EP4544583A2 - Hebe- und halteeinrichtung zum behandeln von mindestens einem in einem trägerelement angeordneten substrat sowie verfahren mit einer solchen hebe- und halteeinrichtung - Google Patents
Hebe- und halteeinrichtung zum behandeln von mindestens einem in einem trägerelement angeordneten substrat sowie verfahren mit einer solchen hebe- und halteeinrichtungInfo
- Publication number
- EP4544583A2 EP4544583A2 EP23748313.6A EP23748313A EP4544583A2 EP 4544583 A2 EP4544583 A2 EP 4544583A2 EP 23748313 A EP23748313 A EP 23748313A EP 4544583 A2 EP4544583 A2 EP 4544583A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- lifting
- holding
- holding device
- substrates
- basin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/04—Apparatus for manufacture or treatment
- H10P72/0402—Apparatus for fluid treatment
- H10P72/0406—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H10P72/0411—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H10P72/0416—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing with the semiconductor substrates being dipped in baths or vessels
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/04—Apparatus for manufacture or treatment
- H10P72/0402—Apparatus for fluid treatment
- H10P72/0406—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
Definitions
- Lifting and holding device for treating at least one substrate arranged in a carrier element and method with such a lifting and holding device
- the invention relates to a lifting and holding device for treating at least one substrate, in particular wafer, arranged in a carrier element.
- the invention includes a method for treating substrates, in particular wafers, arranged in at least one carrier element in a basin filled with a liquid medium, the carrier element being arranged on a stand element within the basin.
- Treating substrates means those processes that are necessary for the production of such substrates, in particular wafers, and require processing in a basin filled with liquid medium. Processing processes include etching processes, rinsing and cleaning processes in the liquid medium, but also drying processes. The invention describes below in particular the drying process as a treatment process, but is not limited to this. Rather, this includes all treatment processes that are necessary for the production of substrates of the above type. State of the art
- US 4,722,752 discloses a method of the type mentioned in the first paragraph, in which silicon wafers are immersed for some time in a liquid containing hot (90 ° C) deionized water for cleaning. The silicon wafers are then slowly lifted out of the water (at a speed of around 5 cm/min). This speed is sufficiently low to ensure that the silicon wafers leave the bath in a practically dry state.
- Such residues can be very disturbing if the wafers are e.g. B. still have to be subjected to an etching treatment. They can locally delay or even prevent the etching treatment.
- a physical effect is used when drying substrates.
- the substrates are placed in a basin filled with liquid medium and the basin is then closed with a lid.
- An alcohol-nitrogen mixture is introduced into the resulting gas space above the liquid medium.
- Isopropanol IPA for short
- the alcohol produces a change in the surface tension medium adhering to the substrate. This change in surface tension causes the so-called Marangoni effect.
- the medium adhering to the surface is drawn down into the basin. The process takes place continuously, so that when the substrates move slowly (typically 1 to 2 mm/see) out of the medium, a completely dry surface is left behind.
- This residue-free drying ensures, on the one hand, a surface with little to no particles after drying.
- the oxidation of the substrate surface which typically occurs due to the oxygen contained in the medium when the medium slowly evaporates, does not occur.
- the dryer Due to the guides in the lid, the dryer is limited to drying one substrate size. In order to enable use with other substrate sizes, the dryer must be prepared for conversion. Changing between two substrate sizes requires conversion. The mechanical settings are complex. There is a risk of substrate breakage after conversion if the mechanical adjustment was not carried out properly. In addition, after each conversion, the dryer must be cleaned and tested for production again. In total, it takes around 8 hours to convert between two substrate sizes. Under these conditions, machines are equipped with two dryers so that the machine can be operated in parallel with two substrate sizes. This incurs costs and requires space.
- the carrier elements When using standard carriers, the carrier elements must be tilted slightly in the dryer. This is the only way to ensure that all substrates rest in the guides with the unused back side. Only then do all wafers have the same distance from each other. This is a prerequisite for the substrates to fit into the guides in the lid at all to be able to thread.
- the inclination of the support elements requires an additional mechanical device. Due to the inclination, all guide devices as well as holding and lifting devices must be adjusted to one another at exactly the right angle. This requires increased effort in the design, assembly and commissioning of the dryer. This makes converting between substrate sizes even more challenging and therefore even more time-consuming and cost-intensive.
- the support elements initially remain in the basin during drying and then have to be dried separately. This significantly increases the process time, which in turn increases costs.
- drying takes longer than that of the substrates due to the height of the carrier elements and the complex geometry of the carrier elements. This results in a longer process time.
- the construction of the lifting and holding device requires very deep basins because the substrates have to be lifted over the entire height of the support element. This has disadvantages when installing the basin in the housing (space required, top edge of the process basin positioned high up, which may increase the overall height of the system). It also increases the water consumption of the dryer and thus the ongoing operating costs.
- the mechanics of the lifting device of the dryer according to the prior art are complex.
- the synchronization of the lifting movements “lifting and lowering the support element” and “lifting and lowering the substrate” is carried out using a curved track. Changing to a different substrate size always requires a conversion of this mechanism. This presents another source of error during a conversion.
- Disadvantages of the prior art can also be seen in the drying process with lowering the level of the liquid medium in the basin.
- the substrates are not separated from the carrier element during drying. This means that there are contact points between the substrate and the carrier element in which large drops remain after the liquid level of the medium has been lowered. In order to dry these large drops, hot nitrogen is introduced into the process basin after the actual drying until the droplets have completely evaporated. This goes hand in hand with:
- Hot nitrogen may need to be introduced for 10 minutes or longer until all droplets have completely evaporated.
- the object of the invention is therefore to propose a device and a method through which at least one disadvantage of the prior art is avoided.
- An essential basic principle of the invention is that the surface of the substrates has no contact points with the carrier element during treatment, for example during drying. This is achieved by separating the substrates from the support element during drying.
- these dryers for carrier elements with substrates are integrated into fully automatic wet processing systems and are continuously loaded and unloaded accordingly.
- the dryer often proves to be a bottleneck with process times of around 10 minutes. Reducing drying times generally directly increases the throughput of the wet process system.
- the dryer can be used with different substrate sizes without modification. This means mixed operation with different substrate sizes is possible.
- the system can be operated with just one dryer.
- the device allows different substrate sizes to be treated in one tank without modification using the same method. For example, 6 inch and 8 inch substrates are conceivable.
- the carrier element provides for a fixing element formed by the first lifting and holding device to be formed in a stationary manner on the carrier element.
- a low-mass carrier is suitable for this, in which a second lifting and holding device lifts the substrates from the carrier element in the treatment process and positions them between the first and second lifting and holding devices in such a way that there is no contact with the actual carrier element of the substrate he follows.
- 1 AP shows a schematic representation of a first exemplary embodiment of a lifting and holding device as well as the representation of a first method process that can be carried out with the lifting and holding device
- 2 AT shows a schematic representation of a second exemplary embodiment of a lifting and holding device as well as the representation of a second process that can be carried out with the lifting and holding device;
- Fig. 3 A-L is a schematic representation of a third
- Embodiment of a lifting and holding device as well as the representation of a third process that can be carried out with the lifting and holding device;
- Fig. 4 A-G is a schematic representation of a fourth
- Embodiment of a lifting and holding device as well as the representation of a fourth process that can be carried out with the lifting and holding device;
- FIG. 5 A-E a schematic representation of a fifth exemplary embodiment of a lifting and holding device as well as the representation of a fifth process that can be carried out with the lifting and holding device;
- 6 A-K shows a schematic representation of a sixth exemplary embodiment of a lifting and holding device as well as the representation of a sixth method process that can be carried out with the lifting and holding device.
- the basin is U-shaped in cross section and is dimensioned in such a way that the support element T together with parts of the lifting and holding device the basin B fits and such that the depth is dimensioned such that the support element T can be completely covered with liquid medium in one position. It is also dimensioned so that the support element T can be freely positioned and removed within the basin. Stand elements within the basin B are provided for the correct positioning of the support element T.
- the basin B is filled with liquid medium F. In the drawings, the level within the tank with the liquid medium is shown with a dotted line.
- the basin B is open on one side, namely upwards, for removal of the support element T.
- a cover element (not shown in the drawings) is arranged on the basin B and thus the basin is closed.
- the cover element can be moved transversely to the basin B to release the support element T.
- the lifting and holding device consists of the actual lifting and Holding element for changing the positioning of the support element and/or for changing the positioning and/or holding of the substrates positioned in the support element T.
- the lever element is arranged in its rest position in the area of the base G of the basin B.
- the respective lifting arm extends from the basin B, even when the lid element is closed and is connected to a manipulator unit (not shown in the drawings), such that the lifting arm is movable and / or pivotable, such that the lifting and holding element is movable within the basin B and that the lifting and Holding element can be lifted out of the pool.
- a fixed connection within the pool is not provided in order to leave the wall of the pool intact.
- the lifting and holding device 10 in the first exemplary embodiment consists of two lifting and holding elements 11, 12, each of which is coupled to a lifting arm 14, 15.
- This lifting and holding device 10 is suitable for carrier elements T, so-called standard carriers (a simplified representation provides that the carrier element T is not shown in FIG. 1 AB).
- the respective substrates S are arranged sequentially and have several contact points and surfaces. The contact points and surfaces are created by receiving the substrates S in the respective comb-like recesses, which are arranged in defined areas within the carrier element T.
- the support element stands within the basin B on a stationary stand element 17.
- the basin B is completely filled with liquid medium F.
- the two lifting and holding elements 11, 12 can be moved independently of one another in and against the direction of an arrow 13, at least indirectly by the lifting arms 14, 15.
- the first lifting and holding element 11 consists of two fixing elements 11a, 11b, which in this exemplary embodiment are designed as a lifter and holder for the substrates S, and the lifting arm 14, the fixing elements 11a, 11b being on the side of the substrates S facing the base G outside the respective vertical axis of symmetry 16 of the substrates S and each have a line guide 11c. This means that the substrate S can rest with its end face on the first lifting and holding element 11 over a defined arc circle.
- the second lever element 12, which has the further lifting arm 15, is also initially out of engagement.
- the second lifting and holding element 12 can also be placed from the bottom G of the pool onto the respective substrates rest on or lie against, but in contrast to the first lifting and holding element 11 with a point-shaped receptacle which engages in the center of the axis (extension of the axis of symmetry 16) on the end face of the respective substrate S.
- the first lifting and holding element 11 is designed such that in a starting position it is not in engagement with the carrier element T and the substrates S (Fig. 1 C-D). This also applies to the second lifting and holding element 12.
- the first lifting and holding element 11 lifts the substrates S within the carrier element T in the direction of the arrow 18.
- the line guide 11c attacks the substrates S on their end face and brings them out of the carrier element T.
- the substrates S align vertically by moving from their tilted position (Fig. 1 C-D) to the now vertical position (Fig. 1 F) and thus moving in the direction of arrow 19 (Fig. 1 F). and are held by the line guide 11c of the lifting and holding element 11.
- the level of the liquid medium F within the container B is lowered so that the drying process can begin. This takes place wherever there is no contact with the carrier element T. However, there is still contact in the area of the line guide 11c of the first lifting and holding element 11, so that no drying is to be expected here if the liquid medium is lowered further beyond this location.
- the second lifting and holding element 12 is now moved with its lifting arm 15 in the direction of arrow 13 (FIG. IJ) until a point-shaped receptacle is reached on the end face of the respective substrate S.
- the second lifting and holding element 12 acts as a support element and guides the substrates S until they at least Part comes into contact with the support element T.
- the substrates tilt in the direction of the arrow 19 'and thus again in an inclined position, so that they can also rest on the carrier element T.
- the level of the liquid medium continues to fall and the first lifting and holding element 11 moves back to its starting position. This still happens within the liquid medium. This means that the previously touched end face of the substrate S is free again.
- the level of the liquid medium F can be lowered further, as in Figures MP.
- the second lifting and holding element 12 can be drained (in the opposite direction of arrow 13) in such a way that the substrates, as in the starting position, again completely, but now completely dry and without residues are arranged in the carrier element T.
- the container B can now be released by removing the cover element, not shown.
- the carrier element T can now be removed from the container with the substrate S.
- the lifting and holding device 110 in the second exemplary embodiment consists of two lifting and holding elements 111, 112, each of which is coupled to a lifting arm 114, 115.
- This lifting and holding device 110 is suitable for carrier elements T, so-called standard carriers (a simplified representation provides that the carrier element T is not shown in FIG. 2 AB).
- the respective substrates S are arranged sequentially in the carrier element T and have several contact points and surfaces. The contact points and surfaces are created by receiving the substrates S in the respective comb-like recesses, which are arranged in defined areas within the carrier element T. This means that the respective substrate S rests on the carrier element T at several points and / or surfaces and therefore cannot or only insufficiently be wetted by the liquid medium or that liquid medium remains exactly at these points during a drying process. As a rule, the substrates S are slightly tilted relative to their vertical.
- the support element T stands within the basin B on a stand element 117, which is not stationary in comparison to the first exemplary embodiment, with the lifting arm 120 connected to it.
- the basin B is completely filled with liquid medium F.
- the two lifting and holding elements 111, 112 can be moved independently of one another in and against the direction of an arrow 113, at least indirectly by the lifters 114, 115.
- the first lifting and holding element 111 consists of two fixing elements IIIla, 111b, which are designed as lifters and receivers of the substrates, and the lifting arm 114, with the fixing elements purple, 111b on the side of the substrates S facing the base G outside the respective vertical axis of symmetry 116 of the substrates S attack and each have a line guide 111 c. This means that the substrate S can rest with its end face on the first lifting and holding element 111 over a defined arc circle.
- the second lever element 112 which has the further lifter 115, is also initially out of engagement.
- the second lifting and holding element 112 can also rest on or rest on the respective substrates from the base G of the basin, but in contrast to the first lifting and holding element 111 with a point-shaped receptacle which is centered on the axis (extension of the axis of symmetry 116) on the end face of the respective substrate S attacks.
- the first lifting and holding element 111 is designed such that in a starting position it is not in engagement with the carrier element T and the substrates S (FIG. 2 CD). This also applies to the second lifting and holding element 112.
- the first lifting and holding element 111 lifts the substrates S within the carrier element T in the direction of the arrow 118.
- the line guide 111c attacks the substrates S on their end face and brings them out of the carrier element T.
- the substrates S align vertically by moving from their tilted position (FIG. 2 CD) into the now vertical position (FIG. 2F) and thus moving in the direction of arrow 119 (FIG. 2 F).
- the fill level of the liquid medium F within the container B is maintained and not lowered as in the first exemplary embodiment. This means that the substrates S have to be lifted outside the basin for a drying process.
- the first lifting and holding device 111 and thus by engaging the substrates in the area of the fixing elements purple, 111b ensure that the respective substrate S is lifted out of the liquid medium, as shown in FIG. 2G.
- the drying process can begin outside the liquid medium. This takes place wherever there is no contact with the carrier element T.
- the movement of the lifting arm 120 ensures that both the remaining lifting and holding devices 111, 112 also Carrier element T is lifted over and out of the container B, which is still completely filled. Complete lifting does not make technical sense, so lifting up to the line 111c is sufficient and effective. However, there is still contact in the area of the line guide 111c of the first lifting and holding element 111, so that no drying is to be expected here if the container B is moved further out beyond the fill level of the container B beyond this location.
- the second lifting and holding element 112 is now moved with its lever arm 115 in the direction of arrow 13 (FIGS. 2M-P) until a point-shaped receptacle is reached on the end face of the respective substrate S.
- the lifting and holding element 112 acts as a support element and preferably rests in a point-like manner only on the end face, i.e. on the circumference of the substrate S.
- the second lifting and holding element 112 guides the substrates S until they at least partially come into contact with the carrier element T.
- the substrates tilt in the direction of arrow 119 'and thus again in an inclined position, so that they can also rest on the carrier element T.
- the first lifting and holding element 111 moves back into its starting position.
- the non-stationary stand element 117 (together with the remaining lifting and holding elements 111, 112) is guided further in the direction of arrow 113 until the position reached in FIGS. 2Q and 2R is reached, namely the substrates S , which are arranged in the carrier element T and are held in position by the second lifting and holding device 112, are above the container and thus out of the liquid medium.
- the second lifting and holding element 112 can be lowered (in the opposite direction to arrow 13), such that the substrates are completely again, as in the starting position, but now are arranged in the carrier element T completely dry and without residue.
- the carrier element T In order to enable the carrier element T to be removed, it must be returned to the container in the version in which the lid element is to be opened transversely.
- the liquid medium is drained and with the draining, the stand element 117 for the carrier element T lowers back towards the bottom of the container B.
- the container B can now be released by removing the cover element, not shown in more detail.
- the carrier element T can now be removed from the container with the substrate S.
- the lifting and holding device 210 in the third exemplary embodiment consists of two lifting and holding elements 222, 212, each of which is coupled to a lifting arm 223, 215.
- This lifting and holding device 210 is suitable for carrier elements T, so-called low-mass carriers (a simplified representation provides that the carrier element T is not shown in FIGS. 3 AB).
- the respective substrates S are arranged sequentially and have several contact points and surfaces. The contact points and surfaces are created by receiving the substrates S in the respective comb-like recesses, which are arranged in defined areas within the carrier element T.
- the respective substrate S rests on the carrier element T at several points and/or surfaces and therefore cannot or only insufficiently be wetted by the liquid medium or that liquid medium remains at precisely these points during a drying process.
- the substrates S are slightly tilted relative to their vertical.
- the support element stands within the basin B on a stationary stand element 217.
- the basin B is completely filled with liquid medium F.
- the two lifting and holding elements 222, 212 are independent from each other in and against the direction of an arrow 213 or an arrow 224 at least indirectly by the lifting arms 214, 215.
- the first lifting and holding element 222 consists of two fixing elements 222a, 222b and a lifting arm 223, wherein in this exemplary embodiment the fixing elements 222a, 222b are arranged above the support element T arranged in the basin B and at a distance from it. In this exemplary embodiment, it only takes on the holding or fixing function. In the loading situation of the container B by the carrier element T, these are positioned in such a way that they are far apart so that positioning within the container B does not have a disruptive effect.
- the fixing elements 222a, 222b are preferably movable in and against the direction of the arrow 224 (FIG. 3 A).
- the second lifting and holding element 212 can rest on or rest on the respective substrates from the bottom G of the basin as a support element. It preferably has a point-shaped receptacle which engages the end face of the respective substrate S in the center of the axis (extension of the axis of symmetry 216).
- the first lifting and holding element 222 is designed such that in a starting position it does not engage with the carrier element T and the substrates S (Fig. 3 C-D). This also applies to the second lifting and holding element 212.
- the level of the liquid medium inside the container must be lowered. As shown in FIGS. 3 E and F, this must be lowered until the first lever element 222 is free of liquid medium.
- the first lifting and holding element 222 is now positioned via the lifting arm 223 in such a way that it can hold at least almost the respective substrates on their circumference.
- the fixing elements 222a or holder 222b are moved in the direction of arrow 224.
- the second lifting and holding element 212 is now moved with its lever arm 215 in the direction of arrow 213 (FIG. 3 GH) until a point-shaped receptacle is reached on the end face of the respective substrate S.
- the second lifting and holding element 212 guides the substrates S until they come to rest in and on the already positioned first lifting and holding element 222 or their fixing elements 222a, 222b.
- the first lifting and holding element 222 thus attacks the substrate in the dry area. There is no longer any further system on the flat side, so that complete drying of the respective substrates S can be achieved by further lowering the level of the liquid medium.
- the second lifting and holding element 212 can be lowered again.
- the substrates S are again completely taken up by the carrier element T (Fig. 3 I-L).
- the container B can now be released by removing the cover element, not shown. Beforehand, the fixing elements 222a 222b of the lifting and holding element 222 are moved back into the starting position so that there is no obstacle to removing the carrier element T from the container B. The carrier element T can now be removed from the container with the substrate S.
- the lifting and holding device 310 in the fourth exemplary embodiment consists of two lifting and holding elements 322, 312, each of which is coupled to a lifting arm 323, 315.
- This lifting and holding device 310 is suitable for carrier elements T, so-called low-mass carriers.
- the respective substrates S are arranged sequentially in the carrier element T and have several contact points and areas. The contact points and surfaces are created by receiving the substrates S in the respective comb-like recesses, which are arranged in defined areas within the carrier element T. This means that the respective substrate S rests on the carrier element T at several points and/or surfaces and therefore cannot or only insufficiently be wetted by the liquid medium or that liquid medium remains at precisely these points during a drying process. As a rule, the substrates S are slightly tilted relative to their vertical.
- the support element T stands within the basin B on a stand element 317, which is not stationary in comparison to the third exemplary embodiment, with the lifting arm 323 connected to it.
- the basin B is completely filled with liquid medium F.
- the two lifting and holding elements 322, 312 can be moved independently of one another in and against the direction of an arrow 324 or arrow 313, at least indirectly by the lifters 323, 315.
- the first lifting and holding element 322 consists of two fixing elements 322a, 322b and the lifting arm 323, the fixing elements 322a, 322b being arranged above the support element T arranged in the basin B.
- these fixing elements do not perform a lifting function, but only a holding and thus fixing function. In the loading situation of the container B by the carrier element T, these are positioned in such a way that they are far apart so that positioning within the container B does not have a disruptive effect.
- the fixing elements 322a, 322b are preferably movable in and against the direction of the arrow 324 (FIG. 4 A).
- the second lifting and holding element 312 can rest on or rest on the respective substrates from the bottom G of the basin.
- It has a supporting function and preferably engages the respective substrate on the front side and thus on the circumference of the substrate. It has a point-shaped receptacle that is in the middle of the axis (extension of the Axis of symmetry 316) acts on the end face of the respective substrate S. Furthermore, a movable and therefore not stationary stand element 317 is provided, which can be moved in the direction of arrow 313 via a lever arm 320.
- the first lifting and holding element 322 is designed such that in a starting position it does not engage with the carrier element T and the substrates S (Fig. 4 AB). This also applies to the second lifting and holding element 312.
- the level of the liquid medium is not initially lowered, but rather the carrier element T with the holding elements 322, 312 is raised above the level of the liquid medium of the container B, in which the stand element 317 is above the lever arm 320 is moved in the direction of arrow 313 (Fig. 4 C-F).
- the lifters 322a, 322b move it towards the respective substrates S in the direction of arrow 324.
- the second lifting and holding device 312 is also activated via the actuation of the lifting arm 315. This is designed in such a way that it rests at points on the outer circumference of the substrate S. When lifted in the direction of arrow 313, this pushes the respective substrate into the respective fixing elements 322a, 322b, the areas of which are now dry. The carrier element T is further lifted out of the container via the stand element 317 until the substrate is completely outside the liquid medium and is therefore dry.
- the exemplary embodiment of a lifting and holding device 410 shown in FIGS. 5 AB can be implemented in two different variants, namely in a first variant in which the carrier element T is lifted out of the basin B for the drying process and a further variant in which process-related the level of the liquid medium is lowered in each case.
- This is a combination of the previous exemplary embodiments.
- the embodiment shown as the fifth exemplary embodiment is suitable for processing, for example drying, different sizes of substrates, for example 6 inches or 8 inches in size, with a single device.
- the lifting and holding device 410 in the fifth exemplary embodiment has the identical functions as already shown in exemplary embodiments 1 and 2, but with the difference that the respective lifting and holding elements have two different fixing elements, each for the corresponding sizes are used. These fixing elements have the function of holding and lifting the substrates in such a way that the substrates are held in the respective carrier element solely by these fixing elements. This means that there is a lifting and holding device for the first substrate size and also another lifting and holding device adapted to the size.
- the first lifting and holding device for the smaller substrate size takes over functions for use with the larger substrate size.
- the basic principle of the fifth exemplary embodiment is shown in FIG. 5A.
- the lifting and holding device 410 consists of fixing elements 411.1, 412.1, 411.2. 412.2 coupled with one lifting arm each (not shown in these drawings).
- This lifting and holding device 410 is suitable for carrier elements T, so-called standard carriers (a simplified representation provides that the carrier element T is not shown in FIG. 4 A).
- the respective substrates S are arranged sequentially and have several contact points and surfaces. The contact points and surfaces are created by receiving the substrates S in the respective comb-like recesses, which are arranged in defined areas within the carrier element T. This means that the respective substrate S rests on the carrier element T at several points and/or surfaces and therefore cannot or only insufficiently be wetted by the liquid medium or that liquid medium remains at precisely these points during a drying process. As a rule, the substrates S are slightly tilted relative to their vertical.
- FIGS. 5 B-C shows the treatment of substrates S, held in a carrier element T.l.
- the substrates S have a first substrate size that is smaller than the substrate size shown in FIGS. 5D-E.
- the support element T.l stands within the basin B on a stationary stand element 417.1.
- the basin B is completely filled with liquid medium F.
- the two lifting and holding elements 411.1, 412.1 can be moved independently of one another in and against the direction of an arrow 413.
- the first lifting and holding element 411.1 suitable for substrates with a first defined substrate size, consists of two fixing elements 411.1a, 411.1b, wherein the fixing elements 411.1a, 411.1b engage on the side of the substrates S facing the base G outside the respective vertical axis of symmetry 416.1 of the substrates S. These serve, on the one hand, to hold the substrates in the area of their outer circumference and, on the other hand, to lift them in the direction of arrow 413.
- the fixing elements 411.1a, 411.1b each have a line guide 411.1c for the reception. This means that the substrate S arranged in the carrier element Tl can rest with its end face on the first lifting and holding element 411.1 over a defined arc circle.
- the second lever element 412.1 is also initially out of engagement.
- the second lifting and holding element 412.1 can also rest on or rest on the respective substrates from the base G of the basin, but in contrast to the first lifting and holding element 411.1 with a point-shaped receptacle which is centered on the axis (extension of the axis of symmetry 416.1) on the end face of the respective substrate S (Fig. 5 BC).
- the first lifting and holding element 411.1 is designed such that in a starting position it does not engage with the carrier element T and the substrates S. This also applies to the second lifting and holding element 412.1.
- the stand element 417.1 in such a way that it is identical to the first lifting and holding element 411.2, which is suitable for the second size and is larger than the first size.
- the stand element 417.1 is formed by the first lifting and holding element 411.2 for the second substrate size. It can be provided that this lifting and holding element 411.2 and thus the stand element 417.1 remains stationary for the working process for this first substrate size (comparable to the first exemplary embodiment) or is movable in the direction of arrow 413 and its opposite direction and is therefore comparable to the second exemplary embodiment .
- Variant 2 is provided that this lifting and holding element 411.2 and thus the stand element 417.1 remains stationary for the working process for this first substrate size (comparable to the first exemplary embodiment) or is movable in the direction of arrow 413 and its opposite direction and is therefore comparable to the second exemplary embodiment .
- the lifting and holding device 410 includes a second variant which is intended to process substrates of a second size that are larger than the first size.
- the substrates S are arranged in a larger carrier element T.2.
- the first lifting and holding element 411.2 consists of two fixing elements 411.2a, 411.2b, whereby the fixing elements 411.2a, 411.2b engage on the side of the substrate S facing the ground G outside the respective vertical axis of symmetry 416.2 of the substrate S and each have one Line guide 411.2c. This means that the substrate S can rest with its end face on the first lifting and holding element 411.2 over a defined arc circle. In addition, these have the function that they can lift the substrates S.
- the second lever element 412.2 is also initially out of engagement.
- the second lifting and holding element 412.2 can also rest on or rest on the respective substrates from the base G of the basin, but in contrast to the first lifting and holding element 411.2 with a point-shaped receptacle which is in the center of the axis (extension of the axis of symmetry 416.2, whereby the axes of symmetry from the substrate of the first size and from that of the second size are different) acts on the end face of the respective substrate S (Fig. 5 B-C).
- the first lifting and holding element 411.2 is designed such that in an initial position it does not engage with the carrier element T.2 and the substrates S. This also applies to the second lifting and holding element 412.2.
- the stand element 417.2 in such a way that the fixing elements 411.2a and 411.2b attack from the base G into the carrier element T.2 and thus the substrates and thus lift.
- the respective stand element 417.2 is preferably arranged next to the lifting and holding element 411.2.
- the stand elements can also be at least partially integrated into the lifting and holding elements 411.2 at least on one side.
- the lifting and holding elements 411.1 for the first size remain out of function. It is also planned to design a stand element 417.2 in such a way that it can lift the support element T.2 out of the pool.
- the functions of the lifting and holding elements 411.2 and 412.2 remain unaffected.
- the further exemplary embodiment relates to a further development of the first lifting and holding device 510. In contrast to the previous versions, this is arranged on or in the area of the carrier element T.
- the lifting and holding device 510 in the sixth exemplary embodiment consists of two lifting and holding elements 511, 512, with the second lifting and holding element 512 being coupled to a lifting arm 515.
- This lifting and holding device 510 is suitable for carrier elements T, so-called low-mass carriers (a simplified representation provides that the carrier element T is not shown in FIG. 5 BC).
- the respective substrates S are arranged sequentially and have several contact points and surfaces. The contact points and surfaces are created by receiving the substrates S in the respective comb-like recesses, which are arranged in defined areas within the carrier element T.
- the respective substrate S rests on the carrier element T at several points and/or surfaces and therefore cannot or only insufficiently be wetted by the liquid medium or that liquid medium remains at precisely these points during a drying process.
- the substrates S are slightly tilted relative to their vertical.
- the support element stands within the basin B on a stationary stand element 517.
- the variant shown in FIGS. 6B-C shows the alternative to a stationary design. So that the stand element 517 can be moved in and against the direction of the arrow, a further lifting arm 520 is provided (comparable to the second exemplary embodiment). This version is used if the support element T is to be lifted out of the basin for the drying process.
- this version of the movable stand element 517 is coupled with the fact that the second lifting and holding device 512 can also be lifted at the same time.
- the further description is limited to the version with a stationary stand element.
- the invention is not limited to this. Rather, the invention also includes a non-stationary stand element so that the support element T can be raised and preferably lifted out of the pool.
- the basin B is completely filled with liquid medium F.
- the two lifting and holding elements 511, 512 are independent of one another.
- the first lifting and holding element 511 is connected in a stationary manner to the carrier element T as a fixing element 511a, 511b. Its function is to partially grip and fix the respective substrate over its outer circumference. It is designed in such a way that in the starting position it is out of engagement with the respective substrate S.
- the second lever element 512 which is coupled to a holding arm 515, is also initially out of engagement.
- the second lifting and holding element 512 can also rest on or rest on the respective substrates from the base G of the basin, but in contrast to the first lifting and holding element 511 with a point-shaped receptacle which is in the center of the axis (extension of the Axis of symmetry 516) attacks the end face of the respective substrate S (FIG. 6 BE).
- the level of the liquid medium F within the container B is lowered until the first lifting and holding element 511 or its fixing elements 511a, 511b are dry and therefore not wetted with the liquid medium are
- the second lifting and holding element 512 is now moved with its lever arm 515 in the direction of arrow 513 (Fig. 6 F-G) until a point-shaped recording is achieved on the end face of the respective substrate S.
- the second lifting and holding element 12 acts as a support element and guides the substrates S until they rest at least on the fixing elements 511a, 511b, which are already dry, and are picked up by them. In this state, the respective substrate is held in the dry area by the fixing elements 511a, 511b and still in the wet area by the second lifting and holding element 512, which engages on the outer circumference of the respective substrate S.
- the level of the liquid medium continues to decrease until the second lifting and holding element 512 is also in the dry area (Fig. 6 H-I).
- the entire substrate is now dry and, after the level of the liquid medium has been further lowered, can be transferred back into the carrier element T, in which the second lifting and holding device 512 moves counter to the arrow direction 513.
- the respective substrate S is released from the fixing device 511a, 511b and is transferred back into the carrier element T supported by the second lifting and holding device 512.
- the now dry substrates S and that dry support element T can be removed from the dry basin B.
Landscapes
- Cleaning Or Drying Semiconductors (AREA)
- Weting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022115969 | 2022-06-27 | ||
| PCT/IB2023/056633 WO2023199296A2 (de) | 2022-06-27 | 2023-06-27 | Hebe- und halteeinrichtung zum behandeln von mindestens einem in einem trägerelement angeordneten substrat sowie verfahren mit einer solchen hebe- und halteeinrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4544583A2 true EP4544583A2 (de) | 2025-04-30 |
Family
ID=87517252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23748313.6A Withdrawn EP4544583A2 (de) | 2022-06-27 | 2023-06-27 | Hebe- und halteeinrichtung zum behandeln von mindestens einem in einem trägerelement angeordneten substrat sowie verfahren mit einer solchen hebe- und halteeinrichtung |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4544583A2 (de) |
| WO (1) | WO2023199296A2 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4722752A (en) | 1986-06-16 | 1988-02-02 | Robert F. Orr | Apparatus and method for rinsing and drying silicon wafers |
| US5884640A (en) * | 1997-08-07 | 1999-03-23 | Applied Materials, Inc. | Method and apparatus for drying substrates |
| JP3753000B2 (ja) * | 2001-01-31 | 2006-03-08 | 日立プラント建設株式会社 | 基板洗浄装置 |
| KR20050015411A (ko) * | 2003-08-05 | 2005-02-21 | 삼성전자주식회사 | 세정 장치 및 이를 이용한 세정 방법 |
| KR101169154B1 (ko) * | 2010-06-30 | 2012-07-30 | 주식회사 엘지실트론 | 웨이퍼 지지장치 |
-
2023
- 2023-06-27 EP EP23748313.6A patent/EP4544583A2/de not_active Withdrawn
- 2023-06-27 WO PCT/IB2023/056633 patent/WO2023199296A2/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023199296A3 (de) | 2023-11-30 |
| WO2023199296A2 (de) | 2023-10-19 |
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