- connection or connection member of the lines between the components shown in the drawings exemplarily shows functional connections and/or physical or circuit connections, and in an actual device, various functional connections, physical connections that are replaceable or additional It may be expressed as a connection, or circuit connections.
- essential or "importantly"
- the present invention relates to a cleaning apparatus, and can be applied to a cleaning apparatus for cleaning a workpiece using an ultrasonic generator.
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- Cleaning By Liquid Or Steam (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims (10)
- 피가공물을 지향하도록 배치되는 분사구를 구비하는 바디;상기 바디의 일측에 배치되며, 유체가 공급되는 제1 챔버;상기 바디의 타측에 배치되며, 외부 공기를 흡입하는 제2 챔버; 및상기 제1 챔버 내에 배치되며, 상기 제1 챔버로 공급된 유체에 의해 정상 압력파(stationary pressure wave) 가 생성되는 공진 공동(resonance cavity)을 포함하는, 초음파 발생기;를 포함하는, 초음파 세정 장치.
- 제1 항에 있어서,상기 초음파 발생기는공급된 유체를 제1 경로와 제2 경로로 분기시키고,상기 제1 경로를 따라 유동하는 유체가 유입되는 제1 공진 공동; 및상기 제2 경로를 따라 유동하는 유체가 유입되는 제2 공진 공동;을 포함하는, 초음파 세정 장치.
- 제2 항에 있어서,상기 제1 공진 공동으로 유입된 유체에 의해 발생한 초음파와, 상기 제2 공진 공동으로 유입된 유체에 의해 발생한 초음파는 주파수가 동일한, 초음파 세정 장치.
- 제2 항에 있어서,상기 제1 공진 공동으로 유입된 유체에 의해 발생한 초음파와, 상기 제2 공진 공동으로 유입된 유체에 의해 발생한 초음파는 보강 간섭을 일으키고,상기 분사구는 상기 바디의 저면에 배치되어, 상기 보강 간섭된 초음파를 상기 피가공물에 분사하는, 초음파 세정 장치.
- 제2 항에 있어서,상기 제1 공진 공동으로 유입된 유체에 의해 발생한 초음파와, 상기 제2 공진 공동으로 유입된 유체에 의해 발생한 초음파는 주파수가 상이한, 초음파 세정 장치.
- 제2 항에 있어서,상기 분사구는 상기 바디의 저면에 2개 배치되어, 상기 제1 공진 공동으로 유입된 유체에 의해 발생한 초음파와, 상기 제2 공진 공동으로 유입된 유체에 의해 발생한 초음파를 각각 상기 피가공물에 분사하는, 초음파 세정 장치.
- 제1 항에 있어서,상기 초음파 발생기는상기 제1 챔버를 따라 유동하는 유체의 유동 단면적보다 작은 유동 단면적을 갖는 미세 슬릿을 포함하고,상기 공진 공동은상기 미세 슬릿과 연결되며, 상기 미세 슬릿을 통과한 유체가 정상 압력파를 생성하도록 하는, 초음파 세정 장치.
- 제7 항에 있어서,상기 초음파 발생기는제1 블록; 및상기 제1 블록에서 이격하여 배치되며, 상기 제1 블록과의 사이에 상기 미세 슬릿이 배치되는 제2 블록을 포함하고,상기 제1 블록 및 상기 제2 블록 중 적어도 어느 하나는 일 방향으로 이동하여, 상기 미세 슬릿의 간격을 조절 가능한, 초음파 세정 장치.
- 제8 항에 있어서,상기 초음파 발생기는상기 제2 블록과의 사이에 상기 공진 공동이 배치되고, 일 방향으로 이동하여 상기 공진 공동의 길이를 조절 가능한 제3 블록을 포함하는, 초음파 세정 장치.
- 제1 항에 있어서,상기 초음파 발생기는상기 공진 공동을 구획하며, 상기 분사구를 향해 테이퍼진 형상 또는 필름 형상의 제4 블록을 포함하는, 초음파 세정 장치.
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KR20040060735A (ko) * | 2002-12-30 | 2004-07-06 | 에이에스엠 어쌤블리 오토메이션 리미티드 | 전자 부품 세정 방법 및 장치 |
JP2008080293A (ja) * | 2006-09-28 | 2008-04-10 | Hitachi Plant Technologies Ltd | 洗浄装置 |
CN201195158Y (zh) * | 2008-05-16 | 2009-02-18 | 北京博惠通科技发展有限公司 | 一种高效节能声波清灰装置 |
KR20110128998A (ko) * | 2010-05-25 | 2011-12-01 | 윤근천 | 유기 전계 발광소자의 세정시스템 |
KR20190115665A (ko) * | 2018-04-03 | 2019-10-14 | (주)에이치케이티 | 건식세정장치 |
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KR100931856B1 (ko) | 2007-08-24 | 2009-12-15 | 세메스 주식회사 | 기판 세정 장치 및 기판 세정 방법 |
US20170271145A1 (en) | 2016-03-21 | 2017-09-21 | Suss Microtec Photomask Equipment Gmbh & Co. Kg | Method and an apparatus for cleaning substrates |
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Publication number | Priority date | Publication date | Assignee | Title |
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KR20040060735A (ko) * | 2002-12-30 | 2004-07-06 | 에이에스엠 어쌤블리 오토메이션 리미티드 | 전자 부품 세정 방법 및 장치 |
JP2008080293A (ja) * | 2006-09-28 | 2008-04-10 | Hitachi Plant Technologies Ltd | 洗浄装置 |
CN201195158Y (zh) * | 2008-05-16 | 2009-02-18 | 北京博惠通科技发展有限公司 | 一种高效节能声波清灰装置 |
KR20110128998A (ko) * | 2010-05-25 | 2011-12-01 | 윤근천 | 유기 전계 발광소자의 세정시스템 |
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