EP2892658A1 - Procede de formation d'un film de particules sur liquide porteur, avec deplacement d'une rampe inclinee de compression des particules - Google Patents
Procede de formation d'un film de particules sur liquide porteur, avec deplacement d'une rampe inclinee de compression des particulesInfo
- Publication number
- EP2892658A1 EP2892658A1 EP13762434.2A EP13762434A EP2892658A1 EP 2892658 A1 EP2892658 A1 EP 2892658A1 EP 13762434 A EP13762434 A EP 13762434A EP 2892658 A1 EP2892658 A1 EP 2892658A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- particles
- substrate
- carrier liquid
- head
- 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.)
- Granted
Links
- 239000002245 particle Substances 0.000 title claims abstract description 137
- 239000007788 liquid Substances 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000000758 substrate Substances 0.000 claims abstract description 79
- 238000000151 deposition Methods 0.000 claims abstract description 23
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 19
- 230000004888 barrier function Effects 0.000 claims description 29
- 238000012546 transfer Methods 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 238000012549 training Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 description 17
- 230000008021 deposition Effects 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 6
- 230000000717 retained effect Effects 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- 238000001074 Langmuir--Blodgett assembly Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000001459 lithography Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000012798 spherical particle Substances 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- -1 platinum Chemical class 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
- B05C19/008—Accessories or implements for use in connection with applying particulate materials to surfaces; not provided elsewhere in B05C19/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
- B05C19/04—Apparatus specially adapted for applying particulate materials to surfaces the particulate material being projected, poured or allowed to flow onto the surface of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
- B05D1/20—Processes for applying liquids or other fluent materials performed by dipping substances to be applied floating on a fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2252/00—Sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
- B05D2401/30—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant
- B05D2401/32—Form of the coating product, e.g. solution, water dispersion, powders or the like the coating being applied in other forms than involving eliminable solvent, diluent or dispersant applied as powders
Definitions
- the invention relates to the field of processes and installations for the deposition of particles on a substrate.
- the particle size may be between a few nanometers and several hundred micrometers.
- the particles, preferably of spherical shape, may for example be silica particles.
- the invention essentially relates to a step of forming the film of ordered particles to be deposited, this step also being referred to as structuring the film of particles, in particular when the film comprises different particles, in dimensions and / or materials.
- the invention has applications in many fields such as fuel cells, optics, photonics, polymer coating, chips, MEMs, organic and photovoltaic electronics, heat exchangers, sensors, tribology, etc.
- the most well-known technique is the so-called Langmuir-Blodgett technique, consisting in dispensing particles on a carrier liquid placed in a receptacle, then compressing these particles in order to order them / compact them on the liquid. carrier, in order to obtain an ordered / compact film. Compression is carried out between the substrate partially immersed vertically, and a vertical compression barrier opposed to the substrate, capable of moving to reduce the area occupied by the particles.
- the substrate is set in motion as is the compression barrier, in order to progressively deposit, by capillarity, the film on this substrate.
- the barrier therefore accompanies the pulling movement, in order to preserve the order of the particles within the film.
- Such a solution is for example known from WO-A-200814604, consisting generally of forming a film in a transfer zone, which opens onto a substrate in scrolling.
- the particles are dispensed continuously on an inclined ramp so that they remain permanently ordered / compacted between an upstream front of particles located on the ramp, and the moving substrate.
- This technique when new particles are dispensed on the ramp, they reach directly the upstream front on which they adopt a scheduling which is preserved until the deposit on the substrate.
- This technique can be implemented with an oblique or vertical scrolling substrate, but not with a horizontal substrate.
- this technique also suffers from a significant problem in the event of a defect occurring in the order of the particles in the transfer zone.
- the technique described in document WO-A-200814604 simultaneously performs the deposition on the substrate of a substrate. part of the film, and the scheduling in the transfer zone of a more upstream part of this same film. Therefore, in case of failure occurring in the scheduling in the transfer zone, it must be emptied of its particles and the draw stopped, before new particles ordered come to cover the transfer zone and the draw is rebooted .
- the invention therefore aims to at least partially overcome the disadvantages mentioned above, relating to the achievements of the prior art.
- the invention firstly relates to a method of forming a film of particles on a carrier liquid present in a receptacle, for depositing this film on a substrate, the method comprising the successive steps following: - Performing a film primer between barrier means and a head having an inclined ramp, said primer being obtained by dispensing particles via said inclined ramp, operated until these particles floating on the carrier liquid occupy the space between the barrier means against which they abut, and an upstream particle front located on the inclined ramp; and
- the invention also relates to an installation for depositing a film of particles on a substrate, the installation comprising a receptacle for receiving a carrier liquid on which said film is intended to be formed.
- the installation further comprises a head having an inclined ramp through which the particles are intended to transit before reaching the liquid carrying the receptacle, and also comprises means for moving said head relative to the receptacle, parallel to the surface of said liquid carrier.
- the invention is remarkable in that it allows, essentially by moving the inclined ramp during the formation of the film, to form a film of great length while limiting the risk of defects within the latter.
- the film is formed progressively directly on the ramp at the upstream front of particles, before being deposited on the carrier liquid of the receptacle as the head back.
- This solution contrasts sharply with the conventional solutions of the prior art based on Langmuir-Schaefer and Langmuir-Blodgett techniques, in which all the particles are placed on the carrier liquid, before being put into compression simultaneously. by the barrier provided for this purpose.
- the invention allows the formation of the entire film on the carrier liquid before it is deposited on the substrate, thus avoiding the risks associated with any reworking in the event of a defect in the scheduling, as can be encountered with the transfer zone technique described in WO-A-0- 200814604. Nevertheless, it is the technique of compression of particles by inclined ramp disclosed in this document which is retained by the present invention, because during the formation of the film, at least a portion of the energy required for scheduling / compaction particles are fed by the inclined ramp carrying the carrier liquid and these particles.
- the invention offers the advantage of being applicable to all kinds of deposits on rigid or flexible substrate, horizontally, vertically or obliquely, by capillarity and / or by direct contact, etc.
- the substrate may be plane or in three dimensions.
- said upstream particle front is maintained in the same position on the ramp. This contributes to obtaining constant film formation conditions, regardless of the position of the head during this training.
- said head has suction means for sucking a part of the carrier liquid near the submerged end of said inclined ramp, said means being activated at least during part of said step of elongating the film, and preferably continuously activated throughout the stretching step.
- the liquid flow is active during the formation of the film, but it may be preferable to stop it during the subsequent transfer of the film onto the substrate.
- carrier liquid feed means feed said carrier liquid head so that it carries with it, on the inclined ramp, said particles.
- carrier liquid feed means feed said carrier liquid head so that it carries with it, on the inclined ramp, said particles.
- said carrier liquid suction means communicate with said carrier liquid supply means, a closed circuit integrating these two means traversed by the carrier liquid being preferentially retained.
- the surface tension of the carrier liquid, as well as its temperature should preferably remain stable and uniform. Consequently, it is preferentially used deionized water. Also, to satisfy this condition, either it is expected open circuit operation always bringing water "new" or is retained a closed circuit for filtering and purification of water before reinjecting.
- said carrier liquid and the particles are dispensed in an overflow tank in the head, said reservoir being configured so that when it overflows, the solution of carrier liquid and particles flows on said inclined ramp.
- the liquid and / or the particles could be dispensed directly on the ramp, without departing from the scope of the invention.
- the overflow tank could be used only for the reception of the liquid before it flows on the ramp, or even only for the reception of the particles before they flow on the ramp.
- said carrier liquid and said particles are dispensed separately into said reservoir.
- the liquid and the particles could be premixed before being dispensed into the tank or directly on the inclined ramp, without departing from the scope of the invention.
- the invention also relates to a method of depositing a film of particles on a substrate, comprising a method of forming a film of particles as described above, followed by a step of transferring said film to the substrate. substrate.
- said transfer step is performed with the horizontally oriented substrate.
- said substrate is brought into contact with said floating particle film on the carrier liquid, while being displaced vertically.
- said horizontal substrate is immersed in said carrier liquid during the formation of said film of particles, and then lifted vertically so that this film is deposited on this horizontal substrate, in the manner of the Langmuir technique.
- the vertical movement can be made from the outside, down the substrate until it comes into contact with the film.
- said barrier means may be an integral part of the means for vertically moving the substrate. Be that as it may, in this embodiment, all particles of the compact / ordered film are deposited simultaneously on the substrate.
- said transfer step is carried out with the substrate oriented vertically or obliquely.
- oblique here is meant a direction inclined relative to the vertical and horizontal directions.
- said transfer takes place by drawing the substrate, and by moving the film on the carrier liquid by displacement of said head towards said substrate.
- the head therefore performs a movement opposite to that operated during the formation of the film.
- said vertical or oblique substrate is rigid or flexible, previously immersed at least in part, or located outside the receptacle.
- said barrier means is formed, at least in part, by said substrate.
- additional means can be adopted to fulfill this temporary barrier function, these additional means then being released at the time of depositing the film.
- the method preferably incorporates a thermal annealing step to facilitate the deposition and adhesion of these particles on the substrate.
- FIG. 1 shows a deposition installation according to a preferred embodiment of the present invention, in schematic section taken along the line 1-1 of FIG. 2;
- FIG. 2 represents a schematic view from above of the depot installation shown in FIG. 1;
- FIGS. 3a to 3f show different stages of a deposition process implemented using the installation shown in the preceding figures, according to a first preferred embodiment
- FIGS. 4a and 4b schematize a deposition method according to a second preferred embodiment
- FIG. 5 schematizes a deposition method according to a third preferred embodiment. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
- the installation 1 comprises a device 2 for dispensing particles, whose size may be between a few nanometers and several hundred micrometers.
- the particles preferably of spherical shape, may for example be silica particles.
- Other particles of interest may be made of metal or metal oxide such as platinum, TiO 2, polymer such as polystyrene or PMMA, carbon, etc., or any type of molecule.
- the particles are silica spheres of about 1 ⁇ in diameter, optionally stored in solution in the dispensing device 2.
- the proportion of the medium is about 7 g of particles for 200 ml of solution, here butanol.
- the particles shown in the figures adopt a diameter greater than their actual diameter.
- the dispensing device 2 has a controllable injection nozzle 6, about 500 ⁇ in diameter.
- the installation 1 has, close to the device 2, means
- It also comprises a receptacle in the form of a tray 10, for example of rectangular parallelepipedal shape, in which the carrier liquid 16 is located.
- a head 5 incorporating an inclined ramp 12 for the circulation of the particles 4 and the carrier liquid 16.
- the upper end 12a of the inclined ramp delimits the opening of an overflow tank 9 made in the head, and wherein the particles 4 and the carrier liquid 16 are intended to be dispensed. Therefore, in operation, when the liquid 16 overflows the tank 9, it is discharged by the ramp 12, carrying with it the particles 4 previously dispensed to the surface of the same tank by the device 2.
- the ramp 12 is flat, inclined at an angle between 5 and 60 °, preferably between 5 and 25 °, allowing the particles to be conveyed to the carrier liquid in the tray 10, since the upper end of the ramp 12 is raised relative to the liquid level in this tank.
- the liquid level in the tray is preferably kept constant by liquid suction means, bearing the general numerical reference 13. These means allow to suck the liquid 16 near a lower end 12b of the ramp 12, which is immersed in the same liquid.
- the means 13 have a suction mouth 15 in the lower part of the head, which mouth is connected by a channel to a pump 17, the whole being preferably integrated in a closed hydraulic circuit also comprising the dispensing means of liquid 3 located above the overflow tank 9, and thus communicating with the suction means 13.
- the liquid 16 is thus re-circulated using the aforementioned means, between the lower end of the ramp and its upper end, even if other designs can be retained, particularly open circuit, without departing from the scope of the invention. 'invention.
- the ramp 12 immersed in the liquid 16 of the tank 10, defines with the horizontal level of this liquid an inflection line 24, which forms a particle inlet in the tray.
- This entry is located away from a barrier particles 23 placed in the tray 10 defined by two side flanges 28 holding the carrier fluid 16.
- These flanges 28, opposite and at a distance from each other, s' extend parallel to a main flow direction of the carrier liquid and particles in the installation, this direction being shown schematically by the arrow 30 in Figures 1 and 2.
- the installation 1 is also provided with a support 35 of the substrate 36 immersed in the bottom of the tray.
- the support is equipped with a horizontal plate 37 on which the substrate 36 rests, a handle 39 located outside the tray, and a connection zone 41 between the handle and the tray.
- the aforementioned barrier 23 may here be formed by the part of the connection zone 41 passing through the surface of the liquid 16, and / or by the downstream end wall 10 'of the tank 10, as will be described hereinafter. after.
- the substrate may be rigid or flexible, as it is supported by the plate 37.
- the head 5 is displaceable in translation relative to the tank 10, in the direction 30, namely parallel to the surface of the carrier liquid.
- conventional translation means 45 may be adopted (only shown schematically), for example driven by a linear linear displacement motor.
- the head 5, equipped with its means 2, 3, is therefore able to be moved to the surface of the carrier liquid, so as to be remote / close to the barrier 23.
- a particle deposition method according to a first embodiment will now be described with reference to Figures 3a to 3f.
- the head 5 is sufficiently recessed to allow the immersion of the substrate 36 carried by the support plate 35, as shown schematically in Figure 3a. Then the head is moved in the other direction to move closer to the barrier 23. As shown in Figure 3b, the accumulation area 14 between the barrier and the inflection line 24 is then very low, so to be able to carry out the initiation of a film of particles.
- the injection nozzle 6 is activated in order to begin dispensing the particles 4 in the tank, just as, beforehand, the liquid suction means 13 and liquid supply 3 are themselves also activated.
- the flow rates of the means 13 and 3 are preferably kept constant throughout the dispensing period of the particles, in order to obtain constant film formation conditions, regardless of the position of the head during the formation of the film. this film.
- the particles 4 protruding from the tank circulate on the ramp 12, then enter the zone 14 in which they disperse. As these particles 4 enter the zone 14, they abut against the barrier 23, then the upstream front of these particles tends to shift upstream, direction of the inflection line 24. The injection of particles continues even after the upstream front has exceeded the line 24, so that it rises on the inclined ramp 12, as shown in Figure 3c.
- the particles 4 forming the primer are ordered / compacted in the reduced zone 14 and on the ramp 12, on which they arrange / compact themselves automatically, without assistance, thanks in particular to their kinetic energy and capillary forces. used in the moment of the impact on the front 54.
- the scheduling is such that the compact film primer obtained has a so-called "compact hexagonal" structure. , in which each particle 4 is surrounded and contacted by six other particles 4 in contact with each other. It is then indifferently spoken of compact film of particles, or film of ordered particles, the latter terminology being preferentially retained in the case of spherical particles.
- This elongation step is carried out by continuing the suction and the supply of liquid, as well as the dispensing of particles.
- the head 5 is moved back away from the barrier 23, in order to lengthen the accumulation zone 14 in which the film 4 "of particles 4 is formed.
- This displacement is carried out at a speed that allows to keep the particle front 54 on the ramp 12, preferably in a constant position, as shown schematically in FIGURE 3d.
- the film 4 "lengthens progressively as the head 5 back relative to the tray 10, while maintaining the ordering of the particles 4 already deposited on the ramp 12 and in the zone 14.
- This principle of stretching the film upstream, in the opposite direction of dispensing the particles allows to keep substantially constant film formation conditions, making the quality of the film independent of its length.
- the film 4 ' can be formed over a long length, approaching the total length of the tray, and thus allows quality deposits on large surfaces.
- this film is transferred to the substrate 36 in a similar technique to that of Langmuir-Shaefer.
- a schematic representation of this step has been carried out in FIG 3f.It consists in moving the substrate 36 vertically by means of the handle 39 of the support 35, manually or automatically.Maintained horizontally during this movement, when this substrate 36 comes into contact with the particles of the film 4 ", it is deposited on the upper surface of the substrate. The surplus of particles 4 remaining on the carrier liquid can then be displaced so as to form all or part of the primer of a subsequent film to be deposited. Alternatively, the excess can be sucked.
- the barrier 23 may possibly be formed not only by the support 35, but also in combination with the downstream end wall 10 'of the trough, when the joining zone 41 has a width less than the total width of the tray between the two lateral flanges.
- the connection zone 41 is preferably located closer to the one and / or the other side sills 28.
- thermal annealing subsequent to the transfer.
- This thermal annealing is for example carried out at 80 ° C, using a low-temperature matt rolling film based on polyester, for example sold under the reference PERFEX-MATT TM, of thickness 125 ⁇ .
- the advantage of such a film as a substrate is that one of its faces becomes tacky at a temperature of the order of 80 ° C., which makes it possible to facilitate the adhesion of the particles 4.
- the substrate 36 may be of the silicon, glass or piezoelectric film type.
- the particle / liquid injection and the head displacement speed are adjusted so that the particle front 54 remains in a substantially identical position.
- the particle flow rate can be of the order of 0.01 ml / min to 10 ml / min, while the linear speed of the head 5 can be of the order of a few mm / min to 30 cm. / min.
- the flow of carrier liquid is fixed between 100 and 1000 ml / min.
- FIGS. 4a and 4b schematize a second preferred embodiment, in which the transfer of the film takes place on a substrate 36 oriented vertically.
- the formation of the film 4 "of ordered particles 4 on the carrier liquid 16 is performed in a manner identical or similar to that presented in the context of the first embodiment, with the barrier 23 being constituted by a portion of the substrate 36 located in the periphery of the tank, as shown in Figure 4a, the particles are in direct contact with this substrate, then for the transfer, the substrate is displaced vertically at the same time as the film 4 "is pushed by the head 5 into displacement in the opposite direction to that which allowed the lengthening of the film.
- a conventional print is then obtained, as shown schematically in Figure 4b.
- This embodiment could be implemented with the substrate 36 previously immersed in part in the carrier liquid, without departing from the scope of the invention.
- the substrate 36 previously immersed in part is arranged obliquely, that is to say inclined with respect to vertical and horizontal directions.
- the substrate 36 is preferably displaced in the plane in which it is in the course of the previous step of forming the film, during which its portion passing through the carrier liquid fulfills the role of barrier 23.
- the substrate 36 is preferably rigid, but could be replaced by a flexible substrate in the form of a moving strip passing through rollers or the like.
- heat exchangers These are, for example, heat exchangers.
- the structuring of the walls of the exchangers is a means of regulating the heat exchanges.
- These structures can be made by lithography with a particle mask.
- the implementation of heterogeneous deposits associating particles of different dimensions makes it possible to obtain geometries usually made by lithography, and in particular to geometries with particle size gradients. It is therefore possible, with this technique, to form surfaces with energy gradients, for example to promote the formation and flow of condensed drops on the surface
- compact films can be used as a lithography mask to create micro / nanocucts for the retention of lubricant on the surface of rubbing objects.
- the adjustment of the dimensions of these retention micro / nanocuves is a setting parameter of the coefficient of friction.
- a simple way to change the dimensions of these micro / nanocuves is to use as a mask etching a heterogeneous compact film composed of different particle sizes, easy to obtain with the method specific to the present invention.
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1258473A FR2995228B1 (fr) | 2012-09-10 | 2012-09-10 | Procede de formation d'un film de particules sur liquide porteur, avec deplacement d'une rampe inclinee de compression des particules |
| PCT/EP2013/068593 WO2014037559A1 (fr) | 2012-09-10 | 2013-09-09 | Procede de formation d'un film de particules sur liquide porteur, avec deplacement d'une rampe inclinee de compression des particules |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2892658A1 true EP2892658A1 (fr) | 2015-07-15 |
| EP2892658B1 EP2892658B1 (fr) | 2018-11-07 |
Family
ID=47356076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13762434.2A Not-in-force EP2892658B1 (fr) | 2012-09-10 | 2013-09-09 | Procede de formation d'un film de particules sur liquide porteur, avec deplacement d'une rampe inclinee de compression des particules |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9744557B2 (fr) |
| EP (1) | EP2892658B1 (fr) |
| FR (1) | FR2995228B1 (fr) |
| WO (1) | WO2014037559A1 (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2986720B1 (fr) * | 2012-02-10 | 2014-03-28 | Commissariat Energie Atomique | Procede de depot de particules sur un substrat, comprenant une etape de structuration d'un film de particules sur un convoyeur liquide |
| FR3005432B1 (fr) | 2013-05-13 | 2015-06-05 | Commissariat Energie Atomique | Procede de depot d'un film compact de particules sur la surface interieure d'une piece presentant un creux delimite par cette surface interieure |
| FR3006111B1 (fr) | 2013-05-24 | 2016-11-25 | Commissariat Energie Atomique | Dispositif de conversion d'energie thermique en energie electrique a molecules thermo-sensibles |
| FR3011751B1 (fr) | 2013-10-11 | 2015-12-25 | Commissariat Energie Atomique | Installation et procede a rendement ameliore de formation d'un film compact de particules a la surface d'un liquide porteur |
| FR3011752B1 (fr) | 2013-10-11 | 2015-12-25 | Commissariat Energie Atomique | Installation et procede a rendement ameliore de formation d'un film compact de particules a la surface d'un liquide porteur |
| FR3027449B1 (fr) | 2014-10-21 | 2017-10-20 | Commissariat Energie Atomique | Procede ameliore de realisation d'interconnexions pour circuit integre 3d |
| FR3033333A1 (fr) | 2015-03-06 | 2016-09-09 | Commissariat Energie Atomique | Procede et dispositif pour detecter en temps reel un compose secrete et la cible secretrice ainsi que leurs utilisations |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4801476A (en) | 1986-09-24 | 1989-01-31 | Exxon Research And Engineering Company | Method for production of large area 2-dimensional arrays of close packed colloidal particles |
| CA2385911A1 (fr) * | 2002-05-10 | 2003-11-10 | Nanometrix Inc. | Methode et appareil d'assemblage bidimensionnel de particules |
| US7241341B2 (en) * | 2002-05-10 | 2007-07-10 | Nanometrix Inc. | Method and apparatus for two dimensional assembly of particles |
| US20050281944A1 (en) * | 2004-06-17 | 2005-12-22 | Jang Bor Z | Fluid-assisted self-assembly of meso-scale particles |
| WO2008014604A1 (fr) * | 2006-08-02 | 2008-02-07 | Nanometrix Inc. | Appareil de transfert modulaire et procédé |
| FR2911721B1 (fr) | 2007-01-19 | 2009-05-01 | St Microelectronics Crolles 2 | Dispositif a mosfet sur soi |
| FR2959564B1 (fr) | 2010-04-28 | 2012-06-08 | Commissariat Energie Atomique | Dispositif formant manometre destine a la mesure de pression de fluide diphasique, procede de realisation et reseau fluidique associes |
| FR2971956B1 (fr) * | 2011-02-24 | 2013-03-29 | Commissariat Energie Atomique | Installation et procede pour le depot d'un film de particules ordonnees sur un substrat en defilement |
| FR2977121B1 (fr) | 2011-06-22 | 2014-04-25 | Commissariat Energie Atomique | Systeme de gestion thermique a materiau a volume variable |
| FR2977810A1 (fr) | 2011-07-13 | 2013-01-18 | Commissariat Energie Atomique | Installation et procede pour le depot d'un film de particules ordonnees, de largeur reglable, sur un substrat en defilement |
| FR2985249B1 (fr) | 2012-01-02 | 2014-03-07 | Commissariat Energie Atomique | Procede de transfert d'objets sur un substrat a l'aide d'un film compact de particules |
| FR2986721B1 (fr) | 2012-02-10 | 2014-06-27 | Commissariat Energie Atomique | Procede de depot d'un film de particules sur un substrat via un convoyeur liquide, comprenant une etape de structuration du film sur le substrat |
| FR2986720B1 (fr) | 2012-02-10 | 2014-03-28 | Commissariat Energie Atomique | Procede de depot de particules sur un substrat, comprenant une etape de structuration d'un film de particules sur un convoyeur liquide |
| FR2986722B1 (fr) | 2012-02-10 | 2014-03-28 | Commissariat Energie Atomique | Procede de transfert d'objets sur un substrat a l'aide d'un film compact de particules, avec une etape de realisation de connecteurs sur les objets |
-
2012
- 2012-09-10 FR FR1258473A patent/FR2995228B1/fr not_active Expired - Fee Related
-
2013
- 2013-09-09 US US14/423,957 patent/US9744557B2/en not_active Expired - Fee Related
- 2013-09-09 EP EP13762434.2A patent/EP2892658B1/fr not_active Not-in-force
- 2013-09-09 WO PCT/EP2013/068593 patent/WO2014037559A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014037559A1 (fr) | 2014-03-13 |
| FR2995228B1 (fr) | 2014-09-05 |
| EP2892658B1 (fr) | 2018-11-07 |
| FR2995228A1 (fr) | 2014-03-14 |
| US9744557B2 (en) | 2017-08-29 |
| US20150217328A1 (en) | 2015-08-06 |
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