WO2016198634A1 - Vorrichtung mit folie zum elektrostatischen koppeln eines substrats mit einem substratträger - Google Patents
Vorrichtung mit folie zum elektrostatischen koppeln eines substrats mit einem substratträger Download PDFInfo
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- WO2016198634A1 WO2016198634A1 PCT/EP2016/063347 EP2016063347W WO2016198634A1 WO 2016198634 A1 WO2016198634 A1 WO 2016198634A1 EP 2016063347 W EP2016063347 W EP 2016063347W WO 2016198634 A1 WO2016198634 A1 WO 2016198634A1
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- electrode structure
- substrate
- carrier
- layer
- electrode
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Classifications
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- 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
- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/72—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using electrostatic chucks
- H10P72/722—Details of electrostatic chucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N13/00—Clutches or holding devices using electrostatic attraction, e.g. using Johnson-Rahbek effect
-
- 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
- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/72—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using electrostatic chucks
-
- 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
- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/74—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using temporarily an auxiliary support
Definitions
- Very thin and / or fragile semiconductor wafers e.g. Wafers of Si, GaAs, InP, GaN, etc., or thin glass or ceramic substrates, e.g. made of SiC, are widely used for
- wafers typically refers to semiconductor substrates that have a circular shape of defined diameter, eg, 100 mm, 150 mm, 200 mm, 300 mm, 450 mm.
- these wafers must be very thin, z. B. 10 pm to 100 pm, while still undergoing processing steps at the front or back, z.
- metal deposition spin-coating
- lithography UV exposure
- wet chemical processes for structuring dry chemical processes
- plasma process layer deposition or annealing steps
- hotplates hotplates
- the handling is associated with a high risk of breakage
- Breakage of a wafer in a semiconductor factory may entail a loss of several thousand euros
- Adhesive-based support techniques are easy to handle, but the polymers are often expensive, spin-coating processes have a large material loss, large amounts of hazardous waste waste accumulate and the adhesives often have low temperature stability. These adhesive-based techniques also require special devices and methods for bonding (vacuum bonding chamber, temperature) wafer and carrier. In addition, the detachment of the polymers is often difficult and the substrates must be laboriously freed from polymer residues and cleaned. In the final step of cleaning the process substrate, however, the stabilizing carrier substrate mentioned above is no longer present, which is why the risk of breakage of the process substrate increases again.
- a known alternative carrier technique uses electrostatic holding forces between a rigid carrier substrate with rechargeable electrode structures and the fragile wafer to be processed. By discharging the electrodes wafer and carrier can be separated again. There are no polymers used, there is no contamination with polymer residues and the holding forces act even at high temperatures such. B. at over 400 ° C.
- US 5,691,876 A discloses a combination of said bonding techniques.
- An electrode is embedded between two or more layers of a polymer dielectric. This arrangement is mounted on top of the wafer chuck.
- the polymer layers are thermoplastic and are melted using pressure and temperature on the wafer chuck on the one hand and on the wafer on the other hand. The arrangement is thus permanently connected to the wafer chuck and at least temporarily to the wafer.
- EP 1305 821 B1 discloses such a mobile carrier.
- This carrier is produced on rigid substrates.
- the production of the electrode structures is relatively easy to carry out here.
- the contact hole through the wafer (TSV through Silicon via) have a very good electrical insulation.
- process steps for metal structuring are to be carried out on both sides of the wafer. It is thus an object of the present invention to improve existing devices for electrostatically coupling substrates and substrate carriers.
- the device according to the invention forms a capacitor arrangement between the electrode structure connected to the carrier film and the substrate (wafer) or the substrate carrier (wafer holder). After charging via a voltage source, it can be disconnected or removed again.
- the capacitance of the capacitor arrangement of electrode structure and an overlying or underlying substrate with a conductive layer keeps the charge state and thus also the electrostatic holding force for a longer period of time.
- the electric field between the electrode surfaces also causes permanent polarization effects in the intervening insulating layers, such. B. in the flexible plastic carrier film and / or the cover layer. So there is a transport tables, mobile carrier system without cable connections.
- the size and shape of the carrier film can also be chosen very freely.
- the production on large foil sheets, so-called sheets, in the multiple use or in a continuous process is possible.
- the production process is thus cost-effective.
- An electrostatic structure on films is also less expensive to manufacture than the previously known rigid E-carriers, which are manufactured on the basis of semiconductor technology in a semiconductor line. Carrier films can also be easily replaced if damage has occurred that would affect the electrostatic functionality.
- the carrier film In a coupled state, the carrier film is arranged at least in sections between the wafer and the wafer carrier. In this case, the carrier film may be larger than the laid wafer. In wafer processing, there is thus the advantage that an electrostatically activatable surface can be just as large or larger than a wafer.
- the holding force can act to the outermost wafer edge. This is important if the wafer is slightly bulged due to internal stresses at the edge. Furthermore, vertical plated-through holes through the electrically insulating film are easy to implement, for example by drilling a laser hole and metal sputtering. In this case, no lateral, electrical insulation of the via holes is required.
- the device according to the invention can exert holding forces "upwards”, ie on the wafer side, and "downwards", ie on the side of the carrier. The provision of a similar property on a silicon wafer, however, can be realized only with increased effort.
- the device according to the invention can also be used simply as an "interposer" between a wafer with a smaller diameter and a carrier with a larger diameter, which is advantageous if, for example, 4 "wafers are to be reversibly mounted on 6" or 8 "carriers.
- the device according to the invention has the advantage that wafer processing equipment whose handling technology is actually designed only for large substrates can also be used for smaller substrates or for a multiplicity of smaller substrates. For example, several 2 "SiC wafers can be reversibly placed on an 8" carrier wafer via a device according to the invention with a correspondingly configured electrode geometry in order to be able to process them in a conventional wafer processing system.
- the carrier foil and the electrode structure applied thereon may together have a thickness of less than 200 ⁇ m. In a further embodiment, the support film and the electrode structure applied thereon may together have a thickness of less than 100 pm or less than 70 pm. This small layer thickness allows easy handling and a space-saving arrangement, when the device between wafer and wafer carrier is arranged.
- the carrier film may include at least one of polyimide, polyetheretherketone (PEEK), polyethylene naphthalate (PEN), liquid crystalline LCP polymer, or polyethylene terephthalate (PET). In other words, the film can consist of at least one of these plastics.
- Polyimide is particularly well suited as a carrier film, since this plastic has a temperature resistance of over 350 ° C, up to about 400 ° C. In some steps of the wafer processing, in which such high temperatures may occur, the device according to the invention thus remains usable without significant functional and / or structural losses.
- polyimide films are simply in the thickness range of Weni ⁇ gen micrometers to a few hundred micrometers to produce and readily available.
- the electrode structure may be a metal, a conductive polymer, eg poly-3,4-ethylenedioxythiophene (PEDOT or PEDT), a doped semiconductor layer, such as poly-Siüzium. or a transparent, inorganic conductor, such as indium-tin oxide (ITO).
- PEDOT or PEDT poly-3,4-ethylenedioxythiophene
- ITO indium-tin oxide
- the metal of the electrode structure may be provided as a coating or as a foil, in particular as a stamped metal foil.
- a metal coating is advantageously formed as a thin, produced in the sputtering process or by vapor deposition, ⁇ coating.
- the coating can also be provided by applying a conductive ink or by applying nanoparticles.
- the metal may be formed as a metal foil, with stamped metal foils being easy to produce and readily available.
- the device has at least one further metal-containing layer, wherein the metal is provided as a coating or as a film.
- the metal is provided as a coating or as a film.
- multiple capacitor structures can be provided.
- such a layer composite can increase the stability of the device.
- ther ⁇ mix expansion of the device by suitable choice of material can be well controlled, for example, a metal is chosen in the ⁇ that a similar temperature-dependent coefficient of expansion as the material of the carrier film has.
- a suitable material for the electrodes in the structure and / or in the further layer in front seen ⁇ metal would be, for example, copper.
- a polyimide carrier film results in a good controllability of the thermal expansion of Vorrich ⁇ tion, since copper and polyimide have a similar thermal expansion. Voltages within the device can thus be kept low.
- a symmetrical structure, in particular along an axis extending between the substrate and the substrate carrier is desirable since this can largely avoid distortion of the device during heating.
- the covering layer may be an insulating layer which is mounted on the electrode structure or on the side of the substrate facing the electrode structure. Alternatively, however, the insulating covering layer can also be applied to the side of the substrate carrier facing the electrode structure. The insulating layer prevents a direct coming into contact of the electrode structure with the substrate or with the substrate carrier.
- the cover layer may be formed as a plastic film.
- this cover layer has the same material and / or about the same thickness as the plastic carrier film.
- the cost of the process for producing the device according to the invention can be kept low.
- the charge in the device can be distributed well and evenly.
- the electrode structure can be divided into at least two electrically contactable electrode regions, the electrode regions being arranged approximately in a same plane.
- a bipolar configuration can be provided.
- the two electrode regions of the electrode structure are each connected to one pole of the voltage source. Since the two electrode structures lie in one plane, the parts of this plane existing between the two electrode structures can remain in a simple manner as a dielectric.
- An electrode structure of the device may be arranged in a first plane, wherein the device may further comprise at least one second electrically contactable electrode structure which is arranged in a second plane different from the first plane.
- a unipolar configuration can be provided in multiple layers.
- the device can have at least two electrode structures lying one above the other, each of which can be contacted individually.
- the first electrode structure can be used to fix an applied substrate (eg fragile wafer) and the second electrode structure can be used to activate a carrier-side holding force to a metal plate or to a carrier with a conductive layer.
- an applied substrate eg fragile wafer
- the second electrode structure can be divided into at least two electrically contactable electrode regions, wherein the electrode regions are arranged approximately in a same plane.
- two levels or layers can be provided, in each of which an electrode structure is present.
- a first electrode structure may be provided in a first plane, while a second electrode structure is arranged in a second plane.
- both the first and the second electrode structure can be subdivided into two or more electrode regions.
- a multilayer or multi-layered bipolar electrode configuration is created.
- two übereinan ⁇ of the electrode structures located and separated by an insulating layer, for example metal surfaces is provided within the device, wherein one or both of the metal layers into two or more electrode areas are divided.
- the holding forces on the substrate side and the carrier side can also be switched on and off individually.
- the advantage of bipolar fixation is generally that no further contacting and charging of the applied substrate or of the substrate carrier is required.
- a bipolar electrode structure may be provided on the side of the device facing the substrate, and a unipolar electrode structure may be provided on the side of the device facing the substrate carrier.
- the two electrode structures are vertical, ie, isolated from each other along an axis extending between the substrate and the substrate carrier.
- a carrier-side unipolar electrode structure can be used as a "counterelectrode" for a conventional electrostatic wafer chuck that is permanently installed in a system.
- the carrier-side unipolar electrode structure can also be used as an activatable electrode with its own contact area for unipolar charging in
- This arrangement of the device can also be provided the other way round, with a unipolar electrode structure on the substrate side and a bipolar electrode structure on the carrier side.
- an insulating layer it can be advantageous for an insulating layer to have a greater thickness or a greater absorbency between the electrode structures than the thickness of the carrier foil and / or the thickness of the covering layer.
- the main part of the electric fields ie the main part of the activatable holding force
- will act upwards and downwards ie in the direction of the applied substrate or in the direction of the substrate carrier arranged therebelow, instead of acting between the double-layered electrode structures of the device.
- the fields between the electrode structures of a multi-layered or multi-layered device can not contribute to the holding force in the direction of the substrate or in the direction of the substrate carrier.
- the electrode structure may have a contacting section which protrudes at least in sections over the outer circumference of the substrate and / or the substrate carrier, so that the contacting section is accessible from the outside when the device is arranged between the substrate and the substrate carrier.
- contacts of a voltage source can be connected to the contacting section or connected to the device in order to charge the device.
- these Kunststoffssensabête can be geometrically very variable, ie, size, depth, width are arbitrary, with the side, ie over the outer circumference of the substrate or the substrate support projecting contact electrodes are easily feasible.
- the free shaping thus allows an embodiment of contacting sections for charging, which lies outside the actual holding surfaces.
- the contacting portions may protrude, for example, as "ears" at one or more locations over the edge of process wafers or carriers. These protruding contact surfaces allow for very simple charging of the electrostatic structure.Other advantage results from the laterally protruding contacting portions in that they This is an improvement over hitherto known mobile e-carrier systems
- the electrode structure has a contacting section which is designed in such a way that the electrode structure is electrically insulated from the outside when the cont Activation section is contacted. This offers advantages, for example during the aforementioned reloading during processing.
- the reloading can take place, for example, in a plasma chamber, on a hotplate or in an oven. Reloading is particularly necessary when at high temperatures, the leakage currents occur to the charge state quickly reduce to zero.
- the contacting sections must at least temporarily be connected to a voltage source. This can be done, for example, with clamping contacts that cover the Kunststoff Industriessab- sections completely or cover such that conductive connections to the environment are electrically isolated. This is important so that even in a plasma chamber in which an electrically conductive, ionized gas is present, no leakage or short circuit between the electrodes or between the surrounding medium and the electrodes can occur.
- liquid environments such as water, solvent or chemical baths.
- the electrode electrode structure can have a contacting section, wherein the covering push has a cutout in the region of the contacting section, so that the contacting section can be contacted through the cutout.
- the device can have a contact layer having a conductive or a semiconductive material, which is arranged on the side of the cover layer facing away from the electrode electrode structure and covers the recess provided in the cover layer at least in sections, wherein the contact layer is arranged at a distance from the electrode electrode structure in the region of the recess ,
- the contact layer preferably has on both sides a conductive or semiconducting material.
- the contact layer can be brought into contact with the electrode structure in the region of the recess when a force is exerted on the contact layer and / or on the electrode electrode structure.
- a pin or contact pin connected to a voltage source can be pressed onto the contact layer, which then moves in the direction of the electrode structure.
- the contact layer comes into contact with the electrode structure, the electrode structure is charged.
- the contact layer returns to the original starting position, in which it is spaced from the Eiektroden Modell. The contact layer and the electrode structure are thus no longer in contact with each other.
- the charge previously applied to the electrode structure can thus no longer be removed by the removal of the voltage source Flow environment such as air, water, plasma, etching media, solvents and the like. In addition, this provides additional protection against inadvertent discharge for the personnel handling the device.
- the contact layer may include a contact portion spaced radially from the recess and / or offset along a circumference of the device by an angle ⁇ from the recess. This provides an additional protection against unintentional discharge of the device when handling. This may be advantageous in that respect, e.g. because accidental discharge when "touching" the electrostatic device is avoided, since it is unlikely that a person, while gripping the device, would press the contact section and at the same time the contact layer so that a discharge could occur.
- Very thin semiconductor substrates with a thickness of e.g. Below 100 ⁇ have a sharp-edged and also very vulnerable wafer edge.
- edge-trim or edge-grinding processes are used.
- the wafer diameter is reduced by material removal at the wafer edge by about 0.5 to 5 mm.
- the advantage is that it also removes all thin, fragile areas at the edge of the wafer. This is of particular interest in bonded wafer pairs, so-called wafer stacks.
- wafers of non-standard diameter can not be handled with the usual handling tools (wafer hordes, etc.). So it would be good to put a reversible carrier under these "smaller" wafers.
- the substrate carrier can therefore have a recess in which the carrier foil, the egg-shaped structure, the covering layer and the substrate can be arranged at least in sections.
- the substrate carrier may have a recess in which e.g. a process wafer with a reduced diameter can be deposited indoors.
- the formation of a recess creates a laterally raised edge. This raised edge of the substrate carrier provides additional protection against lateral displacement of the parts located within the recess.
- the device is placed between the process wafer and carrier wafer in the recess and holds after the electrostatic charging the substrate stack together.
- a wall which runs laterally along the recess to have an opening which is formed around a contacting section of the electrode structure. receive such that it extends beyond the circumference of the substrate carrier out.
- the protruding contacting portions make it possible for a device to continue to be readily contactable, even if the device itself should be recessed in a recess of the substrate carrier.
- the device may have a recess that extends completely through the device.
- Such recesses or open areas are also referred to as windows and can be easily introduced into the carrier film. In this way, devices can be realized in which an applied substrate, for. B. also in the form of a film, can be processed from both sides, for. In a wet chemical process.
- the wet chemical can be applied to the substrate from above as well as from below, with the chemical in the latter case reaching the substrate through the recess (window) provided in the device.
- the device may therefore be advantageous to provide the device with a recess, ie as a kind of frame structure having open areas.
- the electrostatic holding force is in this case mediated via the remaining electrode structures in the resulting frame or webs.
- a substrate stack comprising a substrate, a substrate carrier and a device arranged between the substrate and the substrate carrier according to one of the preceding features.
- a substrate stack has at least the above-mentioned advantages which can be achieved with the device according to the invention.
- Another aspect of the invention relates to the use of a device according to any one of the preceding features.
- the use includes arranging the device between the substrate and the substrate carrier, and at least temporarily applying a DC voltage between the electrode structure and the substrate and / or between the electrode structure and the substrate carrier.
- a unipolar structure with the advantages mentioned above, called.
- the use includes arranging the device between the substrate and the substrate carrier, and at least temporarily applying a DC voltage between a first and a second electrode structure or between a first and a second electrode region, if the device comprises at least two electrode structures and / or at least has an electrode structure with two electrode regions.
- a bipolar structure with the advantages mentioned above, is called.
- FIG. 1A is a side sectional view of a device according to the invention according to a
- 1 B is a side sectional view of a device according to the invention according to another embodiment
- FIG. 2A is a side sectional view of a device according to the invention according to a
- 2B is a side sectional view of a device according to the invention according to a
- FIG. 2C is a perspective view of a device according to the invention with an electrode structure within a plane
- 2E is a side sectional view of a device according to the invention according to a
- 2F is a side sectional view of a device according to the invention according to a
- FIG. 3 is a perspective view of a device according to the invention according to another embodiment
- 5 shows a perspective view of a device according to the invention arranged between a substrate and a substrate carrier provided with a recess according to a further exemplary embodiment
- 6 is a perspective view of a recesses having inventive device according to another,sbeispieis
- FIG. 7A is a detail of a side sectional view of a device according to the invention according to an embodiment with a recess provided in the cover layer,
- FIG. 7B is a detail of a side sectional view of a device according to the invention according to another embodiment with a contact layer
- FIG. 7D is a detail of a side sectional view of a device according to the invention according to another embodiment
- FIG. 7E is a plan view of the embodiment of FIG. 7D; FIG.
- FIG. 7F is a plan view of another embodiment of a device according to the invention.
- FIG. 7G is a plan view of another embodiment of a device according to the invention.
- FIG. 8A is a diagram illustrating the principle of unipolar coupling according to the prior art
- FIG. 8B is a diagram illustrating the principle of bipolar coupling according to FIG.
- FIG. 1A shows a side sectional view of a device 100 according to the invention for the electrostatic coupling of a substrate 101 to a substrate carrier 102.
- the device 100 has a flexible plastic carrier film 103.
- an electrode structure 104 is applied on one side.
- the device 100 On the side of the electrode structure 104 facing away from the carrier film 103, the device 100 has a covering layer 105.
- the cover layer 105 can be brought into contact with the electrode structure 104.
- the cover layer 105 is between the electrode structure 104 and the substrate 101 is provided.
- the cover layer 105 may, as shown in FIG. 1A, be coupled to the side 107 of the substrate 101 facing the substrate carrier 102.
- the device 100 according to the invention is designed such that it is arranged in an electrostatically coupled state at least in sections between the substrate 101 and the substrate carrier 102. In an uncoupled state, the inventive device 100 is reuseably removable from the substrate carrier 102.
- the electrode structure 104 has a diameter di, the substrate 101 has a diameter dz, and the substrate carrier 102 has a diameter d3.
- the diameter di of the electrode structure 104 is greater than the diameter d2 of the substrate.
- the diameter di of the electrode structure 104 may advantageously also be greater than the diameter d 3 of the substrate carrier 102.
- FIG. 1B shows a lateral sectional view of a further embodiment of the device 100 according to the invention.
- the difference from the exemplary embodiment shown in FIG. 1A is, inter alia, that the diameter di of the electrode structure 104 is smaller than the diameter d .
- the embodiment shown in FIG. 1B also differs from the embodiment depicted in FIG. 1A in that the covering layer 105 is coupled to the side 106 of the electrode structure 104 facing away from the carrier film 103.
- the device 100 thus forms a kind of layer structure or layer stack comprising the carrier film 103, the cover layer 105 and the electrode structure 104 arranged therebetween.
- the carrier film 103 comes into contact with the substrate carrier 102, as shown in FIG. 1B, and the cover layer 105 comes along the substrate 101 in contact.
- the layer stack 103, 104, 105 can also be positioned reversely between the substrate 101 and the substrate carrier 102 so that the flexible plastic carrier film 103 comes into contact with the substrate 101 and the covering layer 105 comes into contact with the substrate carrier 102.
- the plastic carrier film 103 is a flexible plastic film which serves as a carrier or substrate for the electrode structure 104.
- the plastic film 103 is flexible, ie it is elastically deformable without much effort.
- the carrier film 103, together with the electrode structure 104 applied thereto, has a thickness DTE of less than 200 ⁇ m.
- the carrier film 103 together with the electrode structure 104 applied thereon has a thickness D T E of less than 100 ⁇ m, or even less than 70 ⁇ m.
- the carrier film 103 is a polyimide film, ie it has a proportion of polyimide of more than 50%.
- the carrier film 103 may also have fractions of more than 50% of polyetheretherketone, polyethylene naphthalate, or on liquid-crystalline LCP polymer.
- the electrode structure 104 is formed as a stamped metal foil.
- the Metallfolio 104 has a share of more than 50% of copper.
- the cover layer 105 is a plastic film having insulating properties.
- the cover layer 105 is made of the same material as the carrier film 103.
- the cover layer 105 may also have approximately the same thickness as the plastic carrier film 103.
- an electrical potential is generated between the device 100 and the substrate 101 or the substrate carrier 102.
- FIG. 8A shows an unipolar fixation concept known from the prior art for explanation purposes.
- An apparatus 800 includes a substrate 801 and a substrate carrier 802. Between the substrate 801 and the substrate carrier 802 is a dielectric 804, which may also be air.
- a DC voltage source 803 is temporarily or temporarily connected to the device 800, for example for charging or discharging the capacitor arrangement shown, one of the two poles of the voltage source 803 to the substrate 801 and the other of the two poles of the voltage source 803 to the sub - Stratlie 802 is connected.
- FIG. 8B shows an explanation of a prior art bipolar fixation concept.
- the substrate carrier 802 has two contactable regions 802A, 802B.
- a DC voltage source 803 is temporarily or temporarily connected to the device 800, wherein one of the two poles of the voltage source 803 is connected to the first contactable region 802A and the other of the two poles of the voltage source 803 is connected to the second contactable region 802B.
- FIG. 2A shows an exemplary embodiment of a device 200 according to the invention, which provides an electrostatic coupling according to the principle of unipolar coupling.
- the device 200 has a flexible plastic carrier film 203, a cover layer 205 and an electrode structure 204 arranged therebetween.
- the device 200 is in a coupled state, ie the device 200 electrostatically couples the substrate 201 and the substrate carrier 202 together.
- the substrate 201 is electrostatically coupled to the substrate carrier 202 via the device 200.
- a DC voltage source 210 is provided, wherein one of the two poles of the voltage source 210 is temporarily or temporarily in contact with a contacting section 211 of the electrode structure 204.
- the substrate 201 or the substrate carrier 202 are temporarily or temporarily connected to the respective other of the two poles of the voltage source 210.
- the electrode structure 204 is contacted with the positive pole, and the substrate 201 and the substrate carrier 202 are respectively connected to ground 209 and contacted with the negative terminal 209 of the voltage source 210.
- the electrode structure 204 consists of a metal layer which is cantilevered on the carrier foil 203, e.g. a polyimide film is applied.
- the cover layer 205 has insulating properties.
- the cover layer 205 may be an adhered polymer film, which preferably has the same material and / or the same thickness as the carrier film 203.
- Contact points 211 for charging remain contactable in a small surface area.
- a DC voltage 210 is applied at least temporarily or temporarily between the electrode structure 204 and the applied substrate 201 for unipolar fixing of the foil stack 203, 204, 205.
- the electrode structure 204 is connected to the positive pole of the voltage source 210, and the substrate 201 is connected to the negative pole 209A of the voltage source 210 or grounded.
- the substrate 201 is made of a conductive or a semiconducting material, such as e.g. Silicon exists.
- the applied substrate 201 may have a conductive or semiconducting layer 212, which serves as a counterpole to the electrode structure 204 in the device 200.
- the electrode structure 204 would be connected to the positive pole of the voltage source 210, and the conductive or semiconducting layer 212 of the substrate 201 would be connected to the negative pole 209B of the voltage source 210, as shown in FIG. 2A.
- a potential may also be applied between the electrode structure 204 of the device 200 and an underlying plate 202 (substrate carrier).
- This plate 202 may be a mobile carrier or a fixed wafer chuck, or a hotplate, or a silicon wafer, or even a glass or ceramic, conductively coated wafer.
- FIG. 2B shows an exemplary embodiment of a device 200 according to the invention, which provides an electrostatic coupling according to the principle of bipolar coupling.
- the device 200 shown in FIG. 2B has two electrode structures 204A, 204B which can be contacted independently of one another.
- the two electrode structures 204A, 204B are spatially, e.g. by a gap 207, separated from each other and electrically isolated from each other.
- an insulating medium such as e.g. Air, ceramic, plastic or the like may be provided.
- a first electrode structure 204A has a first contacting portion 211A.
- One of the two poles of a voltage source 210 is connected to the first electrode structure 204A via the contacting portion 211A.
- a second electrode structure 204B has a second contacting portion 211B.
- the other of the two poles of the voltage source 210 is connected to the second electrode structure 204B via the contacting section 21 1 B.
- only one electrode structure 204 could be provided, which in turn is subdivided into two electrode regions 204A, 204B.
- the device 200 shown in FIG. 2B then has, for example, a first electrode region 204A and a second electrode region 204B, with the two electrode regions 204A, 204B also being able to intermesh.
- Such a division of an electrode structure 204 into a plurality of electrode regions 204A, 204B will be explained in more detail later with reference to FIG.
- the two electrode structures or the two electrode regions 204A, 204B are arranged in a same plane, i. they are both in the plane between the carrier film 203 and the cover layer 205.
- FIG. 2C shows a multilayer unipolar structure of the device 200 according to the invention.
- the device 200 has two electrode structures 204C, 204D arranged one above the other.
- the two electrode structures 204C, 204D are accordingly arranged in two different planes.
- the second electrode structure 204D comes into contact with the cover layer 205 with a side 223 facing the substrate 201.
- the second electrode structure 204D comes into contact with the insulating layer 208 with a side 224 facing the substrate carrier 202.
- the first electrode structure 204C is in a first plane, i. between the insulating layer 208 and the carrier film 203, while the second electrode structure
- the first electrode structure 204C has a first contacting section 21C, via which a pole of a voltage source 210 can be contacted with the first electrode structure 204C.
- the second electrode structure 204D has a second contacting section 211 D, via which one pole of a voltage source 210 can be contacted with the second electrode structure 204D.
- the carrier foil 203 has a thickness di.
- the cover layer 205 has a thickness d 2 .
- the insulating layer 208 has a thickness ds.
- the thickness da of the insulation layer 208 is greater than the thickness d 2 of the cover layer 205 or the thickness d 1 of the support film 203.
- the thickness ds of the insulation layer 208 is greater than the thickness d 1 of the support film 203 and the thickness d of the cover layer 205 together.
- FIG. 2E shows an exemplary embodiment of a device 200 according to the invention with a layer stack 203, 204E, 208, 204F, 205, which has a unipolar electrode structure 204E and a bipolar electrode structure with a first electrode region 204F and a second electrode region 204G. Between the unipolar electrode structure 204E and the bipolar electrode structure 204F, 204G, an insulating layer 208 is disposed.
- the two electrode regions 204F, 204G are separated from one another by an insulating gap 207 and electrically insulated from one another.
- two separately contactable electrode structures between cover layer 205 and insulation layer 208 can also be provided.
- the two electrode regions 204F, 204G of the bipolar electrode structure are arranged between the covering layer 205 and the insulating layer 208.
- the unipolar electrode structure 204E is disposed between the insulating layer 208 and the support film 203. It is also conceivable that the unipolar electrode structure 204E is arranged between the insulating layer 208 and the covering layer 205, and that the bipolar electrode structure 204F, 204G is arranged between the insulating layer 208 and the carrier foil 203. It would also be conceivable for the covering layer 205 to come into contact with the substrate carrier 202 and for the carrier film 203 to come into contact with the substrate 201. As already mentioned with reference to FIG. 2D, it makes sense if the thickness d 3 of the insulating layer 208 is greater than the thickness di of the carrier film 203 and / or the thickness d 2 of the covering layer 205.
- FIG. 2F shows a further embodiment of the device 200 according to the invention with a layer stack 203, 204H, 204K, 208, 204L, 204, 205 having a first bipolar electrode structure 204H, 204K and a second bipolar electrode structure 204L, 204M.
- the first bipolar electrode structure has a first electrode region 204H and a second electrode region 204K, wherein both electrode regions 204H, 204K are separated from each other by an insulating gap 207A.
- the first bipolar electrode structure 204H, 204K is arranged between the insulating layer 208 and the carrier foil 203, ie in a first plane.
- the second bipolar electrode structure has a first electrode region 204L and a second electrode region 20M, wherein both electrode regions 204L, 204M are separated from each other by an insulating gap 207B.
- the second bipolar electrode structure 204L, 204M is arranged between the insulating layer 208 and the covering layer 205, ie in a second plane.
- FIG. 3 shows a perspective view of an exemplary embodiment of a device 300 according to the invention in a round format.
- the device 300 has a flexible plastic carrier film 303.
- an electrode structure 304 is arranged on the carrier film 303.
- the electrode structure 304 is divided into a first electrode region 304A and a second electrode region 304B.
- the electrode regions 304A, 304B are provided in the form of a punched-out metal foil. It is also conceivable that the electrode regions 304A, 304B are provided, for example, by etching or by sputtering or vapor deposition as a metallic thin film.
- the first electrode region 304A has a first semicircular segmented edge portion 310A.
- the first edge portion 310A is disposed along a first half of the outer circumference of the carrier film 303.
- the first edge portion 310A extend a plurality of parallel webs 311 A in the direction of an opposite circumferentially arranged second edge portion 31 OB. Between the webs 311 A, a gap 312 A is formed. In the gap 312A, webs 311 B of the second electrode region 304B extend.
- the second electrode region 304B has a second semicircular segmented edge portion 31B0.
- the second edge portion 31 OB is arranged along the second half of the outer circumference of the carrier film 303.
- the area between the lands 311A, 3B has insulating properties, so that the conductive lands 311A, 311B are electrically insulated from each other.
- the device 300 has a first contacting section 320A and a second contacting section 320B.
- the two contacting portions 320A, 320B are configured to be brought into contact with a voltage source.
- FIG. 4 shows the device 300, which is arranged between a substrate 301 and a substrate carrier 302. It can also be seen that the two contacting sections 320A, 320B project at least in sections beyond the outer circumference of the substrate 301 and of the substrate carrier 302.
- the device 300 can also be contacted in a coupled state, in which the device 300 is located between the substrate 301 and the substrate carrier 302, via the contacting sections 320A, 320B, since they are still accessible from the outside, even in the coupled state.
- the ear-shaped contacting regions 321 A, 321 B, or the external contacts can be connected, for example, with clamping contacts of a voltage source.
- the clamping contacts can advantageously be attached to the ear-shaped contacting regions 321 A, 321 B in such a way that the contacting sections 320A, 320B of the electrode structure 304 are electrically insulated to the outside.
- a contacting section 320 In the case of a unipolar electrode structure 304, the provision of a contacting section 320 is sufficient, while in the case of a bipolar electrode structure 304 two contacting sections are advantageous.
- Embodiments of the external contacts or embodiments of the contacting sections 320A, 320B of the electrode structure 304 and of the contacting regions 321A, 321B of the carrier foil 303 will be explained in more detail later with reference to FIGS. 7A to 7D.
- FIG. 5 initially shows a further embodiment of a device 500 according to the invention.
- the device 500 has a flexible plastic carrier foil 503. On the carrier film 503, an electrode structure 504 is arranged.
- the device 500 is arranged between a substrate 501 and a substrate carrier 502.
- the substrate carrier 502 has a recess 510.
- the recess 510 is provided as a material recess, ie the interior region of the side 509 of the substrate carrier 502 facing the substrate 501 has been recessed. This results in a laterally circumferential wall 508, whose upper edge 507 is higher than the rest of the recessed area of the recess 510.
- the device 500 can be arranged. More specifically, depending on the depth of the recess 510, the carrier foil 503, the electrode structure 504 and optionally a covering layer (not shown) may be arranged at least in sections within the recess 510.
- the substrate 501 can also be arranged in the recess 510, wherein the wall 508 can be used as a lateral boundary against slippage of the substrate 501.
- the wall 508 has a first opening 51 1A.
- the opening 51 1 A is formed such that a first contacting portion 520 A of the device 500 fits into it.
- the wall 508 also has a second opening 51 1 B.
- the second opening 51 1 B is formed such that a second contacting portion 520 B of the device 500 fits into it.
- the openings 51 1 A, 51 1 B are therefore designed to receive the contacting sections 520A, 520B in such a way that they extend beyond the circumference of the substrate carrier 502.
- the contacting portions 520A, 520B remain accessible even when the device 500 is disposed within the recess 510 provided in the substrate carrier 502.
- the contacting portions 520A, 520B, or optionally further contacting portions may also be provided within the recess 510, i. they would not extend beyond the outer circumference of the substrate carrier 502.
- FIG. 6 shows a further embodiment of a device 600 according to the invention with a flexible plastic carrier foil 603 and an electrode structure 604 arranged thereon.
- the device 600 has a recess 610.
- the recess 610 extends completely through the device 600. In other words, the recess 610 forms a hole in the device 600.
- the device 600 may have a plurality of recesses 610, 61 1.
- the electrode structure 604 extends correspondingly to the remaining constituents of the carrier film 603. In the case of a plurality of recesses 610, 61 1, webs 612 remain on the carrier film 603. For example, it forms between the recess 610 and the recess 611 a web 612. On the webs 612, the electrode structure 604 may be arranged.
- FIG. 7A shows a section of a device 700 according to the invention in the region of an external electrical contact.
- the device 700 is arranged between a substrate 701 and a substrate carrier 702.
- the device 700 has a flexible plastic carrier film 703 with an electrode structure 704 applied thereon.
- a covering layer 705 is arranged on the side of the electrode structure 704 facing the substrate 701.
- the cover layer 705 has a recess 730.
- the recess 730 is a material-free area within the cover layer 705.
- the recess 730 extends completely through the cover layer 705, i. it extends to the underlying electrode structure 704 and thus exposes them at least in sections. This exposed portion 720 of the electrode structure 704 can be used for contacting the electrode structure 704.
- the recess 730 provided in the cover layer 705 is provided in the area of an external contact of the device 700 shown by dashed lines 740.
- the electrode structure 704 can be contacted through the recess 730.
- a pin 735 or pin 735 of a voltage source it is possible for a pin 735 or pin 735 of a voltage source to contact the underlying electrode structure 704 through the recess 730.
- FIG. 7B shows a further exemplary embodiment of the device 700 according to the invention.
- the recess 730 is covered with a contact layer 731.
- the contact layer 731 may comprise a conductive or a semiconducting material.
- the device 700 has a contact layer 731 having a conductive or a semiconductive material.
- the contact layer 731 is arranged on the side of the cover layer 705 facing away from the electrode structure 704.
- the contact layer 731 covers the recess 730 provided in the cover layer 705 at least in sections.
- the contact layer 731 is arranged at a distance from the electrode structure 704 in the region of the recess 730. This results in a closed cavity 730 between the contact layer 731, the cover layer 705 and the electrode structure 704. If, as shown in FIG. 7C, a pin 735 or contact pin 735 which is connected to an external voltage source is pressed onto the contact layer 731, the air gap in the cavity 730 is compressed and electrical contact with the electrode structure 704 occurs. The electrode structure 704 can thus be charged.
- the contact layer 731 After the contact pin 735 has been lifted off, the contact layer 731 returns to the starting position shown in FIG. 7B, in which it is at a distance from the electrode structure 704. The contact layer 731 thus remains isolated from the electrode structure 704, and the electrode structure 704 can thus not be discharged, for example via the contact layer 731.
- the contact layer 731 in the region of the recess 730 can be brought into contact with the electrode structure 704 when a force is exerted on the contact layer 731 and / or on the electrode structure 704.
- the contact layer 731 thus has a contact section 736 on which the contact layer 731 can be brought into contact with the electrode structure 704. As can be seen in FIGS. 7B and 7C, this contact section 736 is arranged approximately in the region of the recess 730.
- the contact layer 731 is formed as a thin stainless steel foil which is glued over the recess 730 provided in the cover layer 705. Stainless steel is well suited because this material is largely resistant to the chemicals used in wafer processing.
- FIG. 7D shows a further embodiment of a device 700 according to the invention. Here too, a section of the device 700 is shown in the region of an external contact.
- This embodiment differs from the embodiments previously described with reference to FIGS. 7A, 7B and 7C, inter alia, in that the contact layer 731 has a contact section 736, which is arranged in the radial direction R at a distance from the recess 730. A pin 735 or pin 735 connected to a voltage source may be brought into contact with the contact portion 736. The contact layer 731 is thus provided with a charge.
- an insulating layer 734 is attached.
- the insulating layer 734 is arranged on the side of the contact layer 731 facing the substrate 701 and electrically insulates the contact layer 731 from the outside.
- the insulating layer 734 may be made of the same material as the carrier foil 703. In order to transfer the charge carriers present on the contact layer 731 to the electrode structure 704 in order to charge them, the contact layer 731 must be brought into contact with the electrode structure 704.
- a force Fi is applied to the insulating layer 734, which force acts downward, ie in the direction of the electrode structure 704.
- a force L ? be applied to the electrode structure 704, which acts upwards, ie in the direction of the contact layer 731.
- the contact portion 736 for charging is thus geometrically different from that in the cover layer
- both the contact pin 735 must be placed on the contact portion 736, as well as the cavity 730 are pushed through mechanically. This can be advantageous, e.g. because an inadvertent discharge when "touching" the electrostatic device is avoided It is unlikely that a person touching the device 700 will simultaneously actuate both contacts 736, 730 so that a discharge could occur.
- the contact layer 731 is provided as an insulating layer having a one-sided conductive coating, e.g. with a metal layer, executed.
- the single-sided conductive coating is in this case on the underside, i. on the side of the contact layer 731 facing the electrode structure 704.
- the contact layer 731 would thus be electrically conductive on the side facing the electrode structure 704 and electrically insulated on the side remote from the electrode structure 704.
- the provision of an insulating layer 734 would be optional in this case.
- Figure 7E shows the embodiment discussed with reference to Figure 7D in a plan view.
- the cover layer 705 protrudes furthest in the radial direction Outside. Therefore, only the outlines 705a of the cover layer 705 can be seen here.
- the cover layer 705 covers the underlying layers.
- the cover layer 705 has a recess 730.
- a contact layer 731 which covers the recess 730 at least in sections, is mounted on the cover layer 705. For this reason, the recess 730 is shown in dashed lines in FIG. 7E.
- An insulating layer 734 is arranged above the contact layer 731 and covers the contact layer 731 at least in sections.
- the portion of the contact layer 731 covered by the insulating layer 734 is shown in dashed lines in FIG. 7E.
- the free-flowing portion 736 of the contact layer 731 is exposed and accessible from outside, and thus, e.g. Contactable with a pin 735.
- the exposed portion 736 forms the contact portion 736 and is hatched in FIG. 7E.
- the contact portion 736 e.g. with a pin 735
- the contact layer 731 must also be brought into contact by applying a force in the direction of the electrode structure 704. For example, a pressure on the device 700 may be exerted in the region of the recess 730 for this purpose.
- the device 700 has a center C on. It can be seen that the recess 730 and the contact portion 736, viewed from this center C, are arranged spaced apart in the radial direction R.
- Figure 7F shows an alternative embodiment in a plan view, in this embodiment, the insulating layer 734 projects furthest outward in the radial direction. Therefore, only the outlines 734a of the insulating layer 734 can be seen here.
- the contact layer 731 is disposed under the insulating layer 734.
- the contact layer 731 is here at least partially hidden by the overlying insulating layer 734.
- the contact layer 731 may, as explained above with reference to Figure 7E, be strip-shaped. Alternatively, however, the contact layer 731 may be circular and extend below the visible insulating layer 734. This can be seen beginning in Figure 7F.
- the insulating layer 734 has a recess 740.
- the recess 740 extends radially inward from the outer edge 734a of the insulating layer 734, thus exposing a portion 736 of the underlying contact layer 731.
- This section 736 may be contacted by a pin 735 and thus forms a contact section 736.
- FIG. 7F shows an outer edge 731 a of the contact layer 731.
- the diameter of the contact layer 731 here is smaller than the diameter of the insulating layer 734 disposed above it.
- the contact layer 731 is thus covered by the insulating layer 734, with the exception of the recess 740, and insulated by the insulating layer 734 to the outside.
- the contact section 736 e.g. with a pin 735
- the contact layer 731 must also be brought into contact by applying a force in the direction of the electrode structure 704. For example, a pressure on the device 700 may be exerted in the region of the recess 730 for this purpose.
- the recess 730 and the contact portion 736 are spaced from each other in the radial direction R.
- FIG. 7G shows a further exemplary embodiment of a device 700 according to the invention in a plan view.
- the insulating layer 734 and the contact layer 731 arranged thereunder have approximately the same diameter. In the plan view, therefore, only the outlines 734a of the insulating layer 734 can be seen.
- the contact layer 731 is disposed under the insulating layer 734.
- the contact layer 731 is here at least partially hidden by the overlying insulating layer 734.
- the contact layer 731 may, as explained above with reference to Figure 7E, be strip-shaped.
- the contact layer 731 may also be circular and extend underneath the visible insulating layer 734.
- the insulating layer 734 has a recess 740.
- the recess 740 extends radially inwardly from the outer edge 734a of the insulating layer 734 and thus exposes a portion 736 of the underlying contact layer 731.
- This section 736 may be contacted by a pin 735 and thus forms a contact section 736.
- FIG. 7G shows an outer edge 731 a of the contact layer 731.
- the diameter of the contact layer 731 is about the same as the diameter of the insulating layer 734 arranged above it.
- the contact layer 731 is thus covered by the insulating layer 734, with the exception of the recess 740, and insulated by the insulating layer 734 to the outside.
- the contact section 736 e.g. with a pin 735, to be contacted.
- the contact layer 731 must also be brought into contact by applying a force in the direction of the electrode structure 704. For example, a pressure on the device 700 may be exerted in the region of the recess 730 for this purpose.
- the recess 730 and the contact section 736 are arranged offset along the circumference of the device 700 by an angle ⁇ .
- the device 700 has a center C on.
- the center 736c of the contact portion 736 is removed by the distance b from the center C of the apparatus 700.
- the center 730c of the recess 730 is removed by the distance a from the center C of the device 700.
- the route a and the route b have the same length L here.
- the contact portion 736 and the recess 730 are equidistant from the center C in the radial direction.
- one of the two distances a, b is shorter than the other of the two distances a, b.
- the recess 730 would be spaced radially from the contact portion 736, in addition to the illustrated angular offset by the angle a.
- the contact portion 736 may be located closer to the center C of the device 700 in the radial direction R than the recess 730. That is, the recess would be located farther out than the contact portion 736 and the contact portion 736 could eg in the form of a hole in the insulating layer 734, as indicated by the hole 750.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017564331A JP2018518844A (ja) | 2015-06-11 | 2016-06-10 | 基板を基板キャリアに静電結合するためのフィルムを有する装置 |
| KR1020177037652A KR102208071B1 (ko) | 2015-06-11 | 2016-06-10 | 기판 캐리어로의 기판의 정전기적 커플링을 위한 필름을 갖는 장치 |
| US15/833,735 US10304714B2 (en) | 2015-06-11 | 2017-12-06 | Device comprising film for electrostatic coupling of a substrate to a substrate carrier |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015210736.1 | 2015-06-11 | ||
| DE102015210736.1A DE102015210736B3 (de) | 2015-06-11 | 2015-06-11 | Vorrichtung mit folie zum elektrostatischen koppeln eines substrats mit einem substratträger |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US15/833,735 Continuation US10304714B2 (en) | 2015-06-11 | 2017-12-06 | Device comprising film for electrostatic coupling of a substrate to a substrate carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016198634A1 true WO2016198634A1 (de) | 2016-12-15 |
Family
ID=56121079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2016/063347 Ceased WO2016198634A1 (de) | 2015-06-11 | 2016-06-10 | Vorrichtung mit folie zum elektrostatischen koppeln eines substrats mit einem substratträger |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10304714B2 (de) |
| JP (1) | JP2018518844A (de) |
| KR (1) | KR102208071B1 (de) |
| DE (1) | DE102015210736B3 (de) |
| WO (1) | WO2016198634A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6773457B2 (ja) * | 2016-06-07 | 2020-10-21 | 株式会社ディスコ | 静電チャックシート及びウエーハの加工方法 |
| US11094573B2 (en) * | 2018-11-21 | 2021-08-17 | Applied Materials, Inc. | Method and apparatus for thin wafer carrier |
| US11673161B2 (en) * | 2019-03-11 | 2023-06-13 | Technetics Group Llc | Methods of manufacturing electrostatic chucks |
| JP7159942B2 (ja) * | 2019-03-28 | 2022-10-25 | 株式会社村田製作所 | 外観検査装置 |
| CN111314838B (zh) * | 2020-02-25 | 2021-08-27 | 绍兴中芯集成电路制造股份有限公司 | Mems麦克风器件的检测方法 |
| CN111564362B (zh) * | 2020-06-12 | 2023-06-09 | 武汉新芯集成电路制造有限公司 | 晶圆边缘处理方法 |
| CN120883350A (zh) | 2023-12-11 | 2025-10-31 | 栗村化学株式会社 | 静电吸盘膜 |
| KR102940500B1 (ko) | 2024-10-30 | 2026-03-18 | 율촌화학 주식회사 | 반도체 웨이퍼를 정전 척에 고정하는 시스템 및 이를 이용한 반도체 웨이퍼를 정전 척에 고정하는 방법 |
| KR102926117B1 (ko) | 2024-10-30 | 2026-02-12 | 율촌화학 주식회사 | 반도체 점착용 필름 |
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- 2016-06-10 WO PCT/EP2016/063347 patent/WO2016198634A1/de not_active Ceased
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| US4724510A (en) * | 1986-12-12 | 1988-02-09 | Tegal Corporation | Electrostatic wafer clamp |
| EP0486966A1 (de) * | 1990-11-17 | 1992-05-27 | Tokyo Electron Limited | Elektrostatische Halteplatte |
| US5275683A (en) * | 1991-10-24 | 1994-01-04 | Tokyo Electron Limited | Mount for supporting substrates and plasma processing apparatus using the same |
| JP3596127B2 (ja) * | 1995-12-04 | 2004-12-02 | ソニー株式会社 | 静電チャック、薄板保持装置、半導体製造装置、搬送方法及び半導体の製造方法 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20180108557A1 (en) | 2018-04-19 |
| KR20180014068A (ko) | 2018-02-07 |
| KR102208071B1 (ko) | 2021-01-27 |
| DE102015210736B3 (de) | 2016-10-27 |
| JP2018518844A (ja) | 2018-07-12 |
| US10304714B2 (en) | 2019-05-28 |
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