Device for conveying and dispersing silicon wafers

The present disclosure provides a device for conveying and dispersing a silicon wafer (100). The device for conveying and dispersing a silicon wafer (100) includes: a conveying component (20) configured for conveying a plurality of silicon wafers (200); a clamping component (10) disposed at two sides of the conveying component (20), the clamping component (10) being capable of clamping and conveying the plurality of silicon wafers (200); and a spraying component (30) disposed on the clamping component (10), wherein after the plurality of silicon wafers (200) are conveyed to an end of the conveying component (20) proximal to the spraying component (30) via the conveying component (20) and the clamping component (10), the spraying component (30) is capable of spraying water on the plurality of silicon wafers (200) to separate adjacent two of the plurality of silicon wafers (200).

TECHNICAL FIELD

The present disclosure relates to the field of a silicon slice processing, and in particular, to a device for conveying and dispersing silicon wafers.

BACKGROUND

A device for conveying and dispersing silicon wafers is used for conveying silicon wafers to a designated region and then separating the silicon wafers.

In the related art, silicon wafers are placed in a clip of a device for conveying and dispersing silicon wafers, and then put on a conveying component for transmission. Because the clip cannot hold the silicon wafers, front silicon wafers may press back silicon wafers along a conveying direction of the conveying component, resulting in no gaps between the silicon wafers. Therefore, it is difficult to separate the silicon wafers during spraying water on the silicon wafers, and it may require a large spraying force to separate the silicon wafers. However, a large spraying force may cause damage to the silicon wafers, and in addition, fine wire-cut particles on the front silicon wafers may cause the back silicon wafers to crack or break.

SUMMARY

According to various embodiments of the present disclosure, a device for conveying and dispersing silicon wafers is provided. The device for conveying and dispersing silicon wafers includes a conveying component, a clamping component, and a spraying component. The conveying component is configured for conveying a plurality of silicon wafers. The clamping component is disposed at two sides of the conveying component. An accommodating region for accommodating the plurality of silicon wafers is formed between the conveying component and the clamping component, and the clamping component is capable of clamping and conveying the plurality of silicon wafers. The spraying component is disposed on the clamping component. After the plurality of silicon wafers are conveyed to an end of the conveying component proximal to the spraying component via the conveying component and the clamping component, the spraying component is capable of spraying water on the plurality of silicon wafers to separate adjacent two of the plurality of silicon wafers.

In an embodiment, the clamping component includes a first support, a first belt, a second support, and a second belt. The first support and the second support are disposed at the two sides of the conveying component. The first belt is sleeved on the first support and capable of moving on the first support, and the second belt is sleeved on the second support and capable of moving on the second support. The first belt is matched with the second belt to clamp the plurality of silicon wafers.

In an embodiment, the clamping component includes a clamping driving unit. The clamping component is connected with the first support and the second support, respectively, and is capable of driving the first support and the second support to move, in order to change a volume of the accommodating region.

In an embodiment, the conveying component includes a third driving unit, a third belt, and a third support. The third belt is sleeved on the third support, and a third driving unit is capable of driving the third belt to move.

In an embodiment, an end of the third belt proximal to the spraying component of is provided a buffering region. The first belt, the second belt, and the third belt are capable of conveying the plurality of silicon wafers from the accommodating region to the buffering region. The first belt, the second belt are further capable of releasing a clamping of the plurality of silicon wafers in the buffering region, and the spraying component is capable of spraying water on the plurality of silicon wafers in the buffering region.

In an embodiment, the number of the third belt is one. A secondary belt is located beside two side of the third belt, respectively. The buffering region is defined by the secondary belt.

In an embodiment, the number of the third belt is one. The end of the third belt proximal to the spraying component is provided the buffering region. An end of the clamping component is provided a guiding part, and the guiding part is capable of guiding the plurality of silicon wafers located in the buffering region.

In an embodiment, the number of the third belt is two, and two third belts are separated from each other. The buffering region is defined by ends of the two third belts proximal to the spraying component.

In an embodiment, the number of the third belt is two, and two third belts are separated from each other. The buffering region is defined by ends close to the spraying component of the two third belts.

In an embodiment, the spraying component includes a first nozzle and a second nozzle. A distance between the first nozzle and the clamping component along a height direction of the device is different from a distance between the second nozzle and the clamping component along the height direction of the device. The first nozzle is away from the clamping component with respect to the second nozzle.

In an embodiment, the number of the second nozzle is multiple, and a plurality of second nozzles are disposed in parallel along a length direction of the clamping component.

Details of one or more embodiments of the present disclosure are set forth in the drawings and the description below. Other features, objects, and advantages of the present disclosure will become apparent from the specification, the drawings and the claims.

Description of reference numerals in the drawings are as follows.100represents a device for conveying and dispersing silicon wafers;10represents a clamping component;101represents an accommodating region;11represents a first support;111represents a mating section;12represents a second support;13represents a first belt;131represents a first end;132represents a second end;14represents a first driving unit;141represents a first motor;142represents a first driving wheel;1421represents a first connecting member;143represents a first driven wheel;15represents a second belt;16represents a second driving unit;161represents a second motor;162represents a second driving wheel;1621represents a second connecting member;163represents a second driven wheel;17represents a first support plate;19represents a clamping driving unit;191represents a clamping guide;192represents a clamping driving member;20represents a conveying component;21represents a third driving unit;211represents a third driving wheel;2111represents a third connecting member;212represents a third driven wheel;213represents a third motor;214represents a first wheel;215represents a transmission shaft;22represents a third belt;221represents a buffering region;222represents a secondary belt;2221represents a fourth driving wheel;2222represents a fourth driven wheel;2223represents a tensioning wheel;2224represents a fixed plate;2225represents a fifth connecting member;2226represents a sixth connecting member;23represents a third support;231represents a third support plate;30represents a spraying component;31represents a first nozzle;32represents a second nozzle;40represents a guiding part;200represents silicon wafers.

DETAILED DESCRIPTION

Hereinafter, the technical solutions in the embodiments of the present disclosure will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are merely a part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by one of ordinary skill in the art without creative efforts all belong to the scope of protection of the present disclosure.

It should be noted that when a component is referred to as being “arranged” on another component, it may be directly arranged on the other component or an intervening component may be presented. When a component is considered to be “disposed” on another component, it may be directly disposed on the other component or an intervening component may be presented at the same time. When a component is considered to be “fixed” to another component, it may be directly fixed to the other component or an intervening component may be presented at the same time.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure pertains. The terminology used in the specification of the present disclosure is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure. As used herein, the term “or/and” may include any and all combinations of one or more associated listed items.

Referring toFIG.1,FIG.3, andFIG.5, a device100for conveying and dispersing silicon wafers provided by the present disclosure is configured for conveying and dispersing silicon wafers200.

Specifically, the device100for conveying and dispersing silicon wafers may include a clamping component10, a conveying component20, and a spraying component30. The clamping component10may be disposed at two sides of the conveying component20. An accommodating region101may be formed between the clamping component10and the conveying component20. The silicon wafers200may be placed in the accommodating region101. Since the conveying component20can be driven, the clamping component10may clamp the silicon wafers200and convey the silicon wafers200by a driving of the conveying component20, such that the silicon wafers200can be clamped and conveyed to an end of the conveying component20proximal to the spraying component30. The spraying component30may be connected to the clamping component10to spray water on the silicon wafers200, so that adjacent silicon wafers200can be separated from each other.

As such, the silicon wafers200may be clamped by the clamping component10, so that front silicon wafers200may not apply forces to back silicon wafers200. Thus, the front silicon wafers200and the back silicon wafers200may keep gaps therebetween without abutting each other. In addition, spraying forces for spraying subsequent wafers200may be reduced. Thus, the silicon wafers200can be easily separated when water is sprayed thereon, and the silicon wafers200may be protected from being damaged by large spraying forces. Meanwhile, back silicon wafers200may be protected from being damaged by abutting of front silicon wafers200, and the back silicon wafers200may not be worn by fine particles on the front silicon wafers200, such that the back silicon wafers200may remain intact and may be prevented from cracking or breaking.

The clamping component10may include a first support11and a second support12which are parallel to each other. The first support11and the second support12may be disposed at the two sides of the conveying component20, respectively.

The clamping component10may further include a first belt13, a first driving unit14, a second belt15, and a second driving unit16. The first driving unit14may be connected to the first support11, and the second driving unit16may be connected to the second support12. The first belt13and the second belt15may be disposed at two sides of the silicon wafers200. The first driving unit14is capable of driving the first belt13to drive, and the second driving unit16is capable of driving the second belt15to drive. The first belt13and the second belt15is capable of clamping the silicon wafers200, and cooperating with the conveying component20to convey the silicon wafers200.

In the present embodiment, the first driving unit14may include a first motor141, a first driving wheel142, and a first driven wheel143. The first driving wheel142may be disposed at an end away from the spraying component30of the first support11. The first driven wheel143may be disposed at an end away from the first driving wheel142of the first support11. The first belt13may be disposed outside the first support11, the first driving wheel142, and the first driven wheel143. An output shaft of the first motor141may be connected to the first driving wheel142to drive the first driving wheel142to rotate. The first driving wheel142may drive the first driven wheel143to rotate via the first belt13. In other embodiments, a rotary cylinder may further be employed to drive the first driving wheel142to rotate.

In the present embodiment, the second driving unit16may include a second motor161, a second driving wheel162, and a second driven wheel163. The second driving wheel162may be disposed at an end away from the spraying component30of the second support12. The second driven wheel163may be disposed at an end away from the second driving wheel162of the second support12. The second belt15may be disposed outside the second support12, the second driving wheel162and the second driven wheel163. An output shaft of the second motor161may be connected to the second driving wheel162and configured to drive the second driving wheel162to rotate. The second driving wheel162may drive the second driven wheel163to rotate via the second belt15. In other embodiments, a rotary cylinder may further be employed to drive the second driving wheel162to rotate.

A first support plate17may be disposed at an inner side of the first support11. The first support plate17may be disposed between the first support11and the first belt13, so as to support the first belt13. A second support plate (not shown) may be disposed at an inner side of the second support12. The second support plate may be disposed between the second support12and the second belt15, so that the first belt13and the second belt15may better clamp the silicon wafers200.

The first belt13may be disposed at a side of the first support11, and the second belt15may be disposed at a side of the second support12. An end away from the first support11of the first driving wheel142and an end away from the first support11of the first driven wheel143may be provided with a first connecting member1421, respectively. An end of the first connecting member1421provided at the first driving wheel142may be fixed and connected to the first support11, and the other end thereof may be rotatably connected to the first driving wheel142to support the first driving wheel142. An end of the first connecting member1421provided at the first driven wheel143may be fixed and connected to the first support11, and the other end thereof may be rotatably connected to the first driven wheel143to support the first driven wheel143. An end away from the second support12of the second driving wheel162and an end away from the second support12of the second driven wheel163may be provided with a second connecting member1621, respectively. An end of the second connecting member1621provided at the second driving wheel162may be fixed and connected to the second support12, and the other end thereof may be rotatably connected to the second driving wheel162to support the second driving wheel162. An end of the second connecting member1621provided at the second driven wheel163may be fixed and connected to the second support12, and the other end thereof may be rotatably connected to the second driven wheel163to support the second driven wheel163.

The clamping component10may further include a clamping driving unit19. The clamping driving unit19may be connected to the first support11and the second support12, respectively, so that the first support11and the second support12can move towards or opposite to each other, thereby changing a volume of the accommodating region101. Accordingly, the first support11and the second support12may be released before receiving the silicon wafers200, such that when the first belt13and the second belt15may be released, the silicon wafers200can enter the clamping component10, and then the silicon wafers200may be clamped.

The clamping driving unit19may include a clamping guide191and a clamping driving member192. The clamping guide191may be connected to the first support11and the second support12, respectively. In addition, the clamping driving member192may be connected to the first support11and the second support12, respectively. Both of the first support11and the second support12may be provided with a mating section111. Each mating section111may move along the clamping guide191. The clamping driving member192may drive the first support11and the second support12to move along a width direction of the first support11and a width direction of the second support12, respectively. It should be noted that the width direction of the first support11and the width direction of the second support12in the present disclosure refers to a direction of a line which connects a center of the first support11and a center of the second support12.

In the present embodiment, the number of the clamping driving unit19may be two. One of the two clamping driving units19is connected to the first support11, and the other of the two clamping driving units19is connected to the second support12. In addition, the number of the clamping guide191may be four. Two of the four clamping guides191may be disposed proximal to both ends of the first support11, respectively. The first support11may be provided with two mating sections111, so that the first support11may move more smoothly. The other two of the four clamping guides191may be disposed proximal to both ends of the second support12, respectively. The second support12may be provided with two mating sections111, so that the second support12may move more smoothly. The clamping driving member192may be two cylinders, in which a telescopic shaft of one cylinder may be connected to the first support11, and a telescopic shaft of the other cylinder may be connected to the second support12, so as to drive the first support11and the second support12to move, respectively. In other embodiments, the number of clamping guide191may be 2, 3, 5, or more, and the number of clamping driving member192may be 3, 4, or more. In addition, the clamping driving member192may be a motor.

The conveying component20may include a third driving unit21, a third belt22, and a third support23. The third belt22may be sleeved outside the third support23. The third driving unit21is capable of driving the third belt22for conveying. The silicon wafers200may be placed on the third belt22.

The third driving unit21may include a third driving wheel211and a third driven wheel212which are disposed at both ends of the third support23, respectively. The third belt22may be sleeved outside the third driving wheel211and the third driven wheel212. The third driving wheel211may drive the third driven wheel212to rotate via the third belt22.

In the present embodiment, the third driving unit21may further include a third motor213, a first wheel214and a transmission shaft215. An output shaft of the third motor213may be provided with a rotating wheel, which may drive the first wheel214to rotate via a belt. The first wheel214may be connected to the third driving wheel211via the transmission shaft215, thereby driving the third driving wheel211to rotate. In other embodiments, the third motor213may be replaced by a rotary cylinder, or the third motor213may also directly drive the first wheel214to rotate.

Both sides of the third driving wheel211and both sides of the third driven wheel212may be provided with third connectors2111. An end of the third connecting member2111provided at the third driving wheel211may be fixed and connected to the third support23, and the other end thereof may be rotatably connected to the third driving wheel211to support the third driving wheel211. An end of the third connecting member2111provided at the third driven wheel212may be fixed and connected to the third support23, and the other end thereof may be rotatably connected to the third driven wheel212to support the third driven wheel212.

A third support plate231may be disposed at a side of the third support23facing the first support11and the second support12. The third support plate231may be disposed between the third support23and the third belt22to support the third belt22.

A buffering region221may be defined at an end of the third belt22proximal to the spraying component30. The first belt13and the second belt15may transfer the silicon wafers200to the buffering region221. In the buffering region221, the first belt13and the second belt15may release a clamping of the silicon wafers200. That is, the first belt13may have first ends131disposed opposite to each other, and the second belt15may have second ends132disposed opposite to each other, the second ends132being away from the spraying component30with respect to the first ends131. The buffering region221may protrude in a direction away from the second ends132with respect to the first belt13and the second belt15. The spraying component30may spray water on the silicon wafers200in the buffering region221. At this time, the silicon wafers200may break away from a clamping of the first belt13and the second belt15, and the spraying component30may spray water on the silicon wafers200, so that the silicon wafers200may be fan-shaped and dumped onto a wafer inserting head (not shown).

As such, the silicon wafers200may be separated from the first belt13and the second belt15after entering the buffering region221, so that the silicon wafers200can be toppled towards a direction away from silicon wafers200behind. Therefore, a successful separation of the silicon wafers200may be realized.

When the conveying component20lifts the silicon wafers200from a material frame, the silicon wafers200may be placed vertically on the third belt22, and may be conveyed vertically to the buffering region221by a synchronous convey of the third belt22, the first belt13, and the second belt15. Alternatively, the silicon wafers200may be placed obliquely on the third belt22, and may be conveyed obliquely to the buffering region221by a synchronous convey of the third belt22, the first belt13, and the second belt15. Alternatively, the silicon wafers200may be placed vertically on the third belt22and conveyed synchronously by the third belt22, the first belt13, and the second belt15, and when the silicon wafers200approaches the buffering region221, the silicon wafers200may be sent obliquely to the buffering region221. The silicon wafers200may be tilted in the following manners. When driving the third driving unit21firstly and then driving the first driving unit14and the second driving unit16, the third belt22may run ahead of the first belt13and the second belt15. Alternatively, the first belt13and the second belt15are driven to move in an opposite direction for a certain distance by the first driving unit14and the second driving unit16. Alternatively, when the silicon wafers200are vertically conveyed proximal to the buffering region221, a speed of the first belt13and that of the second belt15may be slowed down, or a conveyance of the first belt13and the second belt15may be stopped, so that the silicon wafers200may be inclined at a certain angle towards the second ends132.

Referring toFIG.1andFIG.2, the number of the third belt22may be one. One or more secondary belts222may be located beside both sides of an end of the third belt22proximal to the spraying component30. The buffering region221may be defined by the secondary belt222.

As such, the silicon wafers200may be successfully separated.

At an end adjacent to the spraying component30, the third belt22may be retracted with respect to the secondary belt222. The secondary belt222may protrude in a direction away from the second end132with respect to the first belt13and the second belt15, and thus the buffering region221may be defined by a protrusion part of the secondary belt222.

The secondary belt222may be made of a material having a friction coefficient less than 0.3. A friction coefficient of the third belt22may be greater than that of the secondary belt222. When the silicon wafers200are transferred to the secondary belt222, the spraying component30may spray water on the secondary belt222, and thus a smooth secondary belt222can successfully separate a silicon wafer200from a subsequent silicon wafer200.

The secondary belt222may be provided with a fourth driving wheel2221, a fourth driven wheel2222and a tensioning wheel2223. The fourth driving wheel2221may be connected to a transmission shaft215. The transmission shaft215may drive the fourth driving wheel2221to rotate, and the fourth driving wheel2221may drive the fourth driven wheel2222to rotate, thereby realizing a transmission of the secondary belt222. The tensioning wheel2223is configured for tensioning the secondary belt222.

Both sides of the secondary belt222may be provided with a fixed plate2224, respectively. A fifth connecting member2225and a sixth connecting member2226may be provided on the fixed plate2224. An end of the fifth connecting member2225may be fixed and connected to the fixed plate2224, and the other end thereof may be rotatably connected to the fourth driven wheel2222. An end of the sixth connecting member2226may be fixed and connected to the fixed plate2224, and the other end thereof may be rotatably connected to the tensioning wheel2223, thereby supporting the fourth driven wheel2222and the tensioning wheel2223.

Referring toFIG.3andFIG.4, a structure of a device for conveying and dispersing silicon wafers of the present embodiment is substantially the same as that of the device for conveying and dispersing silicon wafers in Embodiment 1, and thus, similarities will be omitted, and differences are described as follows.

The number of the third belt22may be one, and the entire third belt22may be made of a material having a friction coefficient less than 0.3.

An end of the third belt22proximal to the spraying component30may protrude in a direction away from the second end132with respect to the first belt13and the second belt15. A buffering region221may be defined by a protrusion part of the third belt22. A smooth buffering region221may reduce a friction force on the silicon wafers200, facilitating a separation of the silicon wafers200.

An end of the first support11proximal to the spraying component30and an end of the second support12proximal to the spraying component30may be provided with a guiding part40, respectively. The guiding parts40are capable of guiding the silicon wafers200to enter the buffering region221, so as to prevent the silicon wafers200from losing support and toppling after being separated from the first belt13and the second belt15.

Alternatively, the guiding parts40may be two guiding wheels which can reduce a friction force on the silicon wafers200and protect the silicon wafers200from being crushed.

Referring toFIG.5andFIG.6, a structure of a device for conveying and dispersing silicon wafers of the present embodiment is substantially the same as that of the device for conveying and dispersing silicon wafers in Embodiment 2, and thus, similarities will be omitted, and differences are described as follows.

The number of the third belt22may be two, and two third belts22may be separated from each other. An end adjacent to the spraying component30of the two third belts22may protrude in a direction away from the second ends132with respect to the first belt13and the second belt15. Protrusion parts of the two third belts22may be defined as a buffering region221.

Both the third belts22are made of a material having a friction coefficient less than 0.3. That is, both the third belts22are smooth, thereby reducing a friction force on the silicon wafers200and facilitating a separation of the silicon wafers200.

The spraying component30may include a first nozzle31and a second nozzle32. The first nozzle31may be disposed proximal to the third belt22with respect to the second nozzle32, that is, the first nozzle31may be proximal to bottoms of the silicon wafers200. When the first nozzle31may spray water on the bottoms of the silicon wafers200, the bottoms of the silicon wafers200may be applied with forces. At this time, the silicon wafers200may be separated from the first belt13and the second belt15, and an upper end of a silicon wafer200can be toppled away from adjacent silicon wafers200. The second nozzle32may spray water on an upper end of a silicon wafer200to help separate the silicon wafer200from adjacent silicon wafers200, and may control tilt angles of the silicon wafers200, so that the silicon wafers200may be topped to an inserting head in a fan shape.

The number of second nozzle32may be multiple, and a plurality of second nozzles32may be disposed in parallel along a length direction of the third belt22. An amount of water sprayed by the plurality of second nozzles32can be adjusted as required. The plurality of second nozzles32may cooperate with each other to control tilt angles of the silicon wafers200. When spraying water, some of the plurality of second nozzles32closest to the second ends132among the first nozzles31and the second nozzles32may simultaneously spray water, so that a silicon wafer200may be separated from a following silicon wafer200, and then the remaining of the plurality of second nozzles32may be controlled to start to spray water. Since an amount of water sprayed by the second nozzles32are different, the silicon wafers200can be more completely separated, and the tilt angles of the silicon wafers200can be controlled by cooperation of the second nozzles32. It should be noted that a length direction of the clamping component10and that of the third belt22refer to an advancing/moving direction of the silicon wafers200on the third belt22.

As such, a plurality of second nozzles32may cooperate with each other, so that the silicon wafers200may remain upright with a certain inclined angle.

In the present embodiment, the number of the first nozzle31may be two, and two first nozzles31may spray water on both sides of the silicon wafers200, and the second nozzles32may spray water on both sides of the silicon wafers200, which can ensure an amount and an uniformity of sprayed water, and also can prevent the first nozzles31and the second nozzles32from blocking the silicon wafers200to move forward.

During an operation, the device100for conveying and dispersing silicon wafers may be placed in a wafer inserting water tank. A material frame in which the silicon wafers200are placed may be placed on the device100for conveying and dispersing silicon wafers. The third belt22may extend from a bottom of the material frame to jack up the silicon wafers200and drive the clamping driving unit19to clamp the silicon wafers200. The silicon wafers200may be conveyed to the buffering region221by the first belt13, the second belt15, and the third belt22. The first nozzles31may spray water on bottoms of the silicon wafers200, so that upper ends of the silicon wafers200tend to topple towards a direction away from the second ends132. Then, the second nozzles32may spray water on the upper ends of the silicon wafers200, so that current silicon wafers200may be separated from adjacent silicon wafers200.

The technical features of the above-described embodiments may be combined in any combination. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, all should be considered as within the scope of this disclosure.

The above-described embodiments are merely illustrative of several embodiments of the present disclosure, and the description thereof is relatively specific and detailed, but is not to be construed as limiting the scope of the disclosure. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the disclosure. Therefore, the scope of the disclosure should be determined by the appended claims.