# US 9,873,227 B2 · Method for transferring objects onto a substrate using a compact particle film, including a step of producing connectors on the objects

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- Number: US 9,873,227 B2
- Document ID: US9873227B2
- Status: Granted
- Kind: B2
- Application number: 14/375,858
- Filed: 2013-02-08
- Published: 2014-12-25
- Granted: 2018-01-23
- Earliest claimed: 2012-02-10
- Assignees: Commissariat A L'energie Atomique Et Aux Energies Alternatives
- Applicants: Commissariat A L'energie Atomique Et Aux Energies Alternatives
- Inventors: Olivier Dellea; Philippe Coronel; Nicolas Dreuilles; Pascal Fugier
- Web page: https://patentgrep.com/patent/US9873227B2

## CPC

- B29C 65/70: by moulding (using a particular moulding technique, see the relevant technique {, e.g. by injection B29C45/14467})
- B05C 3/00: Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C 3/18: only one side of the work coming into contact with the liquid or other fluent material (B05C3/02 takes precedence)
- B05D 1/20: substances to be applied floating on a fluid
- G02B 6/26: Optical coupling means (G02B6/36, G02B6/42 take precedence)
- H01R 43/007: {for elastomeric connecting elements}
- H10W 72/00: Interconnections or connectors in packages
- B05C 5/02: {the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g.} from an outlet device in contact or almost in contact, with the work
- B05D 2252/02: of indefinite length
- B05D 2401/32: applied as powders
- B29K 2509/08: Glass
- B29K 2995/0093: hydrophobic
- B29L 2011/0075: {Light guides, optical cables}
- B29L 2031/36: Plugs, connectors, or parts thereof
- B29L 2031/7278: {Couplings, connectors, nipples (B29L2031/7274 takes precedence; for pipes or tubes B29L2031/24; electrical B29L2031/34)}
- B29L 2031/779: {Heating equipment}
- B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B05C: APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (spraying apparatus, atomising apparatus, nozzles B05B; plant for applying liquids or other fluent materials to objects by electrostatic spraying B05B5/08)
- B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES

## Abstract

A method for transferring objects onto a substrate, or running substrate, the objects to be transferred being placed in a transfer area containing a carrier liquid forming a conveyor, the objects being held by a compact film of particles floating on the carrier liquid of the transfer area, within which the objects are displaced with the film of particles to be transferred onto the substrate, making at least one connector on at least one of the objects, the connector being made by a substance comprising a polymerizable compound, put in contact with the object arranged within the transfer area, and then by polymerization of the substance.

## Claims

### Claim 1

A method for transferring objects onto a substrate, comprising:
providing a transfer area including a carrier liquid forming a conveyor;
providing a film of particles floating on the carrier liquid;
placing the objects on the film of particles, the objects displacing a portion of the film of particles;
forming at least one connector between at least two consecutive objects of the objects placed on the film of particles, the at least one connector being in contact with at least one of said two consecutive objects and comprising a substance including a polymerisable compound, the forming comprising polymerising the substance; and
conveying the objects on the transfer area, the displaced portion of the film of particles keeping the objects on the carrier liquid during the conveying.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the forming the at least one connector further comprises applying the substance including the polymerisable compound to the film of particles to connect the at least two consecutive objects spaced apart from each other within the transfer area, and then polymerising the substance.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the forming the at least one connector further comprises applying the substance including the polymerisable compound to one of the at least two consecutive objects to connect the at least two consecutive objects to be stacked on each other within the transfer area, and then polymerising the substance.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the substrate includes at least one through-hole housing the at least one connector formed between a lower surface of an object of the at least two consecutive objects and the film of particles.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the at least one connector is an electric, thermal, optical, piezoelectric, or mechanical connector.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the at least one connector is disposed on an upper surface of at least one of the at least two consecutive objects.

### Claim 7 (depends on 1)

The method according to claim 1, wherein the at least one connector is disposed on a lower surface of at least one of the objects by being interposed between the lower surface and the film of particles.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the substance is in a form of a liquid or a paste.

### Claim 9 (depends on 1)

The method according to claim 1, wherein the substance is hydrophobic.

### Claim 10 (depends on 1)

The method according to claim 1, wherein the substance is based on a silicone resin, an epoxy resin, and/or a polyurethane resin.

### Claim 11 (depends on 1)

The method according to claim 1, wherein the substance comprises at least some particles taken from following materials: carbon black; carbon nanotubes; graphene; fibers, including at least one of carbon, steel, aluminium, or copper fibers; metal powders; and metal oxides.

### Claim 12 (depends on 1)

The method according to claim 1, wherein at least one of the at least two consecutive objects is placed in the transfer area, floats on the carrier liquid forming the conveyor, and is enclosed by the film of particles.

### Claim 13 (depends on 1)

The method according to claim 1, wherein at least one of the at least two consecutive objects is placed in the transfer area on the film of particles and depresses into the carrier liquid particles in the film of particles underlying said at least one of the at least two consecutive objects.

### Claim 14 (depends on 1)

The method according to claim 1, wherein the placed objects each have a large dimension greater than 0.2 cm.

### Claim 15 (depends on 1)

The method according to claim 1, wherein the placed objects are objects taken from the group of silicon chips, components of organic electronics, metallic elements, photovoltaic cells, battery cells, and micro-battery cells.

### Claim 16 (depends on 1)

The method according to claim 1, further comprising circulating particles of the film of particles and the carrier liquid by a tilted ramp attached to an inlet of the transfer area.