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US 2016/0101432 A1Published application
Method for producing a substrate by spraying particles onto a compact film of solid particles on a carrier liquid
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsOlivier DELLEA, Philippe CORONEL, Nicolas DREUILLES, Pascal FUGIER
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Abstract
A method for producing an assembly of particles bound by a substrate, including: making a compact film of solid particles floating on a carrier liquid, the solid particles potentially holding objects between them; spraying particles onto a face of the compact film opposite to the one immersed in a carrier liquid, to create a substrate-forming-skin adhering to the solid particles; and extracting an obtained assembly outside the carrier liquid.
Claims19
1-16. (canceled)
17:
- A method for producing an assembly of particles bound by a substrate, comprising:
- making a compact film of solid particles floating on a carrier liquid, the solid particles potentially holding objects between them;
- spraying particles onto a face of the compact film opposite to the one immersed in said carrier liquid, to create a substrate-forming-skin adhering to the solid particles;
- and
- extracting an obtained assembly outside the carrier liquid.
2 more elements
18:
- The method according to claim 17, wherein the spraying the particles is performed by vaporization of a liquid or by nebulization.
19:
- The method according to claim 17, wherein the particles sprayed during the spraying comprise polymerizable monomers.
20:
- The method according to claim 17, wherein the particles sprayed during the spraying comprise photopolymerizable monomers.
21:
- The method according to claim 17, wherein the carrier liquid is located in a transfer area comprising an inlet of solid particles on an outlet of solid particles, and the transfer area is continuously supplied with solid particles through that inlet, and the extracting the obtained assembly is continuously performed through the outlet.
22:
- The method according to claim 21, wherein the making the compact film of solid particles on the carrier liquid is implemented by making particles build up on a stop placed at the outlet of the transfer area.
23:
- The method according to claim 22, wherein the stop is a roller and the extracting the assembly through the outlet of the transfer area is performed by rotating the roller.
24:
- The method according to claim 21, implementing a tilted ramp for circulating solid particles, connected to the inlet of the transfer area, and on which the carrier liquid can circulate.
25:
- The method according to claim 17, wherein the spraying particles is performed to obtain a substrate-forming skin having a plurality of areas with different characteristics.
26:
- The method according to claim 25, wherein the different areas of the substrate have different compositions.
27:
- The method according to claim 25, wherein the different areas of the substrate are obtained using one or more masks.
28:
- The method according to claim 17, wherein the substrate-forming skin is made from a composition comprising a polymerizable, photo-crosslinkable compound.
29:
- The method according to claim 17, wherein the substrate-forming skin is made from a composition comprising acrylonitrile.
30:
- The method according to claim 17, wherein the compact film of solid particles holds at least one object among the group of silicon chips, micro-batteries, components of organic electronics, metal elements, photovoltaic cells, cells, and micro-cells.
31:
- The method according to claim 17, wherein the substrate-forming skin is made to have an average thickness between 1 and 100 μm.
32:
- A method for producing a device from at least two assemblies, each being obtained by implementing a method according to claim 17, both assemblies being then superimposed.
33:
- The method according to claim 32, wherein the device is obtained from at least a first assembly and a second assembly superimposed and arranged in contact with each other, so that the first assembly comprises a substrate arranged between the compact film of solid particles of the first assembly and the compact film of solid particles of the second assembly, and so that the substrate comprises an electrically conductive area providing the electrical connection between electrically conductive parts of the first and second films of solid particles.
34:
- The method according to claim 32, implemented for producing an optoelectronic device.