Bearing assembly for accommodating device for semiconductor apparatus

A bearing assembly includes a bearing cantilever, a supporting assembly connected to the bearing cantilever and a first driving device, where the bearing cantilever includes a bearing portion for bearing the semiconductor apparatus accommodating device, a connecting plate and a substrate, the bearing portion being composed of a bearing plate and a bearing support that are horizontally inserted, an opening for exposing a semiconductor apparatus is formed at a bottom of the semiconductor apparatus accommodating device, the bearing plate is provided with a rotatable rotating roller located below the opening, the rotating roller makes contact with an edge of the semiconductor apparatus, and the first driving device drives the rotating roller to rotate by means of a power transmission member, so as to apply a rotating force by means of the rotating roller, to an edge of the semiconductor apparatus inserted into the semiconductor apparatus accommodating device.

TECHNICAL FIELD

The present disclosure relates to the technical field of semiconductor apparatus manufacturing apparatuses, and in particular to a bearing assembly for a semiconductor apparatus accommodating device.

BACKGROUND ART

A semiconductor apparatus is finally formed on a substrate such as a semiconductor wafer (such as silicon, germanium, gallium nitride, gallium arsenide, silicon carbide and indium phosphide) or an organic light emitting diode (OLED) glass substrate by repeatedly executing semiconductor processes such as spin coating, exposure, development, etching, coating and ion implantation. In the semiconductor manufacturing process of the semiconductor apparatus, it is necessary to repeatedly execute cleaning treatment, so as to remove residual chemical glue (such as photoresist (PR)) and particles on the substrate. The cleaning process is usually completed by using a tank type cleaning apparatus, and the cleaning apparatus can also be used in a wet etching process for a wafer. Therefore, the cleaning apparatus is one of key apparatuses in the process of manufacturing the semiconductor apparatus.

The semiconductor cleaning apparatus for tank type cleaning or wet etching usually includes a wafer box or a wafer cassette for accommodating a wafer and a bearing device for bearing the wafer box. The wafer is accommodated in the wafer box and is integrally immersed in a cleaning solution (such as a buffered oxide etch (BOE) cleaning solution containing hydrofluoric acid, deionized water and a surfuric/peroxide mix (SPM) cleaning solution containing concentrated sulfuric acid and hydrogen peroxide), to execute cleaning operation, and after cleaning or wet etching is completed, the wafer box is transferred by means of a wafer box transferring mechanical arm. However, since a side edge of the wafer makes contact with a comb tooth wall of the wafer box, a wafer edge side surface and a wafer edge side wall surface which are inserted and clamped between comb tooth walls of the wafer box (which is a subordinate concept of a semiconductor apparatus accommodating device) have the defect of a poor cleaning effect. Moreover, a bonding force between the chemical glue (such as the photoresist) and the particles and silicon atoms forming a microstructure of the wafer and a surface of the wafer is strong, such that the effect of executing cleaning or wet etching by traditionally immersing the wafer box in a cleaning tank is poor. Finally, when an ultrasonic generator or a megasonic generator is used to generate ultrasonic or megasonic cleaning for the wafer immersed in the cleaning solution, although the chemical glue and the particles on the surface of the wafer can be emulsified and vibrated, it is necessary to heat the cleaning solution and match a special cleaning solution in the prior art, such that the cleaning cost of the wafer is increased, and since ultrasonic waves or megasonic waves can damage a metal film and a substrate which are bonded on the basis of a Van der Waals' force and strip the metal film and the substrate, potential damage can further be caused to a microscopic device on the surface of the wafer.

In view of this, it is necessary to improve a bearing assembly for a semiconductor apparatus accommodating device in the prior art, so as to solve the above problem.

SUMMARY

The objective of the present disclosure is to disclose a bearing assembly for a semiconductor apparatus accommodating device, which solves the technical problem that in a process of executing cleaning treatment or wet etching treatment on a semiconductor apparatus vertically inserted into a plurality of clamping grooves oppositely provided in an accommodating device in cleaning tanks, chemical glue and particles may not effectively removed from an edge in which the semiconductor apparatus makes contact with inner wall surfaces of the clamping grooves, improves cleaning and wet etching effects of the semiconductor apparatus, and moreover, avoids the situation that damage is caused to a microscopic device formed in the semiconductor apparatus by using ultrasonic waves or megasonic waves in a cleaning or wet etching process, and avoids the undesirable phenomenon that a metal film is stripped from a substrate.

In order to achieve the above objective, the present disclosure provides a bearing assembly for a semiconductor apparatus accommodating device. The bearing assembly is used for bearing the semiconductor apparatus accommodating device, andincludes: a bearing cantilever, a supporting assembly connected to the bearing cantilever and a first driving device, wherethe bearing cantilever includes: a bearing portion for bearing the semiconductor apparatus accommodating device, a connecting plate and a substrate, the bearing portion being composed of a bearing plate and a bearing support that are horizontally inserted, an opening for exposing a semiconductor apparatus being formed at a bottom of the semiconductor apparatus accommodating device, the bearing plate being provided with a rotatable rotating roller located below the opening, the rotating roller making contact with an edge of the semiconductor apparatus, and the first driving device driving the rotating roller to rotate by means of a power transmission member, so as to apply a rotating force by means of the rotating roller, to an edge of the semiconductor apparatus inserted into the semiconductor apparatus accommodating device.

As a further improvement of the present disclosure, a cambered surface is formed by the rotating roller in a lengthwise extension direction of the rotating roller, so as to apply a rotating force by means of the cambered surface, to the edge of the semiconductor apparatus inserted into the semiconductor apparatus accommodating device.

As a further improvement of the present disclosure, at least one plane is formed by the cambered surface formed by the rotating roller in the lengthwise extension direction of the rotating roller, so as to apply a rotating force by means of the cambered surface and the plane, to the edge of the semiconductor apparatus inserted into the semiconductor apparatus accommodating device, and the cambered surface and the plane make alternate contact with the edge of the semiconductor apparatus in a rotating process of the rotating roller, so as to drive the semiconductor apparatus to vertically move periodically.

As a further improvement of the present disclosure, a plurality of planes are formed by the rotating roller in a lengthwise extension direction of the rotating roller, and make alternate contact with the edge of the semiconductor apparatus in a rotating process of the rotating roller, so as to drive the semiconductor apparatus to vertically move periodically.

As a further improvement of the present disclosure, a bottom of the connecting plate is provided with several positioning stepped holes continuously provided, a positioning seat for limiting longitudinal displacement of the rotating roller is arranged at a tail end of the bearing plate away from the connecting plate, a first rolling member embedded into the positioning stepped holes is arranged at an end of the rotating roller close to the connecting plate, the rotating roller is longitudinally clamped by the positioning seat and the connecting plate, and the positioning stepped holes are distributed in an arc shape.

As a further improvement of the present disclosure, the bearing assembly further includes a cambered fixing plate that the rotating roller vertically penetrates, where the cambered fixing plate is connected to the connecting plate.

As a further improvement of the present disclosure, the rotating roller includes an inner roller body, an elastic outer roller body annularly arranged on an outer side of the inner roller body, a roller shaft base annularly arranged in a protruding manner, and a core shaft longitudinally penetrating the inner roller body and the roller shaft base, where a positioning end inserted into the driven gear is formed by a tail end of the roller shaft base, the driven gear is inserted into a positioning shaft arranged coaxial with the core shaft, and the positioning shaft vertically penetrates the cambered fixing plate and is inserted into the first rolling member.

As a further improvement of the present disclosure, the power transmission member includes a driving gear driven by the first driving device, a driven gear arranged on an outer side of the roller shaft base in a sleeving manner and at least one carrier gear meshing with the driving gear and the driven gear, the carrier gear being fixed to the connecting plate.

As a further improvement of the present disclosure, the power transmission member includes a driving gear driven by the first driving device, a driven gear arranged on the outer side of the roller shaft base in a sleeving manner, and a synchronous belt meshing with the driving gear and the driven gear.

As a further improvement of the present disclosure, the connecting plate and the supporting assembly are vertically arranged and separated in parallel.

As a further improvement of the present disclosure, the first driving device is fixed to a top of the supporting assembly, and a driving shaft arranged horizontally, extending through the connecting plate and driving the driving gear is formed by the first driving device.

As a further improvement of the present disclosure, the bearing assembly further includes: a cover plate and a back plate that are separated in parallel and are slidably connected to each other, a vertical abutting plate vertically inserted between the cover plate and the back plate and fixedly connected to the back plate, and a vibration mechanism, wherethe vibration mechanism integrally drives the back plate and the vertical abutting plate to vertically reciprocate relative to the cover plate, so as to integrally drive the bearing cantilever to vertically reciprocate.

As a further improvement of the present disclosure, a first cambered notch is formed by the substrate, an abutting plate is arranged at a top of the vertical abutting plate, a second cambered notch is formed by the abutting plate, an opening portion is delimited by the first cambered notch and the second cambered notch, and a waist-shaped plate is arranged at the opening portion, so as to connect the substrate and the abutting plate by means of the waist-shaped plate.

As a further improvement of the present disclosure, the vibration mechanism includes: a second driving device, a driving rotary disc, a driving shaft eccentrically penetrating the driving rotary disc, a second rolling member making rolling contact along an annular surface of the driving rotary disc, and a driving plate fixedly connected to the back plate, wherethe second rolling member is provided with a driven shaft inserted into a pin hole formed at a bottom of a driving plate; and one end of the driving shaft vertically penetrates a middle plate, and the other end of the driving shaft is driven by the second driving device.

As a further improvement of the present disclosure, several sliders are symmetrically arranged on one side of the back plate facing the cover plate, the middle plate fixedly connected to the cover plate is clamped between the cover plate and the back plate, and a guide rail slidably connected to the sliders is arranged on the middle plate in a vertical direction; anda first-stage step and a second-stage step that are gradually shrunk are formed by one end of the driving shaft, the second-stage step is embedded into a limiting hole formed by the middle plate, a cylinder is formed by the other end of the driving shaft, and a pin hole for insertion of a power output shaft formed by the second driving device is formed by a circle center of the cylinder.

As a further improvement of the present disclosure, the driven shaft includes: a base, the base sleeving the second rolling member in an embedded manner; a retainer ring arranged on the base in a sleeving manner and stopping the second rolling member from stripping; a rotating shaft extending from the base, gradually shrunk and inserted into the pin hole; a limiting ring embedded into the pin hole and having a through hole; and a fastener,the fastener transversely and continuously penetrating the limiting ring and the pin hole and being screwed into a blind hole provided at an end surface of the rotating shaft and having an internal thread, so as to rotatably connect the driven shaft and the driving plate.

As a further improvement of the present disclosure, one side of the middle plate facing the vibration mechanism is provided with four stand columns arranged around the driving rotary disc; and the second driving device includes a second electric motor, a reversing device and an electric motor mounting plate, a core shaft perpendicular to the electric motor mounting plate being arranged in the reversing device, the core shaft being inserted into the pin hole, and the driving shaft being clamped by the second driving device and the middle plate.

As a further improvement of the present disclosure, a lower limit position sensor and an upper limit position sensor are arranged on a side portion of a bottom of the middle plate, and a blocking piece is arranged at a bottom of the back plate; andthe second driving device drives the driving rotary disc to periodically rotate around the driving shaft, so as to drive the second rolling member to roll along the annular surface of the driving rotary disc by means of the driving rotary disc, so as to drive the back plate to vertically reciprocate by means of the driven shaft and the driving plate, so as to integrally drive the bearing cantilever to vertically reciprocate.

As a further improvement of the present disclosure, the lower limit position sensor and the upper limit position sensor are movably embedded into an adjusting support arranged at a side portion of a bottom of the middle plate, the adjusting support is provided with a strip-shaped opening allowing the lower limit position sensor and the upper limit position sensor to vertically slide in a vertical direction, and an amplitude of vertical reciprocating motion of the bearing cantilever is determined by adjusting a distance between the lower limit position sensor and the upper limit position sensor.

As a further improvement of the present disclosure, an upper surface of the bearing plate is provided with four first positioning members and four second positioning members arranged on outer sides of the first positioning members, and a positioning groove is provided on each of outer sides of the second positioning members on the bearing plate in a recessed manner.

As a further improvement of the present disclosure, the semiconductor apparatus accommodating device born by the bearing assembly includes a wafer cassette clamping a four-inch wafer, a six-inch wafer, or an eight-inch wafer, an opening for exposing the four-inch wafer, the six-inch wafer, or the eight-inch wafer being formed at a bottom of the wafer cassette.

On the basis of the same inventive concept, the present disclosure further discloses a semiconductor apparatus cleaning device. The semiconductor apparatus cleaning device includes:several cleaning tanks forming accommodating cavities, housings delimiting the cleaning tanks, and several bearing assemblies for semiconductor apparatus accommodating devices of any one of the above inventive creations fixedly connected to the housings, wherebearing cantilevers in the bearing assemblies for semiconductor apparatus accommodating devices extend into the accommodating cavities of the cleaning tanks.

Compared with the prior art, the present disclosure has the beneficial effects:firstly, the opening for exposing the semiconductor apparatus is formed at the bottom of the semiconductor apparatus accommodating device on the bearing plate for bearing the semiconductor apparatus accommodating device, and the rotatable rotating roller is arranged below the opening on the bearing plate, such that the objective that in a process of executing cleaning treatment or wet etching treatment, the rotating force is applied by means of the rotating roller, to the edge of the semiconductor apparatus inserted into the semiconductor apparatus accommodating device, so as to make the semiconductor apparatus rotate in the clamping groove of the semiconductor apparatus accommodating device, it is ensured that in a semiconductor manufacturing process of executing wet etching or cleaning on the semiconductor apparatus, part of an area in which the semiconductor apparatus makes contact with the clamping groove of the semiconductor apparatus accommodating device may be completely exposed, such that the technical problem that chemical glue and particles may not be effectively removed from the edge in which the semiconductor apparatus makes contact with the inner wall surface of the clamping groove is effectively solved, and a cleaning treatment effect of the semiconductor apparatus and uniformity of wet etching are improved;secondly, in the present disclosure, the vibration mechanism integrally drives the back plate and the vertical abutting plate to vertically reciprocate relative to the cover plate, so as to integrally drive the bearing cantilever, to vertically reciprocate, such that the semiconductor apparatus does vertical reciprocating motion on the basis of the bearing cantilever in the process of executing wet etching or cleaning, so as to drive the semiconductor apparatus accommodating device born by the bearing plate to vertically reciprocate, and the semiconductor apparatus clamped in the semiconductor apparatus accommodating device vertically vibrates, such that chemical glue and particles attached to a surface of the semiconductor apparatus are vibrated off favorably, and the effects of semiconductor manufacturing processes such as wet etching and cleaning of the semiconductor apparatus are improved; andfinally, the bearing assembly for a semiconductor apparatus accommodating device disclosed in the present disclosure does not need to depend on a cleaning tank for mounting an ultrasonic or megasonic generator, such that the situation that damage is caused to a microscopic device formed in the semiconductor apparatus by using ultrasonic waves or megasonic waves in the cleaning or wet etching process is effectively avoided, and the undesirable phenomenon that a metal film is stripped from a substrate is avoided.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The present disclosure will be described in detail below in combination with the implementations shown in the accompanying drawings. However, it should be noted that these implementations are not a limitation of the present disclosure, and equivalent transformation or substitution of functions, methods, or structures made by those of ordinary skill in the art according to these implementations all fall within the scope of protection of the present disclosure.

It should be noted that when an element is considered to be “connected” to another element, the element may be directly connected to another element or there may be an intermediate element simultaneously. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present disclosure. The terms used in the description of the present disclosure herein are just for the purpose of describing particular embodiments, and are not intended to limit the present disclosure. As used herein, the term “and/or” includes any and all combinations of one or more relevant listed items.

It needs to be understood that the terms “central”, “longitudinal”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “clockwise”, “anticlockwise”, “axial”, “radial”, “circumferential”, “forward”, “negative”, etc. indicate azimuthal or positional relations on the basis of those shown in the drawings only for ease of description of the present technical solution and for simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation and be constructed and operative in a particular orientation, and thus may not be construed as a limitation on the present technical solution.

With reference to a specific implementation of a bearing assembly (hereinafter or referred to as “bearing assembly”) for a semiconductor apparatus accommodating device of the present disclosure shown inFIGS.1-18,the bearing assembly is used for bearing the semiconductor apparatus accommodating device of an opening for exposing a semiconductor apparatus formed at a bottom of a wafer cassette, etc., such as a wafer cassette83(which is a subordinate concept of the semiconductor apparatus accommodating device) shown inFIG.15and used for clamping a four-inch wafer, a wafer cassette82(which is a subordinate concept of the semiconductor apparatus accommodating device) shown inFIG.16and used for clamping a six-inch wafer, or a wafer cassette81(which is a subordinate concept the semiconductor apparatus accommodating device) shown inFIG.17and used for clamping an eight-inch wafer. The semiconductor apparatus involved in this embodiment includes, but not limited to, a semiconductor apparatus (such as a wafer) made of a silicon-based semiconductor material, a semiconductor apparatus made of emerging semiconductor materials having the characteristic of a wide bandgap (Eg >2.3 eV), such as silicon carbide (SiC), gallium nitride (GaN), zinc oxide (ZnO), diamond (C) and aluminum nitride (AlN), a glass-based semiconductor apparatus, etc., and has the appearance generally in the shape of a flake-like circle or a similar circle. The wafer cassette83may be integrally clamped into the wafer cassette82, and the wafer cassette82may be integrally clamped into the wafer cassette81, as shown inFIG.6for details.

With reference toFIGS.15-17, the semiconductor apparatus accommodating device80born by the bearing assembly includes wafer cassettes83-81that clamp a four-inch wafer, a six-inch wafer, or an eight-inch wafer, openings for exposing the four-inch wafer, the six-inch wafer, or the eight-inch wafer being formed at bottoms of the wafer cassettes. An opening833for exposing a semiconductor apparatus (such as wafer1) is formed by a bottom of the wafer cassette83, an opening823for exposing the semiconductor apparatus (such as wafer1) is formed by a bottom of the wafer cassette82, and an opening813for exposing the semiconductor apparatus (such as wafer1) is formed by a bottom of the wafer cassette81. The bearing assembly bears the wafer cassettes83-81, the wafer cassettes83-81accommodate cambered side edges of wafers (which is a subordinate concept of the semiconductor apparatus) by means of a plurality of regularly-provided clamping grooves831,821or811on side walls of the wafer cassettes, and the wafer cassettes83-81are integrally immersed in an accommodating cavity of a cleaning tank90. The cleaning tank90may be connected to a supply pipe, a discharge pipe, and an overflow pipe of a cleaning solution, which is not specifically shown and described in this embodiment in view of the prior art in which the cleaning tank90is connected to the supply pipe, the discharge pipe, and the overflow pipe.

The cleaning solution is contained in the cleaning tank90, so as to execute wet etching or cleaning treatment. Specifically, the cleaning solution includes, but not limited to, a buffered oxide etch (BOE) solution formed by mixing HF and NH4F in different proportions, a surfuric/peroxide mix (SPM) solution (a mixed solution of concentrated sulfuric acid and water), an SC-1 solution (a mixed solution of NH4OH and H2O2), an SC-2 solution (a mixed solution of HCl, H2O2 and H2O), an aluminum etching agent (a mixed solution of phosphoric acid, nitric acid and acetic acid), a phosphoric acid etching solution (a mixed solution of pure phosphoric acid and deionized water) or deionized water.

In this embodiment, the bearing assembly for a semiconductor apparatus accommodating device is used for accommodating the semiconductor apparatus accommodating device80, and includes: a bearing cantilever, a supporting assembly connected to the bearing cantilever and a first driving device30.

The bearing cantilever includes: a bearing portion for bearing the semiconductor apparatus accommodating device, a connecting plate22and a substrate21, where the bearing portion is composed of a bearing plate24and a bearing support23that are horizontally inserted, an opening for exposing a semiconductor apparatus is formed at a bottom of the semiconductor apparatus accommodating device, the bearing plate24is provided with a rotatable rotating roller16located below the opening, the rotating roller16making contact with an edge of the semiconductor apparatus, and the first driving device30drives the rotating roller16to rotate by means of a power transmission member, so as to apply a rotating force by means of the rotating roller, to an edge of the semiconductor apparatus inserted into the semiconductor apparatus accommodating device16. The bearing portion, the connecting plate22, the substrate21, a driving gear11, a carrier gear or a driven gear14, etc. disclosed in this embodiment are all made of weather-resistant materials (such as polytetrafluoroethylene and polypropylene) having acid and alkali corrosion resistance.

In brief, with reference toFIGS.2and10, a cambered surface is formed by the rotating roller16in a lengthwise extension direction (i.e., a direction shown by an axis A inFIG.2) of the rotating roller, so as to apply a rotating force by means of the cambered surface, to the edge of the semiconductor apparatus111inserted into the semiconductor apparatus accommodating device80, and the rotating force is applied to the edge111of the wafer1in a tangent direction of the edge111of the wafer1inFIG.10, to drive the wafer1to rotate in the semiconductor apparatus accommodating device80(such as the wafer cassettes83-81) in a posture perpendicular to the rotating roller16. A cross-sectional (i.e., a plane perpendicular to an axis A) shape of the rotating roller16includes, but not limited to, a circle, oval, drop shape, etc.

Further, at least one plane161is formed by a cambered surface160formed by the rotating roller16in a lengthwise extension direction (in a direction shown by an axis A inFIG.2) of the rotating roller. Preferably, four planes161are formed by the cambered surface160formed by the rotating roller16in the lengthwise extension direction of the rotating roller, so as to apply a rotating force to an edge111of the semiconductor apparatus (such as the wafer1shown inFIG.10, the wafer1being a subordinate concept of the semiconductor apparatus) inserted into the wafer cassettes83-81by means of the cambered surface160and the four alternately-arranged planes161, and in a horizontal rotation process of the rotating roller16, and the cambered surface160and the four alternately-arranged planes161make alternate contact with the edge111of the wafer1, such that an acting force in a vertical direction is applied to the wafer1in the vertical direction of the wafer1while a rotation process of the wafer1is achieved, and the wafer1is driven to vertically move periodically in the vertical direction (with reference to a direction shown by a double-sided arrow K inFIG.5), such that a vibration effect on the wafer1is achieved. The rotating roller16may rotate in a direction of an arrow B inFIG.2, and certainly, may also rotate in a direction opposite the arrow B, so as to apply a rotating force to the edge111formed in a thickness direction of the wafer1by means of a cambered surface160and/or a plane161having a circular cross section of the rotating roller16, so as to execute synchronous rotation on a plurality of wafers1inserted and accommodated in the wafer cassettes83(or the wafer cassette82or the wafer cassette81).

Specifically, when the rotating roller16rotates in a direction of an arrow E inFIG.10, the wafer1rotates in a direction shown by an arrow D inFIG.10, and the edge111of the wafer1always makes contact with the cambered surface160and/or the plane161having a circular cross section of the rotating roller16in a rotation process of the wafer1. As another reasonable variation of the rotating roller16in this embodiment, several ribs (not shown) distributed in parallel in the direction of the axis A and annularly arranged around the cambered surface160may further be arranged on the cambered surface160in the longitudinal extension direction of the rotating roller (i.e. the direction of the axis A). Alternatively, several ribs spirally distributed around the direction of the axis A may further be arranged on the cambered surface160of the rotating roller16in the lengthwise extension direction (i.e., the direction of the axis A) of the rotating roller, the ribs protrude out of the cambered surface160in a radial direction, and a cross-sectional shape of the ribs includes a semi-circular shape or a triangular shape.

As shown inFIG.18, as a reasonable variation of the above rotating roller16, this embodiment further discloses a rotating roller16a. A plurality of planes are formed by the rotating roller16ain the lengthwise extension direction of the rotating roller, such as four planes161ainFIG.18, and the four planes161aall intersect in the lengthwise extension direction of the rotating roller16a. In a rotating process of the rotating roller16a, four edges1600formed by longitudinal intersection of four planes161aand two adjacent planes161amake alternate contact with the edge111of the wafer1, so as to apply the rotating force to the edge111of the semiconductor apparatus (such as the wafer1shown inFIG.10, the wafer1being a subordinate concept of the semiconductor apparatus) inserted into the wafer cassettes83-81by means of the rotating roller16a, such that the rotating roller16adrives the plurality of wafers1inserted and accommodated in the wafer cassette83(or the wafer cassette82or the wafer cassette81) and arranged in parallel to execute synchronous rotation in a horizontal rotation process. Moreover, a radial distance formed between the edge1600and the core shaft164is greater than that formed between the plane161aand the core shaft164, such that when the rotating roller16arotates in the lengthwise extension direction of the axis A and in the arrow B (or rotates in the direction opposite the arrow B), and the acting force in the vertical direction is applied to the wafer1in the vertical direction of the wafer1, such that the wafer1is driven to vertically move periodically in the vertical direction (with reference to the direction shown by the double sided arrow K inFIG.5), and a vibration effect of the rotating roller16aon the wafer1is further improved. A contour shape of a cross section (i.e., perpendicular to a plane in which the axis A is located) of the rotating roller16aincludes a regular triangle, a square, a regular pentagon, a regular hexagon, etc.

With reference toFIGS.2and3, a bottom of the connecting plate22is provided with a plurality of positioning stepped holes221, positioning stepped holes222and positioning stepped holes223that are continuously provided, a tail end of the bearing plate24away from the connecting plate22is provided with a positioning seat for limiting longitudinal displacement of the rotating roller16, an end of the rotating roller16close to the connecting plate22is provided with a first rolling member166embedded into the positioning stepped holes222, the rotating roller16is longitudinally clamped by the positioning seat and the connecting plate22, the positioning stepped holes221-223are provided in a cambered shape and are specifically provided in a direction shown by a dotted line T inFIG.3in a cambered shape, and two ends of the positioning stepped holes are upwarped. The positioning seat includes a positioning base25fixedly connected to the bearing plate24and a positioning cover plate26arranged above the positioning base25and used for clamping one end portion of the core shaft164of the rotating roller16. As an optional implementation, the positioning base25and the positioning cover plate26may be transversely adjusted in a direction Q inFIG.1and fixedly connected to the bearing plate24by means of the positioning base25. After the positioning base25and the positioning cover plate26are closed vertically, a through hole for accommodating the core shaft164is formed, and a bearing (not shown) for the core shaft164to penetrate in the direction of the axis A is arranged in the through hole, so as to ensure rotation smoothness of the core shaft164.

Preferably, in combination withFIGS.1,3and14, in this embodiment, the bearing assembly further includes a cambered fixing plate15that the rotating roller16vertically penetrates, where the cambered fixing plate15is connected to the connecting plate22. Through holes151are provided at two ends of the cambered fixing plate15, inner screw holes (not shown) matching the through holes151are provided on one surface of the connecting plate22making contact with the cambered fixing plate15, and bolts penetrate the through holes151and are fixed to the inner screw holes, so as to reliably fix the rotating roller16and the coaxially-arranged driven gear14in the direction of the axis A. As shown inFIG.14, rectangular and recessed abutting grooves225and226are further formed by two ends of a bottom of the connecting plate22. In combination withFIG.15, one side of the bearing plate24close to the connecting plate22protrudes to form abutting columns244which are inserted into and abut against the abutting grooves225and226, such that after the bearing plate24and the connecting plate22are vertically assembled, and the bearing plate24and the connecting plate22are further clamped by means of bearing supports23on two sides, such that the bearing cantilever is more convenient to assemble, and the structure is firm and reliable.

In this embodiment, the rotating roller16may be adjusted in a cambered arrangement direction shown by a dotted line T, such that an end portion of the other end of the rotating roller16away from the positioning seat is embedded into the positioning stepped hole221or the positioning stepped hole223. Even, the bearing assembly may be provided with three rotating rollers16or two rotating rollers16in a direction shown by the axis A. An end portion of the other end of the rotating roller16away from the positioning seat is embedded into the positioning stepped holes221-223, so as to adjust the height of the rotating roller16in the vertical direction, such that it is ensured that the cambered surface160and/or the plane161(or ribs arranged annularly or spirally) having the circular cross section of the rotating roller16makes contact with the edge111of the wafer1all the time, so as to ensure that the wafer1may be reliably rotated in the process that the wafer cassette is integrally immersed into the cleaning tank90to execute cleaning or wet etching, and part of a side area112in which the wafer1makes contact with clamping grooves (i.e., clamping grooves831-811respectively shown inFIGS.15-17) of the semiconductor apparatus accommodating device80is completely exposed, such that some of a side surface area112originally making contact with the clamping groove is throughly exposed conveniently, treatment effects of cleaning and wet etching of the semiconductor apparatus are improved, and the technical effect of better wet etching uniformity is indirectly obtained, so as to make the semiconductor apparatus have the technical advantage of better integral thinning uniformity when the semiconductor apparatus executes a thinning process on the basis of wet etching. Some of the above side area112may occur in some of an area within one or both side edges111of the wafer1.

In combination withFIGS.1,2,3and10, the rotating roller16includes an inner roller body162, an elastic outer roller body165annularly arranged on an outer side of the inner roller body162, a roller shaft base163annularly arranged in a protruding manner, and a core shaft164longitudinally penetrating the inner roller body162and the roller shaft base163, where a positioning end167inserted into a driven gear14is formed by a tail end of the roller shaft base163, the driven gear14is inserted into a positioning shaft168arranged coaxial with the core shaft164, and the positioning shaft168vertically penetrates a cambered fixing plate15and is inserted into a first rolling member166. After the positioning end167is inserted into a gear hole (not shown) provided on an end surface of the driven gear14in the direction of the axis A, the positioning shaft168is also inserted into the gear hole (not shown) of the driven gear14in the direction of the axis A. The positioning shaft168and the positioning end167are inserted into the gear hole of the driven gear14in the direction of the axis A and are assembled to an inner wall surface of the gear hole in an interference fit manner. The positioning shaft168vertically penetrates the cambered fixing plate15and is inserted into the first rolling member166, and extends through a tail end of the first rolling member166in the direction of the axis A, to be in threaded connection with the bolt169. A retainer ring1662and a retainer ring1661are arranged at two ends of the first rolling member166respectively, so as to prevent the first rolling member166from shifting in the direction of the axis A.

In combination withFIGS.1,2,4and14, in this embodiment, the power transmission member includes a driving gear11driven by a first driving device30, a driven gear14arranged an outer side of a roller shaft base163in a sleeving manner, and two carrier gears meshing with the driving gear11and the driven gear14, i.e., a carrier gear12and a carrier gear13which mesh with each other and transmit power, where the carrier gear12and the carrier gear13are fixed on the connecting plate22. The carrier gear12is provided with a rotating shaft120in a direction perpendicular to the connecting plate22, and the carrier gear13is provided with a rotating shaft130in a direction perpendicular to the connecting plate22. The rotating shaft120horizontally extends through the through hole121provided on the connecting plate22, and the rotating shaft130horizontally extends through the through hole131provided on the connecting plate22. A through hole110for allowing the rotating shaft of the driving gear11to penetrate is provided at a top of the connecting plate22. The rotating shaft120is located on a back surface of the connecting plate22to be in threaded connection with the bolt227, and the rotating shaft130is located on the back surface of the connecting plate22to be in threaded connection with the bolt228. A bearing (not shown) is arranged in each of the through hole110, the through hole121, and the through hole131. The rotating shaft120penetrates the bearing arranged in the through hole121, and the rotating shaft130penetrates the bearing arranged in the through hole131, such that the rotating shafts, such as the rotating shaft120and the rotating shaft130, connected to the carrier gear may flexibly and horizontally rotate in a posture perpendicular to the connecting plate22.

As a reasonable variation of the above power transmission member, the power transmission member includes a driving gear11driven by a first driving device30, a driven gear14arranged an outer side of a roller shaft base163in a sleeving manner, and a synchronous belt meshing with the driving gear11and the driven gear14. In this case, the two carrier gears inFIG.1may be replaced with one synchronous belt (not shown), so as to transmit a driving force to drive the rotating roller16to the driven gear14by means of the synchronous belt, so as to finally drive the rotating roller16(or the rotating roller16a) to apply a rotating force to the edge111of the wafer1in a state of always attaching to the edge111of the wafer1, so as to drive the wafer1to rotate in the semiconductor apparatus accommodating device80or rotate and vibrate at the same time.

In combination withFIGS.1,2,5and7, the connecting plate22and the supporting assembly are vertically arranged and separated in parallel. The first driving device30is fixed to the top of the supporting assembly, and a driving shaft33arranged horizontally, extending through the connecting plate22and driving the driving gear11is formed by the first driving device30. The supporting assembly in this embodiment includes a device for connecting and integrally supporting the bearing cantilever. The supporting assembly includes a vertical abutting plate60and a back plate41. Of course, from another aspect, the middle plate52and the cover plate51may also be regarded as part of the supporting assembly. The function of the bearing assembly in the embodiment may be generalized as fixing the first driving device30and connecting the bearing assembly. The connecting plate22and the supporting assembly are vertically arranged and separated in parallel, such that the bearing assembly, particularly the whole and most of the connecting plate22of the bearing portion, may be submerged in the cleaning solution contained in the cleaning tank90, and it is ensured that the wafer cassette clamped on the bearing portion may be integrally submerged in the cleaning solution contained in the cleaning tank90. The specific type of the cleaning solution may be adaptively selected according to specific requirements of the wet etching or cleaning process.

Specifically, the bearing assembly further includes: a cover plate51and a back plate41that are separated in parallel and are slidably connected, a vertical abutting plate60vertically inserted between the cover plate51and the back plate41and fixedly connected with the back plate41, and a vibration mechanism4. The vibration mechanism4integrally drives the back plate41and the vertical abutting plate60to vertically reciprocate relative to the cover plate51, so as to integrally drive the bearing cantilever to vertically reciprocate. On the basis of the vertical reciprocating motion, the bearing cantilever does periodic vertical reciprocating motion on the wafer1inserted into the wafer cassette born by the bearing cantilever in the cleaning solution, so as to achieve a vibration effect of the wafer1in the cleaning or wet etching process, so as to separate chemical glue or particles bonded to circular surfaces of two sides of the wafer1and the edge111formed in a thickness direction of the wafer1from the wafer1by means of vibration under the joint cooperation of the cleaning solution. The cleaning solution may be a buffered oxide etching solution, an SPM solution, an SC-1 solution, an SC-2 solution, an aluminum etching agent, a phosphoric acid etching solution or deionized water.

With reference toFIGS.8-9and11-13, in this embodiment, the vibration mechanism4includes: a second driving device40, a driving rotary disc44, a driving shaft49eccentrically penetrating the driving rotary disc44, a second rolling member471making rolling contact along an annular surface440of the driving rotary disc44, and a driving plate46fixedly connected to the back plate41. The driving rotary disc44is in a shape of circular disc, and the driving shaft49deviates from a circle center of the driving rotary disc44and vertically penetrates the driving rotary disc44. A central axis F of the driven shaft45is always located above a central axis G of the driving shaft49, and the central axis G does not coincide with a central axis H formed by the driving rotary disc44. The central axis F, the central axis G and the central axis H are always kept parallel.

The second rolling member471is provided with the driven shaft45inserted into a pin hole462formed at a bottom of a driving plate46. One end of the driving shaft49vertically penetrates the middle plate52, the other end of the driving shaft49is driven by the second driving device40, and the driven shaft45is separated from the middle plate52. With reference toFIGS.2and8, one side of the middle plate52facing the vibration mechanism4is provided with four stand columns521arranged around the driving rotary disc44. The second driving device40includes a second electric motor400, a reversing device401and an electric motor mounting plate402, where a core shaft403perpendicular to the electric motor mounting plate402is arranged in the reversing device401, and the core shaft403is inserted into a pin hole442and clamps the driving shaft49by means of the second driving device40and the middle plate52. The electric motor mounting plate402may be square and is fixedly connected to the middle plate52by means of four stand columns521. The second electric motor400(as well as the first driving device30) may be a servo motor or a stepping motor and is connected to a control system by means of a wire. Two bevel gears (not shown) meshing with each other are arranged in the reversing device401, to convert a power output direction and finally transmit power to the core shaft403, so as to drive the driving rotary disc44to rotate around the central axis G of the driving shaft49shown inFIG.11by means of the core shaft403.

In combination withFIGS.11-13, in this embodiment, the driven shaft45includes: a base451. The second rolling member471being embedded into a shaft portion of the base451extending from the middle plate52to the back plate41; a retainer ring472arranged on the base in a sleeving manner451and stopping the second rolling member471from stripping; a rotating shaft453extending from the base451, gradually shrunk and arranged in the pin hole462; a limiting ring452embedded into the pin hole462and having a through hole4521; and a fastener (such as a bolt). The fastener continuously penetrates the limiting ring452and the pin hole462along the central axis F and is screwed into a blind hole4531that is provided at an end surface of the rotating shaft453and is provided with an internal thread, so as to rotatably connect the driven shaft45to the driving plate46. An annular surface4710of the second rolling member471makes contact with the annular surface440of the driving rotary disc44all the time, and the second rolling member471and the driving rotary disc44coincide with each other in the vertical direction. When the driving rotary disc44is driven anticlockwise inFIG.12, the second electric motor400drives the driving rotary disc44to rotate in a direction perpendicular to a paper surface, thereby driving the driving plate46and the back plate41to move downwards in the vertical direction; and when the driving rotary disc44is driven clockwise inFIG.12, the second electric motor400drives the driving rotary disc44to rotate in a direction perpendicular to the paper surface, thereby driving the driving plate46and the back plate41to move upwards in the vertical direction. Finally, the driving plate46drives the back plate41, the back plate41drives the vertical abutting plate60, to vertically reciprocate in a direction V inFIG.1, and the vertical abutting plate60drives the bearing cantilever, to vertically reciprocate in the direction V inFIG.1, such that a vibration effect on the wafer1accommodated in the semiconductor apparatus accommodating device80is achieved.

In combination withFIGS.1,2and6, a first cambered notch211is formed by the substrate21, the top of the vertical abutting plate60is provided with an abutting plate62, a second cambered notch621is formed by the abutting plate62, an opening portion is delimited by the first arc-shaped notch211and the second arc-shaped notch621, and a waist-shaped plate63is arranged at the opening portion, to connect the substrate21and the abutting plate62by means of the waist-shaped plate63. The waist-shaped plate63may not only connect the substrate21and the abutting plate62, but also serves as a manhole for mounting and servicing a coupling32, so as to facilitate later maintenance. The abutting plate62is provided with a through hole622and a bolt is used to vertically penetrate the through hole622and is in threaded connection with a transverse expansion portion61formed at the top of the vertical abutting plate60. The top of the vertical abutting plate60is provided with a rectangular through hole601for the first driving device30to horizontally penetrate same and provide a fixing function.

In combination withFIG.7, the first driving device30is connected to the driving shaft33by means of a coupling32, and the driving shaft33is arranged coaxial with the driving gear11, so as to drive the driving gear11to rotate by means of the first driving device30. It should be noted that as a reasonable variation in this embodiment, the driving device30, the coupling32, and the driving shaft33may further be arranged above the horizontally-arranged substrate21. Triangular reinforcing plates213are arranged on two sides of a lower portion of the substrate21, a through hole611is provided on the transverse expansion portion61, and then a bolt is used to horizontally penetrate the through hole611and is in threaded connection with and fixed to the blind hole (not shown) provided on a joint surface of the reinforcing plates213and the transverse expansion portion61and having an internal thread, such that reliability of vertical assembly of the substrate21and the vertical abutting plate60is further improved.

In combination withFIG.5, as a preferred solution, the bearing assembly further includes a protective plate31arranged vertically and used for blocking a cleaning solution from eroding the first driving device30. Generally, the cleaning solution used in a wet etching process has high corrosivity. Therefore, the protective plate31is arranged, such that corrosion of the first driving device30caused by the cleaning solution which may be splashed at a position close to the opening at the top of the cleaning tank90is avoided, and service life of the bearing assembly is prolonged.

With reference toFIGS.2,5, and11-13, in this embodiment, several sliders42are symmetrically arranged on one side of the back plate41facing the cover plate51, a middle plate52fixedly connected to the cover plate51is clamped between the cover plate51and the back plate41, and a guide rail53slidably connected to the sliders42is arranged on the middle plate52in a vertical direction. A first-stage step443and a second-stage step444that are gradually shrunk are formed at one end of the driving shaft49, the second-stage step444is embedded into a limiting hole520formed in the middle plate52, a cylinder441is formed at the other end of the driving shaft49, and a pin hole442for insertion of a power output shaft formed by the second driving device40is formed in a circle center of the cylinder441.

With reference toFIGS.2,8and9, in this embodiment, a lower limit position sensor55and an upper limit position sensor56are arranged at a side portion of a bottom of the middle plate52, and a blocking piece431is arranged at the bottom of the back plate41. The blocking piece431is fixedly connected to the back plate41by means of a blocking piece substrate43and a bolt4311. The second driving device40drives the driving rotary disc44to periodically rotate around the driving shaft49, so as to drive the second rolling member471to roll along the annular surface440of the driving rotary disc44by means of the driving rotary disc44, so as to drive the back plate41to vertically reciprocate by means of the driven shaft45and the driving plate46, so as to integrally drive the bearing cantilever to vertically reciprocate. The lower limit position sensor55and the upper limit position sensor56are movably embedded in an adjusting support54arranged on the side portion of the bottom of the middle plate52, the adjusting support54is provided with a strip-shaped opening541for allowing the lower limit position sensor55and the upper limit position sensor56to vertically slide in the vertical direction, and a distance formed between the lower limit position sensor55and the upper limit position sensor56in the vertical direction is adjusted, so as to determine and adjust a vibration amplitude of vertical reciprocating motion of the bearing cantilever, such that the vibration amplitude of vertical vibration of the wafer cassette in the cleaning tank90is freely adjusted.

As shown inFIG.9, several through holes4101are provided on the back plate41, and bolts are used to penetrate the through holes4101and are vertically assembled to blind holes correspondingly provided on the surface of the vertical abutting plate60and having internal threads, so as to fixedly connect the back plate41and the vertical abutting plate60. The back plate41is further provided with several through holes4102, and bolts are used to penetrate the through holes4102and are in threaded connection with and fixed to the sliders42. Four through holes4104are further provided at the bottom of the back plate41, and bolts are used to penetrate the through holes4103and are in threaded connection and fixed to four blind holes461provided on the driving plate46inFIG.8and having internal threads. In the process that the vibration mechanism integrally drives the back plate41and the vertical abutting plate60to vertically reciprocate relative to the cover plate51and the middle plate52, the driving plate46is in rigid connection with the back plate41, the back plate41achieves vertical reciprocating motion of the back plate41and the vertical abutting plate60in the direction V inFIG.1by means of two sets of sliders and guide rails that which are slidably connected to each other, and in a process of vertical reciprocating motion of the back plate41and the vertical abutting plate60, the middle plate52remains stationary with the cover plate51.

Moreover, the lower limit position sensor55and the upper limit position sensor56are each connected to a control system (such as a programmable logic controller (PLC)) by means of a wire, and the control system periodically sends forward and reverse rotation driving signals to the second electric motor400. A bent portion is formed by the blocking piece431towards a direction of the middle plate52, and when the bent portion moves to the lower limit position sensor55or the upper limit position sensor56in the vertical direction, a position signal that the back plate41has reached a lower limit position or an upper limit position is sent to the control system.

In combination withFIGS.11-13, when the control system receives the position signal that the back plate41has reached the upper limit position, the driving rotary disc44inFIG.12is driven by the second electric motor400in an anticlockwise direction to drive the driving rotary disc44to rotate in a direction perpendicular to the paper surface, thereby driving the driving plate46and the back plate41to move downwards in the vertical direction; and when the control system receives the position signal that the back plate41has reached the lower limit position, the driving rotary disc44is driven by the second electric motor400in a clockwise direction of the driving rotary disc44inFIG.12to rotate in a direction perpendicular to the paper surface, thereby driving the driving plate46and the back plate41to move upwards in the vertical direction. Thus, the vibration amplitude (i.e., a vibration stroke) formed by the bearing cantilever between the upper limit position and the lower limit position in the vertical direction is achieved, and the vibration amplitude may be flexibly adjusted by adjusting a distance between the lower limit position sensor55and the upper limit position sensor56in the vertical direction, so as to adjust the variation amplitude of the bearing cantilever in the cleaning tank90.

With reference toFIGS.1,2and15-17, in this embodiment, an upper surface of the bearing plate24is provided with four first positioning members27and four second positioning members28arranged at an outer side of the first positioning member27, and the bearing plate24is provided with a positioning groove242recessed at an outer side of the second positioning member28.

With reference toFIG.15, the top of the wafer cassette83has an opening for the wafer1to be inserted into the clamping groove831in a vertical posture, and the wafer cassette83is inserted into a plurality of four-inch wafers. Two sides of the bearing plate24in the extension direction of the axis A are each provided with a positioning groove242in a recessed manner. Positioning ribs830clamped to the four first positioning members27are arranged at the bottom of the wafer cassette83in the vertical direction perpendicular to the plane in which the wafer is located. A right-angle flange272expanding outwards and a first positioning surface271lower than the right-angle flange272are formed by a first positioning member27, so as to clamp the positioning ribs830by means of the first positioning surface271and the right-angle flange272. The four first positioning members27are arranged above the bearing plate24in a rectangular shape. The four second positioning members28are also arranged above the bearing plate24and on an outer side of the first positioning member27in a rectangular shape. A right-angled flange281retracting inwards and a second positioning surface282lower that the right-angled flange281are formed by the second positioning member28. The bearing plate24is recessed downwards in a direction P, to form a positioning groove242, and the positioning groove242is located on an outer side of a direction Q, to form an inner side wall surface241. A strip-shaped side wall formed by the outer side of the right-angle flange281in the direction Q and the inner side wall surface241jointly define two positioning grooves242recessed in the bearing plate24and provided in parallel. The wafer cassette83is inserted into the bearing plate24in a direction indicated by an arrow P, and end portions of two ends of the two positioning ribs830are clamped into the right-angled flange272respectively and make contact with the first positioning surface271.

With reference toFIG.16, the top of the wafer cassette82has an opening for the wafer1to be inserted into the clamping groove821in a vertical posture, and the wafer cassette82is inserted into a plurality of six-inch wafers. The bottom of the wafer cassette82in the vertical direction perpendicular to the plane in which the wafer is located is provided with a positioning rib820clamped into the second positioning member28. The wafer cassette82is inserted into the bearing plate24in the direction indicated by an arrow P, and end portions of two ends of the two positioning ribs820are clamped into the right-angled flanges281and make contact with the second positioning surfaces282respectively.

With reference toFIG.17, the top of the wafer cassette81is provided with an opening for the wafer1to be vertically inserted into the clamping groove821, and a plurality of eight-inch wafers are inserted into the wafer cassette81. A positioning rib810clamped into the positioning groove242is arranged at the bottom of the wafer cassette81in the vertical direction perpendicular to the plane in which the wafer is located.

According to the bearing assembly for a semiconductor apparatus accommodating device disclosed in this embodiment, the rotating force is applied by means of the rotating roller16, to the edge of the semiconductor apparatus inserted into the semiconductor apparatus accommodating device80, so as to make the semiconductor apparatus rotate in the clamping groove of the semiconductor apparatus accommodating device80, such that it is ensured that in a semiconductor manufacturing process of executing wet etching or cleaning on the semiconductor apparatus, part of an area in which the semiconductor apparatus makes contact with the clamping groove of the semiconductor apparatus accommodating device80may be completely exposed, and the technical problem that chemical glue and particles may not be effectively removed from the edge in which the semiconductor apparatus makes contact with the inner wall surface of the clamping groove is effectively solved, such that a treatment effect of cleaning and wet etching on the semiconductor apparatus is improved, and the technical effect that uniformity of wet etching is better is indirectly obtained, so as to make integral thinning uniformity better when the semiconductor apparatus executes a thinning process on the basis of wet etching.

The vibration mechanism integrally drives the back plate41and the vertical abutting plate60to vertically reciprocate relative to the cover plate51, so as to integrally drive the bearing cantilever, to vertically reciprocate, such that the semiconductor apparatus does vertical reciprocating motion on the basis of the bearing cantilever in the process of executing wet etching or cleaning, so as to drive the semiconductor apparatus accommodating device80born by the bearing plate24to vertically reciprocate, and the semiconductor apparatus clamped in the semiconductor apparatus accommodating device80vertically vibrates, such that chemical glue and particles attached to a surface of the semiconductor apparatus are vibrated off favorably, and the effects of semiconductor manufacturing processes such as wet etching and cleaning of the semiconductor apparatus are improved.

The bearing assembly for a semiconductor apparatus accommodating device does not need to depend on a cleaning tank for mounting an ultrasonic or megasonic generator, such that the situation that damage is caused to a microscopic device formed in the semiconductor apparatus by using ultrasonic waves or megasonic waves in the cleaning or wet etching process is effectively avoided, and the undesirable phenomenon that a metal film is stripped from a substrate is avoided.

In cooperation withFIG.19, on the basis of the technical solution of the bearing assembly for a semiconductor apparatus accommodating device disclosed in Embodiment 1, this embodiment further discloses a semiconductor apparatus cleaning device100.

The semiconductor apparatus cleaning device100includes: several cleaning tanks90forming accommodating cavities, housings91enclosing the cleaning tanks, and several bearing assemblies for semiconductor apparatus accommodating devices of Embodiment I fixedly connected to the housings91. A bearing cantilever in the bearing assembly extends into the accommodating cavity of the cleaning tank90. Actual wall thicknesses of both the cleaning tank90and the housing91inFIG.19are neglected, and in combination withFIG.4, screw holes525are provided in four corners and in a middle of the middle plate52, and blind holes (not shown) having internal threads are also provided in one side of the cover plate51facing the middle plate52and located opposite the screw holes525.

In actual mounting, the bolt (not shown) may horizontally and continuously penetrates the side wall of the housing91and extends through the screw hole525, so as to finally reliably connect the blind hole provided in the cover plate51and having internal threads, such that the cover plate51and the middle plate52may be fixed to the housing91. In this case, the back plate41may be driven by the second driving device40to drive the back plate41to vertically reciprocate in the direction V inFIG.1, such that the vertical abutting plate60is driven by the back plate41to vertically reciprocate relative to the cover plate51, so as to integrally drive the bearing cantilever to vertically reciprocate, such as to execute vibration cleaning wafers on the wafer cassettes83-81(which is a subordinate concept of the semiconductor apparatus accommodating device80) born by the bearing assembly for a semiconductor apparatus accommodating device80in the cleaning solution accommodated in the accommodating cavity (such as a cube) of the cleaning tank90. A liquid level94formed by the cleaning solution is always higher than the semiconductor apparatus accommodating device80in a cleaning or wet etching process. The semiconductor apparatus accommodating device80reciprocates in the cleaning tank90in the direction indicated by the double-sided arrow K to generate a vibration effect on a plurality of wafers1inserted into the semiconductor apparatus accommodating device80.the rotating force is applied by means of one or more rotating rollers16(or a rotating roller16a), to the edge of the semiconductor apparatus inserted into the semiconductor apparatus accommodating device (i.e., wafer cassettes83-81), so as to drive the wafer to rotate and/or vibrate in the clamping grooves831-811of the wafer cassette, such that part of a cambered edge area in which the wafer makes contact with the clamping grooves831-811may be completely exposed, a more thorough cleaning or wet etching effect on semiconductor devices such as wafers is achieved, and the technical effect of better wet etching uniformity is indirectly achieved.

The semiconductor apparatus cleaning device100may include a plurality of cleaning tanks90arranged linearly, where a semiconductor apparatus accommodating device80(such as the wafer cassettes83-81) may be transferred between cleaning tanks90that execute different cleaning processes or different wet etching processes by a mechanical arm that does horizontal motion and lifting motion and is used for grabbing the wafer cassettes above the housing91.

The semiconductor apparatus cleaning device100disclosed in this embodiment has the same technical solution as Embodiment 1, which refers to Embodiment 1, which will not be repeated herein.

A series of detailed descriptions listed above are only specific descriptions of feasible implementations of the present disclosure, and are not intended to limit the scope of protection of the present disclosure. Equivalent implementations or changes made without deviating from the technical spirit of the present disclosure should fall within the scope of protection of the present disclosure.

For those skilled in the art, it is apparent that the present disclosure is not limited to the details of the above-mentioned exemplary embodiments, and the present disclosure may be implemented in other specific forms without departing from the spirit or basic features of the present disclosure. Therefore, no matter from which point of view, the embodiments should all be regarded as exemplary and non-limiting. The scope of the present disclosure is defined by the appended claims rather than the above-mentioned description, and therefore it is intended that all changes which fall within the meaning and scope of equivalency of the claims are embraced in the present disclosure. Any reference numeral in the claims should not be construed as limiting the related claims.

In addition, it should be understood that although the description is described according to implementations, not every implementation only includes one independent technical solution. This description is only for the sake of clarity. Those skilled in the art should take the description as a whole, and the technical solutions in each embodiment may also be properly combined to form other implementations that may be understood by those skilled in the art.