KR20130111700A - Sorting apparatus for tray - Google Patents

Abstract

PURPOSE: A tray sorting device is provided to improve the productivity of a package process by packing trays in which a good quality semiconductor package is accumulated with a package number unit. CONSTITUTION: A tray sorting device includes a dump module (100) and detects an empty pocket to accumulate a semiconductor package. The dump module accumulates the full trays and a load tray loading unit (110) and a load tray transfer unit (115). The load tray loading unit loads a load tray set. The load tray set includes a plurality of load trays. The load tray transfer unit transfers one load tray in the load tray set.

Description

Tray sorting device {SORTING APPARATUS FOR TRAY}

The present invention relates to a tray sorting apparatus.

In general, semiconductor packages such as integrated circuits (ICs) and large-scale integrated circuits (LSIs) enclose a chip in which a highly integrated circuit such as a transistor or a capacitor is formed on a semiconductor substrate made of silicon, and the external connection of the semiconductor chip. Wire bonding of the terminal and the lead frame with metal wires allows the semiconductor chip and the lead frame to be energized, and is manufactured by molding and sealing a chemical resin on the upper surface of the semiconductor substrate to protect the semiconductor chip and the metal wire portion. do.

The semiconductor package manufactured as described above is subjected to a singulation process in which the packages connected by the lead frame are cut by chips and separated separately, and the quality inspection of each semiconductor package cut by the singulation process is performed. According to the inspection result, it can be classified into grades (goods and defectives) and loaded into trays so that they can be moved to the next process.

Meanwhile, a conventional apparatus (system) for performing quality inspection of semiconductor packages and classifying them into grades (goods and defectives) and placing them on a tray may be the vision inspection apparatus disclosed in Korean Patent Laid-Open No. 10-2010-0100198. have.

The vision inspection apparatus sorts the good and defective products by vision into the semiconductor package in the tray, and loads the good products into the good tray, and classifies only the defective items into the bad tray.

A full tray in which good semiconductor packages classified by the vision inspection apparatus are stacked in all pockets is transferred to a packaging process, which is a subsequent process.

In the packaging process, a predetermined number of full trays are bundled and packed in a band. Accordingly, prior to the packaging process, a process of checking whether the tray to be packaged is the full tray, detecting an empty pocket in the tray to be packaged, loading a good semiconductor package in the empty pocket, and stacking the full tray by a predetermined number unit The process is necessary. Since all of the above processes are performed by a worker's manual work, productivity is reduced. Accordingly, there is a need for a tray sorting apparatus capable of automatically performing the above processes to improve productivity.

The present invention is to solve the above-described problems, the tray is automatically supplied with a stacked tray automatically fills the semiconductor package in the empty pocket of the tray to make a full tray, the tray is classified into a predetermined number of units and automatically discharged tray It is a technical problem to provide a sorting apparatus.

The tray sorting apparatus according to the present invention for achieving the above-described technical problem is to detect the empty pocket in the tray so that the semiconductor package is loaded in all the pockets provided in the tray to load the semiconductor package in the empty pocket A dump module for making a full tray and stacking and disposing the full tray by a packing number unit, wherein the dump module includes a load tray loading in which a load tray set having a plurality of load trays is loaded; unit; A load tray transfer unit for extracting and transferring one load tray from the load tray set; A tray step moving unit on which a dummy tray loaded with a plurality of semiconductor packages is mounted; A vision unit for detecting an empty pocket in a load tray carried by the load tray transfer unit; A package picker unit which picks up a semiconductor package from the dummy tray and loads the semiconductor package in the empty pocket to make the full tray; A tray unloading unit for stacking the pull trays in units of packing numbers; And a tray pass unit for discharging the full tray set stacked by the number of packing units by the tray unloading unit.

The load tray loading unit may include a tray set stacking unit in which the load tray set is loaded and loaded; A temporary support for temporarily supporting a load tray set loaded on the tray set stacking unit; A tray loading elevating unit supporting the set of load trays temporarily supported by the temporary supporting unit, and lowering only the lowermost load tray from the supported load tray set to seat the load tray transfer unit; And a tray separator configured to support the remaining load trays except the lowermost load tray when the load tray set is supported by the tray loading lifter.

The load tray transfer unit may include a pair of rail members installed to cross the vision unit to support the lowermost load tray lowered by the tray loading lift unit; A tray clamp member for clamping a load tray supported by the pair of rail members; And a clamp transfer member configured to transfer the rod tray clamped to the tray clamp member on the pair of rail members.

The dump module includes an empty tray stacking conveyor in which empty trays in which semiconductor packages are not stacked are stacked in all pockets; A tag tray stacking conveyor on which tag trays stacked on top of the load tray set are stacked; And a tray picker unit which picks up the empty tray from the tray step moving unit and stacks the empty tray on the empty tray stacking conveyor, or picks up the tag tray transferred from the load tray transfer unit and stacks it on the tag tray stacking unit. Characterized in that the configuration.

The dump module comprises: an empty tray waiting conveyor configured to temporarily receive an empty tray set having a plurality of empty trays stacked from the empty tray stacking conveyor; And a tag tray waiting conveyor configured to temporarily receive a tag tray set having a plurality of tag trays stacked from the tag tray stacking unit.

The tray sorting apparatus may include a buffer module for temporarily storing the load tray set and temporarily storing the full tray set discharged from the tray path unit; And a multi tray picker unit configured to transfer the load tray set and the full tray set while transferring between the dump module and the buffer module.

The dump module may include: a loading waiting conveyor for temporarily waiting for a set of load trays loaded from the outside or for temporarily setting a load tray set transferred from the multi tray picker unit; And an unloading waiting conveyor for temporarily waiting for the full tray set transferred from the multi tray picker unit.

The multi tray picker unit may pick up the load tray set from the loading waiting conveyor and load the load tray set into the load tray loading unit.

The multi tray picker unit may further include a tag detection unit for detecting tray information in a tag tray stacked on top of the load tray set.

The dump module is installed between the empty tray stacking conveyor and the tray step moving unit to receive the empty tray from the tray picker unit, invert the empty tray, and then drop the semiconductor package remaining in the empty tray. And a tray reversing unit, wherein the tray picker unit picks up the empty tray from the tray reversing unit and stacks the empty tray on the empty tray stacking conveyor.

The tray inverting unit detects the falling semiconductor package and generates an error signal according to a detection result.

The tray picker unit stacks a plurality of tag trays on the tag tray stacking conveyor, and stacks a tag tray stacked on the uppermost side in a stacking direction different from that of other tag trays.

The buffer module may include: a full tray lifting unit which is installed on a tray storage table so as to lift the full tray set supplied from the tray path unit onto the tray storage table; A full tray transfer unit which takes over the full tray set raised by the full tray lifting unit and transfers the full tray set to a tray pickup area of the tray storage table; A plurality of load tray temporary storage units which are installed in a tray pickup area of the tray storage table so as to be parallel to the full tray transfer unit, and temporarily store the load tray set transferred from the multi tray picker unit; A plurality of full tray temporary storage units installed side by side with a predetermined interval behind each of the plurality of load tray temporary storage units to temporarily store the full tray set; And picking up the full tray set raised by the full tray raising and lowering unit, distributing it to the plurality of full tray temporary storage units for temporary storage, and transferring the temporarily stored full tray set to the full tray transfer unit. And a full tray dispensing unit.

The tray sorting apparatus loads a load tray set supplied from the outside into the loading waiting conveyor, or the full tray set and the empty tray set and the tag transferred to the empty tray waiting conveyor. And a tray loading / unloading conveyor module for unloading the tag tray set transferred to a tray waiting conveyor to the outside.

The dump module is connected to both sides of the buffer module.

According to the above solution, the tray sorting apparatus according to the present invention automatically receives the stacked trays to automatically fill the good semiconductor package in the empty pocket of the tray to make a full tray, sorting the full tray by the number of packaging units The discharge process can be carried out automatically. For this reason, the tray sorting apparatus according to the present invention can improve the productivity of the packaging process of packaging the tray on which the semiconductor package of the good product is loaded in units of the number of packages after the quality inspection of the semiconductor package.

1 is a perspective view showing a tray sorting apparatus according to an embodiment of the present invention.
2 and 3 are perspective and plan views illustrating the first and second dump modules and the buffer module illustrated in FIG. 1.
4 is a perspective view illustrating the first dump module illustrated in FIGS. 1 to 3.
FIG. 5 is a perspective view illustrating a load tray loading unit, a load tray transfer unit, a vision unit, a tray step moving unit, and a tray unload unit shown in FIG. 3.
FIG. 6 is a front view illustrating the load tray loading unit and the load tray transfer unit illustrated in FIG. 5.
7 and 8 are views for explaining the load tray transfer unit shown in FIGS. 5 and 6.
FIG. 9 is a diagram for describing a package picker unit and a tray picker unit illustrated in FIG. 3.
10A to 10G are diagrams for explaining stepwise operations of the load tray loading unit and the load tray transfer unit included in the dump module according to the present invention.
FIG. 11 is a perspective view illustrating the buffer module illustrated in FIGS. 1 to 3.
12 is a front view of the buffer module shown in FIG. 11.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a tray sorting apparatus according to an embodiment of the present invention, Figures 2 and 3 are a perspective view and a plan view showing the first and second dump module and the buffer module shown in FIG.

1 to 3, a tray sorting apparatus according to an embodiment of the present invention may include a buffer disposed between the first and second dump modules 100 and 200 and the first and second dump modules 100 and 200. A module 300, first and second tray loading / unloading conveyor modules 400, 500, and a multi tray picker unit 600 connected to each of the first and second dump modules 100, 200, respectively. It is composed.

The first dump module 100 is connected to the first tray loading / unloading conveyor module 400 and is connected to one side of the buffer module 300.

The first dump module 100 includes a load tray LT such that a semiconductor package is loaded in all pockets provided in a load tray LT loaded from the first tray loading / unloading conveyor module 400. ) Detects empty pockets, stacks semiconductor packages in the empty pockets to form a full tray FT, and stacks the full trays FT in a packing unit and discharges the buffers to the buffer module 300.

In addition, the first dump module 100 collects a tag tray set TT on the top of the load tray set LT, and stacks a plurality of recovered tag trays TT to load the first tray. Ejected to / unloading conveyor module (400). The first dump module 100 recovers an empty tray ET generated by filling a semiconductor package in an empty pocket of the load tray LT, and recovers the recovered empty tray ET. A plurality of stacked and discharged to the first tray loading / unloading conveyor module 400.

The second dump module 200 is connected to the second tray loading / unloading conveyor module 500 and the other side of the buffer module 300. The second dump module 200 is connected to the buffer module 300 to have a symmetrical structure with the first dump module 200 with the buffer module 300 interposed therebetween. Accordingly, since the second dump module 200 performs the same operation as the first dump module 100 described above, duplicate description thereof will be omitted.

The buffer module 300 temporarily stores the full tray set FT discharged from each of the first and second dump modules 100 and 200. In addition, the buffer module 300 temporarily stores the load tray set LT transferred from the multi tray picker unit 600.

The first tray loading / unloading conveyor module 400 is connected to one side of the first dump module 100. The first tray loading / unloading conveyor module 400 loads a load tray set LT supplied from the outside to the first dump module 100 or sets a tag tray set transferred from the first dump module 100. Unload (TT) or empty tray set (ET) to the outside.

The second tray loading / unloading conveyor module 500 is connected to one side of the second dump module 100. The second tray loading / unloading conveyor module 500 loads the load tray set LT supplied from the outside to the second dump module 200 or sets the tag tray set transferred from the second dump module 200. Unload (TT) or empty tray set (ET) to the outside.

The multi tray picker unit 600 transfers the trays LT and FT between the modules 100, 200, and 300 while transferring the first and second dump modules 100 and 200 and the buffer module 300 to cross the buffer module 300. Let's do it. The multi tray picker unit 600 includes a tag detection unit configured to detect tray information in a tag tray set TT at the top of the load tray set LT. In this case, the tray information may include information such as the size, type, and number of semiconductor packages loaded on the load tray, the number of load tray sets, and the like.

On the other hand, the tray sorting apparatus according to an embodiment of the present invention, the first and second dump module (100, 200), the buffer module 300, the first and second tray loading / unloading conveyor module (400, 500), And a control device (not shown) for controlling each of the multi tray picker units 600 to be organically operated. The control apparatus automatically fills a semiconductor package in an empty pocket of a load tray to form a full tray, and controls the tray sorting apparatus to organically perform a tray sorting process of automatically classifying and discharging the pull tray into a predetermined number unit.

4 is a perspective view showing the first dump module shown in FIGS. 1 to 3, and FIG. 5 is a load tray loading unit, a load tray transfer unit, a vision unit, a tray step moving unit, and a tray unload shown in FIG. 3. It is a perspective view showing a unit.

2 to 5, the first dump module 100 includes a load tray loading unit 110, a tray transfer unit 115, a vision unit 120, and a tray step moving. The unit includes a tray step moving nit 125, a package picker unit 130, a tray unloading unit 135, and a tray path unit 140.

The load tray loading unit 110 supports the load tray set LT supplied by the multi tray picker unit 600 described above. To this end, the load tray loading unit 110, as shown in Figures 5 and 6, the tray set stacking portion (110a), the temporary support portion (110b), tray loading lifting unit (110c), tray separating unit (110d) It is configured to include).

The tray set stacking unit 110a is loaded and loaded with a load tray set LT supplied by the multi-tray picker unit 600 described above.

The temporary support 110b is installed at both lower sides of the tray set stacking unit 110a to temporarily support the load tray set loaded on the tray set stacking unit 110a. The temporary support 110b may be formed of four protruding pins that are horizontally protruded toward both sides of the load tray set by the driving of each driving cylinder.

The tray loading lift unit 110c is installed below the tray set stacking unit 110a to support the lowermost load tray of the load tray set temporarily supported by the temporary support unit 110b. To this end, the tray loading elevating unit 110c includes four lifting shafts 110c 2 and four lifting shafts 110c2 each vertically coupled to each of the four support blocks 110c1 supporting the lowermost load tray. And a lifting cylinder 110c4 for lifting and lowering the four lifting shafts 110c2 simultaneously by lifting and lowering the lifting plate 110c3 in common. The tray loading lifting unit 110c raises the four lifting shafts 110c2 to support the lowermost load tray, and lowers the four lifting shafts 110c2 sequentially by the thickness of the load tray to load the lowermost load tray. It rests on the tray transfer unit 115. In addition, when the lowermost load tray is seated on the load tray transfer unit 115, the tray loading lift unit 110c further lowers the four lift shafts 110c2 and positions the lift shaft 110c2 in the home position.

The load tray transfer unit 115 is connected to the load tray loading unit 110 and draws one load tray from the load tray set LT supported by the load tray loading unit 110 to be horizontal in the Y-axis direction. Transfer. That is, the load tray transfer unit 115 withdraws one load tray loaded in the lowermost layer from the load tray set LT and horizontally transfers it toward the vision unit 125, the package picker unit 130, and the tray unload unit 135. . To this end, the rod tray transfer unit 115 is, as shown in Figures 5 to 8, a pair of rail member 115a, tray clamp member 115b, clamp lifting member 115c, and clamp conveying member And 115d.

The pair of rail members 115a are installed to cross the vision unit 120 and are installed side by side to support the lowermost load tray lowered by the tray loading lift 110c of the load tray loading unit 110. do. The tray set stacking portion 110a of the load tray loading unit 110 described above is installed on both front ends of the pair of rail members 115a. The temporary support part 110b and the tray separating part 110d of the above-described load tray loading unit 110 are installed in two layers on both front ends of the pair of rail members 115a.

The tray clamp member 115b supports and clamps the load tray supported by the pair of rail members 115.

The clamp lifting member 115c lifts and lowers the tray clamp member 115b while supporting the tray clamp member 115b in a liftable manner. The clamp elevating member 115c elevates the tray clamp member 115b so that the tray clamp member 115b supports and clamps the rod tray seated on the pair of rail members 115a. The clamp lifting member 115c may be formed of a lifting cylinder.

The clamp conveying member 115d supports the clamp raising and lowering member 115c so as to be conveyable. Such a clamp conveying member 115d conveys the clamp raising and lowering member 115c in the Y-axis direction when the tray clamp member 115b supports the load tray. Accordingly, the load tray supported by the tray clamp member 115b is transferred toward the tray unloading unit 135 through the vision unit 120 according to the transfer guide of the pair of rail members 115a. The clamp conveying member 115d may continuously or step convey the clamp elevating member 115c according to the driving of the ball screw or the linear motor.

Referring again to FIGS. 4 and 5, the vision unit 120 photographs the load tray transferred on the rail member 115a of the load tray transfer unit 115, and controls the photographed load tray image to a control device (not shown). To provide. Accordingly, the control device analyzes the load tray image to detect whether a semiconductor package is loaded in each of the plurality of pockets provided in the load tray, and an alignment state of the semiconductor package loaded in each pocket. In particular, the control device detects an empty pocket in which the semiconductor package is not loaded from each pocket of the load tray, generates position information of the empty pocket, and performs operation control for filling the semiconductor package in the empty pocket.

The tray step moving unit 125 is installed to be adjacent to one side of the load tray transfer unit 115 to support one dummy tray on which a plurality of semiconductor packages are loaded. In this case, the dummy tray may be a load tray that has passed through the vision unit 120, and a plurality of semiconductor packages may be loaded or may be the full tray. The tray step moving unit 125 steps the dummy tray by stepping in the Y-axis direction in response to the operation control of the control device. To this end, the tray step moving unit 125 is configured to include a dummy tray support 125a for supporting the dummy tray, and a Y-axis driver 125b for transferring the dummy tray support 125a in the Y-axis direction. .

The dummy tray support part 125a includes a support plate for supporting the dummy tray.

The Y-axis driver 125b supports the dummy tray support 125a so as to be transportable, and step-feeds the dummy tray support 125a in the Y-axis direction. In this case, the Y-axis driver 125b may step-feed the dummy tray support 125a according to the driving of the ball screw or the linear motor.

When the semiconductor package loaded in the dummy tray is exhausted in the tray step moving unit 125, the dummy tray of the tray step moving unit 125 becomes an empty tray and is transferred to another place, and the tray step moving unit 125 On the new load tray on the load tray transfer unit 115 is transported and seated.

The package picker unit 130 picks up a semiconductor package from a dummy tray of the tray step moving unit 125 and loads the semiconductor package into an empty pocket of a load tray transported from a pair of rail members 115a of the load tray transfer unit 115. This creates a full tray with semiconductor packages loaded in all pockets of the load tray. To this end, the package picker unit 130, as shown in Figure 9, a package picker (130a) having a plurality of pickup nozzles, a nozzle lifting unit (130b) for lifting the plurality of pickup nozzles, a package picker (130a) The package picker lifting unit 130c for elevating and lifting at the same time, and the package picker transporting unit 130d for supporting and lifting the package picker lifting unit 130c to be liftable and feeding in the X-axis direction.

The package picker 130a includes a plurality of pickup nozzles, each pickup nozzle having a vacuum pad. At this time, the pitch between each pickup nozzle can be automatically changed by the operation of the control device. The package picker 130a picks up a semiconductor package from a dummy tray of the tray step moving unit 125 according to an operation control of the control device, and a predetermined row of the load tray located on a loading area of the load tray transfer unit 115. Picking up a semiconductor package to be loaded in the empty pocket corresponding to the position information of the empty pocket detected in.

The nozzle elevating unit 130b is installed in the package picker 130a to support each of the plurality of pickup nozzles so that the plurality of pickup nozzles are lifted up to pick up the semiconductor package or unload the picked up semiconductor package. The nozzle lifting unit 130b may be formed of a lifting cylinder, and may be formed of a plurality of lifting cylinders to individually lift each of the plurality of pickup nozzles.

The package picker lifter 130c lifts the package picker 130a by supporting the package picker 130a in a liftable manner.

The package picker conveying means 130d transports the package picker 130a in the X-axis direction by supporting the package picker lifter 130c so as to be transported and by horizontally conveying the package picker lifter 130c. That is, the package picker conveying means 130d transfers the package picker 130a between the package loading area provided on the rail member 115a of the load tray transfer unit 115 and the dummy tray of the tray step moving unit 125. The package picker conveying means 130d may horizontally convey the package picker 130a in the X-axis direction according to the driving of the ball screw or the linear motor.

As described above, the package picker unit 130 interlocks with the transfer of the tray clamp member and the step driving of the dummy tray, so that the package picker 130a is loaded with the load tray transfer unit 115 and the tray step moving unit 125. By repeatedly transferring between the dummy trays, the semiconductor package is filled in all the empty pockets on the load tray stepped by the load tray transfer unit 115 to the load area to make the load tray full. As a result, the load tray drawn out by the load tray transfer unit 115 and conveyed in the Y-axis direction passes through the lower portion of the vision unit 120 and the package picker unit 130 described above to become a full tray.

Meanwhile, the above-described package picker unit 130 may pick up the semiconductor package from the load tray on the load tray transfer unit 115 and load the semiconductor package on the dummy tray supported by the step moving unit 125 under the control of the control device. In this case, the operation of replacing the dummy tray supported by the tray step moving unit 125 with a new dummy tray as described above can be omitted.

The tray unloading unit 135 pulls out the pull trays FT transferred to the tray unloading area by the tray clamp member of the load tray transfer unit 115 one by one, and stacks the pulled pull trays in units of packing number. That is, the tray unloading unit 135 pulls out the pull trays FT transferred to the unloading area one by one downward and stacks the number of packages. To this end, the tray unloading unit 135 includes an unload plate for supporting the full tray transferred to the unload area, and an unload for lowering the unload plate by the thickness of the full tray whenever the full tray FT is transferred to the unload area. It may be configured to include an elevator.

The tray pass unit 140 horizontally transfers the full tray set FT in the X-axis direction, that is, toward the buffer module 300 by the tray unloading unit 135 in units of the number of packages.

2 to 4, the first dump module 100 loads the loading standby conveyor 150, the unloading standby conveyor 155, the empty tray stacking conveyor 160, and the tag tray stacking. The conveyor 165, the tray picker unit 170, the empty tray waiting conveyor 175, and the tag tray waiting conveyor 180 are further configured to be included.

The loading waiting conveyor 150 temporarily waits for the stacked load tray LT loaded from the first tray loading / unloading conveyor module 400 or by using the multi tray picker unit 600 as described above. The load tray set LT picked up and transported by 300 is temporarily waited. The load tray set LT waiting in the loading waiting conveyor 150 is picked up by the multi tray picker unit 600 and loaded into the load tray loading unit 110.

The unloading waiting conveyor 155 temporarily waits for the full tray set FT picked up and transported from the buffer module 300 by the multi tray picker unit 600. The full tray set FT waiting on the unloading standby conveyor 155 is unloaded to the outside by a transfer conveyor by being transferred to a transfer conveyor provided in the first tray loading / unloading conveyor module 400.

The empty tray stacking conveyor 160 supports the empty tray ET. That is, the empty tray stacking conveyor 160 has an empty tray ET generated by the tray step moving unit 125 or an empty tray generated on the load tray transfer unit 115 by the package picker unit 130. (ET) is recovered and loaded. The empty tray stacking conveyor 160 transfers the empty tray set to the empty tray standby conveyor 175 through a conveyor driving when a predetermined number of empty trays ET are stacked.

The tag tray stacking conveyor 165 supports the tag tray TT. Here, the tag tray TT is stacked on the top of the load tray set TT, and then is taken out by the tray clamp member and recovered on the tray unloading unit 135. Accordingly, the tag tray loading conveyor 165 is loaded with the tag tray TT recovered on the tray unloading unit 135. The tag tray stacking conveyor 165 transfers the tag tray set to the tag tray standby conveyor 180 through a conveyor driving when a predetermined number of tag trays TT are stacked.

The tray picker unit 170 picks up an empty tray from the tray step moving unit 125 and loads the picked up empty tray onto the empty tray stacking conveyor 160 under the control of the control device. In addition, the tray picker unit 170 picks up the tag tray transferred onto the tray unloading unit 135 under the control of the control device, and loads the picked up tag tray on the tag tray stacking conveyor 165. To this end, the tray picker unit 170, as shown in Figure 9, the tray picker 172, tray picker rotating means 174, tray picker lifting means 176, and tray picker conveying means 178 It is configured to include.

Tray picker 172 is formed to include a vacuum pad or clamp jig. The tray picker 172 picks up the empty tray from the tray step moving unit 125 or the tag tray from the tray unloading unit 135 according to the lifting of the tray picker lifting means 176, and the picked empty tray is empty. The tray is loaded on the tray loading conveyor 160, and the picked up tag tray is loaded on the tag tray loading conveyor 165.

The tray picker rotating means 174 rotatably supports the tray picker 172 and may be a rotating cylinder. The tray picker rotating means 174 rotates the tray picker 172 in units of 180 degrees. For example, when the tray picker 172 picks up a tag tray and loads it on the tag tray stacking conveyor 165, the tray picker rotating means 174 loads a specific tag tray loaded on the tag tray stacking conveyor 165. The tray picker 172 is rotated to load in a direction different from that of the tag tray. That is, when the tag tray is loaded in the tag tray stacking conveyor 165 in units of 20 sheets, the tray picker rotating means 174 moves the tray picker 172 so that the first to 19th tag trays are all stacked in the same direction. Without rotating, the tray picker 172 is rotated so that the 20th tag tray stacked on the top is stacked in a direction different from that of the first to 19th tag trays. This is because the tray picker rotation means 174 may prevent the detection error from occurring when the tag trays of the tag trays are stacked in the same direction. When the tray picker 172 picks up the tag tray to be stacked on the uppermost side, the tray picker 172 is rotated 180 degrees.

The tray picker lifting means 176 supports the tray picker 172 to be lifted and lowered. The tray picker lifting means 176 raises or lowers the tray picker 172 so that the tray picker 172 can pick up the tray or unload the picked up tray. At this time, the tray picker lifting means 176 may be formed of a driving cylinder.

The tray picker conveying means 178 supports the tray picker elevating means 176 so as to be transported, and transports the tray picker 172 in the X axis direction by transporting the tray picker elevating means 176 in the X axis direction. That is, the tray picker transfer means 178 transfers the tray picker 172 between the tray unloading unit 135 and the tag tray stacking conveyor 165. The tray picker transport means 178 may horizontally transport the tray picker 172 in the X-axis direction according to the driving of the ball screw or the linear motor.

2 to 4, the empty tray waiting conveyor 175 receives the empty tray set ET according to the driving of the empty tray loading conveyor 160 to temporarily wait. The empty tray set ET waiting in the empty tray waiting conveyor 175 is unloaded to the outside by a transport conveyor by being transferred to a transport conveyor provided in the first tray loading / unloading conveyor module 400.

The tag tray waiting conveyor 180 temporarily receives the tag tray set TT according to the driving of the tag tray loading conveyor 165. The tag tray set TT waiting on the tag tray waiting conveyor 180 is unloaded to the outside by a transport conveyor by being transferred to a transport conveyor provided in the first tray loading / unloading conveyor module 400.

Meanwhile, when the above-described tray picker unit 170 loads the empty tray ET on the empty tray stacking conveyor 160, it may occur when at least one semiconductor package remains in the empty tray ET. Accordingly, the first dump module 100 may further include a tray inversion unit 190 for removing the semiconductor package remaining in the empty tray ET.

The tray reversing unit 190 is installed between the empty tray stacking conveyor 160 and the tray step moving unit 125 to receive an empty tray ET from the tray picker unit 170, and then empty tray ET. Is reversed upside down and then returned to its original position. Accordingly, the semiconductor package remaining in the empty tray ET is dropped downward by the rotation of the empty tray ET and collected by the package collection unit installed under the tray reversing unit 190.

The tray inversion unit 190 may include a package detection sensor (not shown) that detects a semiconductor package falling from the empty tray ET to the package collection unit and generates an error signal. At this time, when an error signal is generated by the package detection sensor, the operator stops driving the tray sorting device and checks whether the semiconductor package remains in the empty tray ET.

The first dump module 100 as described above is automatically supplied with a load tray set from the first tray loading / unloading conveyor module 400, the vision unit 120, the tray step moving unit 125 and the package picker unit ( Process of automatically filling the semiconductor package in the empty pocket of the load tray to form a full tray through the organic operation of 130, and classifying the full tray by a predetermined number unit through the tray unloading unit 135 and the tray pass unit 140. Discharge process automatically.

On the other hand, except that the second dump module 200 is connected to the other side of the buffer module 300 is configured in the same manner as the first dump module 100 described above and symmetrical operation with the first dump module 100 Since redundant description thereof will be omitted.

10A to 10G are diagrams for explaining stepwise operations of the load tray loading unit and the load tray transfer unit included in the dump module according to the present invention.

An operation of the load tray loading unit and the load tray transfer unit included in the dump module according to the present invention will be described with reference to FIGS. 10A to 10G as follows.

First, as shown in FIG. 10A, when the load tray set LT is loaded on the tray set stacking unit 110a provided in the pair of rail members 115a of the load tray transfer unit 115, the above-described load tray is loaded. The four protruding pins provided in the temporary support part 110b of the loading unit 110 protrude to a predetermined length to temporarily support the load tray set LT loaded on the tray set loading part 110a. In this case, each of the four protruding pins is inserted into each of the support grooves provided in each corner portion of the load tray loaded on the lowermost layer of the load tray set LT to temporarily support the load tray set LT.

Then, as shown in FIG. 10B, the four supporting shafts are driven by driving the tray loading elevator 110c of the load tray loading unit 110 to raise the four lifting shafts 110c2 of the tray loading elevator 110c. The block 110c1 is used to support the load tray set LT temporarily supported by the temporary support 110b.

Then, as shown in FIG. 10C, the four protruding pins provided in the temporary support part 110b are returned to their original positions to seat the temporarily supported load tray set LT on the four support blocks 110c1. This releases the temporary support of the load tray set LT.

Then, as shown in FIG. 10D, the four loading shafts 110c2 of the tray loading elevator 110c are lowered to a predetermined height by driving the tray loading elevator 110c of the load tray loading unit 110. . Accordingly, the load tray set LT supported by the four support blocks 110c1 is lowered according to the lowering guide of the tray set stacking portion 110a, so that the load tray set LT is lowered on the rail member 115a of the load tray transfer unit 115. It is seated.

Then, as shown in Figure 10e, when the load tray set (LT) is seated on the rail member 115a, the four protruding pins provided in the tray separating portion (110d) of the load tray loading unit 110 is a predetermined length To protrude. Accordingly, the protruding pins of the tray separating part 110d support the remaining load trays except the load tray seated on the rail member 115a. That is, the protruding pins of the tray separating part 110d are inserted into each of the supporting grooves provided at each corner portion of the load tray loaded directly on the lowermost load tray LLT of the load tray set LT, thereby lowering the load tray LLT. Support the remaining load trays. In this case, the lowermost load tray LLT is supported by the four support blocks 110c1 while the load tray set LT is seated on the rail member 115a.

Then, as shown in FIG. 10F, the tray loading lift unit 110c of the load tray loading unit 110 is driven to lower the four lift shafts 110c2 of the tray loading lift unit 110c to the home position. . Accordingly, the lowermost load tray LLT of the load tray set LT supported by the four support blocks 110c1 is completely seated on the rail member 115a of the load tray transfer unit 115, and the remaining load trays The above state is supported by the protruding pins of the tray separation unit 110d.

Then, as shown in FIG. 10G, the clamp member 115b of the load tray transfer unit 115 is raised. Accordingly, the rod tray LLT seated on the pair of rail members 115a is supported by the clamp member 115b and clamped.

Subsequently, the clamp unit 115d of the rod tray transfer unit 115 is driven to transfer the clamp member 115b in the Y-axis direction to transfer the load tray LLT supported by the clamp member 115b to the vision unit 120. And the tray unloading unit 135.

11 is a perspective view illustrating the buffer module illustrated in FIGS. 1 to 3, and FIG. 12 is a front view of the buffer module illustrated in FIG. 11.

2, 3, 11, and 12, the buffer module 300 includes a full tray lifting unit 310, a full tray transfer unit 320, a plurality of load tray temporary storage units 330, a plurality of And a full tray temporary storage unit 340, and a full tray distribution unit 350.

The full tray elevating unit 310 is provided to be elevated on the tray storage table 312 so as to be connected to the tray pass unit 140 of the dump modules 100 and 200. The full tray elevating unit 310 takes over the full tray set FT horizontally transferred toward the buffer module 300 by the tray pass unit 140 and elevates the tray storage table 312.

The full tray transfer unit 320 is installed at both edge portions of the tray storage table 312 so as to be adjacent to each of the first and second dump modules 100 and 200. The full tray transfer unit 320 takes over the full tray set FT raised by the full tray lifting unit 310 and transfers it to the tray pickup area of the tray storage table 312. In this case, the tray pick-up area corresponds to a transport path in the X-axis direction in which the above-described multi tray picker unit 600 traverses the first and second dump modules 100 and 200 and the buffer module 300. . Accordingly, the full tray transfer unit 320 takes over the full tray set FT from the full tray lift unit 310 and the full tray lift unit 310 descends when the full tray lift unit 310 descends. FT) is moved in the Y-axis direction and positioned on the tray pick-up area, that is, on the transfer path of the multi tray picker unit 600. As such, the full tray transfer unit 320 may transfer the full tray set FT in the Y-axis direction according to the driving of the ball screw or the linear motor.

The stacked full tray set FT transferred to the tray pick-up area by the full tray transfer unit 320 may include a multi tray picker unit according to a process progress state of the first and second dump modules 100 and 200. 600 is picked up and transported to the unloading atmospheric conveyor 160 of each of the first and second dump modules 100, 200.

The plurality of load tray temporary storage units 330 are installed side by side at regular intervals in the tray pickup area of the tray storage table 312 so as to be parallel to the full tray transfer unit 320. The plurality of load tray temporary storage units 330 temporarily store the load tray set LT transferred from the multi tray picker unit 600 for smooth logistics of the load tray set LT.

The load tray set LT temporarily stored in the plurality of load tray temporary storage units 330 may be stored in the multi tray picker unit 600 according to a process progress state of the first and second dump modules 100 and 200. Picked up and transported to the loading standby conveyor 150 of each of the first and second dump modules 100, 200.

The plurality of full tray temporary storage units 340 are installed side by side to have a predetermined interval behind each of the plurality of load tray temporary storage units 330. That is, the plurality of full tray temporary storage units 340 are installed in a lattice form between a pair of full tray transfer units 320 and behind each of the plurality of load tray temporary storage units 330. The plurality of full tray temporary storage units 340 temporarily store the full tray set FT.

The full tray distribution unit 350 picks up the full tray set lifted by the full tray lifting unit 310, distributes the pooled trays to the plurality of full tray temporary storage units 340, and temporarily stores them. When the full tray set FT transferred to the tray pick-up area is picked up and transported by the multi-tray picker unit 600, the full tray distribution unit 350 may include the plurality of full tray temporary storage units ( The full tray set FT temporarily stored in any one of the 340 is picked up and transferred to the full tray transfer unit 310. To this end, the full tray distribution unit 350 is configured to include a full tray picker 352, an X-axis gantry 354, and a Y-axis gantry 356.

The full tray picker 352 picks up the full tray set raised by the full tray elevating unit 310 or the full tray set temporarily stored in the full tray temporary storage unit 340.

The X-axis gantry 354 supports the full tray picker 352 to be lifted and lowered in the Z-axis direction, and transports the full tray picker 352 in the X-axis direction.

The Y-axis gantry 356 transfers the full tray picker 352 in the Y-axis direction.

The tray sorting apparatus according to the embodiment of the present invention as described above automatically receives the stacked trays and automatically fills the good semiconductor packages in the empty pockets of the trays to make a full tray, and classifies the full trays by the number of packing units automatically. By including the dump modules 100 and 200 to be discharged, it is possible to improve the productivity of the process of loading the good quality semiconductor package in all the pockets of the tray and automatically sorts it by the number of packages.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: first dump module 110: load tray loading unit
115: tray transfer unit 120: vision unit
125: tray step moving unit 130: package picker unit
135: tray unloading unit 140: tray pass unit
150: loading waiting conveyor 155: unloading waiting conveyor
160: empty tray loading conveyor 165: tray loading conveyor
170: tray picker unit 175: empty tray waiting conveyor
180: tag tray standby conveyor 190: tray inversion unit
200: second dump module 300: buffer module
310: full tray lifting unit 320: full tray transfer unit
330: load tray temporary storage unit 340: full tray temporary storage unit
350: full tray distribution unit
400: first tray loading / unloading conveyor module
500: 2nd tray loading / unloading conveyor module
600: multi tray picker unit

Claims (15)

Detecting empty pockets in the trays so that the semiconductor packages are stacked in all the pockets provided in the trays, and stacking the semiconductor packages in the empty pockets to form a full tray, and the pull trays are packed in units A dump module for stacking and discharging
The dump module,
A load tray loading unit into which a load tray set having a plurality of load trays is loaded;
A load tray transfer unit for extracting and transferring one load tray from the load tray set;
A tray step moving unit on which a dummy tray loaded with a plurality of semiconductor packages is mounted;
A vision unit for detecting an empty pocket in a load tray carried by the load tray transfer unit;
A package picker unit which picks up a semiconductor package from the dummy tray and loads the semiconductor package in the empty pocket to make the full tray;
A tray unloading unit for stacking the pull trays in units of packing numbers; And
Tray sorting apparatus comprising a tray pass unit for discharging the full tray set stacked in the number of packaging units by the tray unloading unit. The method of claim 1,
The load tray loading unit,
A tray set stacker in which the load tray set is loaded and loaded;
A temporary support for temporarily supporting a load tray set loaded on the tray set stacking unit;
A tray loading elevating unit supporting the set of load trays temporarily supported by the temporary supporting unit, and lowering only the lowermost load tray from the supported load tray set to seat the load tray transfer unit; And
And a tray separating part for supporting the remaining load trays except for the lowermost load tray when the load tray set is supported by the tray loading lifter. 3. The method of claim 2,
The load tray transfer unit,
A pair of rail members installed to cross the vision unit to support the lowermost load tray lowered by the tray loading elevator;
A tray clamp member for clamping a load tray supported by the pair of rail members; And
And a clamp conveying member for conveying the rod tray clamped to the tray clamp member on the pair of rail members. The method of claim 1,
The dump module,
An empty tray stacking conveyor in which empty trays in which no semiconductor packages are stacked are stacked in all pockets;
A tag tray stacking conveyor on which tag trays stacked on top of the load tray set are stacked; And
A tray picker unit for picking up the empty tray from the tray step moving unit and stacking the empty tray on the empty tray stacking conveyor, or picking up the tag tray transported from the load tray transfer unit and stacking it on the tag tray stacking unit; Tray sorting apparatus, characterized in that configured. 5. The method of claim 4,
The dump module,
An empty tray waiting conveyor configured to temporarily receive a plurality of empty tray sets in which the empty trays are stacked from the empty tray stacking conveyor; And
And a tag tray standby conveyor configured to temporarily receive a tag tray set having a plurality of tag trays stacked from the tag tray stacking unit. The method of claim 5, wherein
A buffer module for temporarily storing the load tray set and temporarily storing the full tray set discharged from the tray path unit; And
And a multi-tray picker unit configured to transfer the load tray set and the full tray set while transferring between the dump module and the buffer module. The method according to claim 6,
The dump module,
A loading waiting conveyor for temporarily waiting for a set of load trays loaded from the outside or for temporarily setting a load tray set transferred from the multi tray picker unit; And
And an unloading waiting conveyor for temporarily waiting for the full tray set conveyed from the multi tray picker unit. The method of claim 7, wherein
And the multi tray picker unit picks up the load tray set from the loading waiting conveyor and loads the load tray set into the load tray loading unit. The method of claim 8,
And the multi tray picker unit further comprises a tag detection unit for detecting tray information in a tag tray stacked on top of the load tray set. 5. The method of claim 4,
The dump module,
A tray reversing unit installed between the empty tray stacking conveyor and the tray step moving unit to receive the empty tray from the tray picker unit to invert the empty tray, and then to drop the semiconductor package remaining in the empty tray. It is configured to include more
And the tray picker unit picks up the empty tray from the tray reversing unit and stacks the empty tray on the empty tray stacking conveyor. 11. The method of claim 10,
And the tray inversion unit detects the falling semiconductor package and generates an error signal according to a detection result. 5. The method of claim 4,
The tray picker unit stacks a plurality of tag trays on the tag tray stacking conveyor, and stacks a tag tray stacked on the top in a stacking direction different from that of other tag trays. The method according to claim 6,
The buffer module includes:
A full tray elevating unit installed on the tray storage table to raise and lower the full tray set supplied from the tray pass unit onto the tray storage table;
A full tray transfer unit which takes over the full tray set raised by the full tray lifting unit and transfers the full tray set to a tray pickup area of the tray storage table;
A plurality of load tray temporary storage units which are installed in a tray pickup area of the tray storage table so as to be parallel to the full tray transfer unit, and temporarily store the load tray set transferred from the multi tray picker unit;
A plurality of full tray temporary storage units installed side by side with a predetermined interval behind each of the plurality of load tray temporary storage units to temporarily store the full tray set; And
A pool for picking up the full tray set lifted by the full tray lifting unit and distributing it to the plurality of full tray temporary storage units for temporary storage and transferring the temporarily stored full tray set to the full tray transfer unit Tray sorting apparatus comprising a tray distribution unit. The method of claim 7, wherein
A load tray set supplied from the outside is loaded onto the loading waiting conveyor, or the full tray set transferred to the unloading waiting conveyor and the empty tray set and the tag tray waiting conveyor transferred to the empty tray waiting conveyor. Tray sorting apparatus further comprises a tray loading / unloading conveyor module for unloading the tag tray set to the outside. The method according to any one of claims 6 to 9, 13, and 14,
And the dump module is connected to both sides of the buffer module.

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