# US 8,569,113 B2 · Method for producing a microfluid component, as well as microfluid component > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,569,113 B2 - Document ID: US8569113B2 - Status: Granted - Kind: B2 - Application number: 13/119,783 - Filed: 2009-09-07 - Published: 2011-10-06 - Granted: 2013-10-29 - Earliest claimed: 2008-09-18 - Assignees: Robert Bosch GmbH - Applicants: Holger Reinecks; Johanna May - Inventors: Holger Reinecks; Johanna May - Web page: https://patentgrep.com/patent/US8569113B2 ## CPC - B01L 3/502707: {characterised by the manufacture of the container or its components} - B01L 2300/044: pierceable, e.g. films, membranes - B01L 2300/0887: Laminated structure - B01L 2400/0683: mechanically breaking a wall or membrane within a channel or chamber - Y10T 156/1089: of discrete laminae to single face of additional lamina - B01L: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A method for producing a microfluid component includes: Producing a single polymer layer made of at least one plastic or a plastic composite and having a microfluid structure, fitting the polymer layer with at least one semiconductor element, and/or with at least one electronic component, and/or with an optical or optoelectronic component, sealing the microfluid structure. ## Claims ### Claim 1 A method for producing a microfluid component, comprising: producing a layer of polymer, the polymer (I) being formed of at least one of (a) a plastic and (b) a plastic composite, and (II) forming polymer components arranged to provide within the layer of polymer a microfluid structure; fitting at least one of (a) a semiconductor element, (b) an electronic component, (c) an optical component, and (d) an optoelectronic component onto at least one of the polymer components; and sealing the microfluid structure by providing a sealing layer on each of two sides of the layer of polymer, the sealing layers facing away from each other. ### Claim 2 (depends on 1) The method according to claim 1, wherein the layer of polymer is at least one of (a) partially and (b) completely coated with at least one functional layer prior to the fitting. ### Claim 3 (depends on 2) The method according to claim 2, wherein the functional layer is at least one of (I) arranged as at least one of (a) a metal coating, (b) a circuit trace, (c) an electrode, and an antenna for inductive coupling of at least one of (i) energy and (ii) signals, (II) arranged as a protective layer, (III) arranged as a protective later made from silicon nitride, and (IV) arranged as a biologically active layer. ### Claim 4 (depends on 2) The method according to claim 2, wherein the sealing is performed after the fitting and when the layer of polymer is in its coated state. ### Claim 5 (depends on 1) The method according to claim 1, wherein prior to sealing the microfluid structure, at least one of (a) a protective layer and (b) a gel layer is applied on at least one of (a) the semiconductor element, (b) the electronic component, (c) the optical component, and (d) the optoelectronic component. ### Claim 6 (depends on 1) The method according to claim 1, wherein the layer of polymer is microstructured by at least one of (a) hot stamping, (b) thermoforming, and (c) injection molding. ### Claim 7 (depends on 1) The method according to claim 1, wherein the fitting with at least one of (a) the semiconductor element and (b) the electronic component is performed using at least one of (a) a flip chip method, (b) a wire bonding method, and (c) an adhesive bonding method. ### Claim 8 (depends on 1) The method according to claim 1, wherein the sealing of the microfluid structure is performed using at least one of (a) sealable foil, (b) a heat-sealing foil, and (c) laminating foil. ### Claim 9 (depends on 1) The method according to claim 1, wherein the polymer layer includes a plurality of polymer layer sections that each includes a respective microfluid structure, the sections being at least one of (a) identical, (b) disposed next to each other, (c) produced jointly, and (d) produced in a reel-to-reel process, to form a microfluid component. ### Claim 10 (depends on 1) The method according to claim 1, wherein the microfluid structure is fluidically connected to an exterior of the microfluid component. ### Claim 11 (depends on 10) The method according to claim 10, wherein the connection of the microfluid structure to the exterior of the microfluid component is made using hollow needles. ### Claim 12 (depends on 10) The method according to claim 10, wherein the connection of the microfluid structure to the exterior of the microfluid component is made after the sealing. ### Claim 13 (depends on 1) The method according to claim 1, wherein the microfluid component produced by the method includes the layer of polymer, (I) including the microfluid structure in a sealed state in which the microfluid structure is sealed by the sealing layers, and (II) with the at least one of (a) the semiconductor element, (b) the electronic component, (c) the optical component, and (d) the optoelectronic component being fitted onto the at least one of the polymer components. ### Claim 14 A microfluid component, comprising: a layer of polymer, wherein the layer includes a cavity and the polymer is formed as polymer structures within the cavity, wherein the polymer structures form a single microfluid channel that meanders through the polymer structures, and wherein the polymer structures are formed of at least one of (a) a plastic and (b) a plastic composite; and at least one of (a) a semiconductor element, (b) an electronic component, (c) an optical component, and (d) an optoelectronic component fitted on one or more of the polymer structures; wherein the microfluid channel is sealed by a respective sealing layer provided on each of two sides of the layer of polymer, the sealing layers facing away from each other. ### Claim 15 A method for producing a microfluid component, comprising: producing a layer of polymer, the polymer (I) being formed of at least one of (a) a plastic and (b) a plastic composite, and (II) forming polymer structures that are arranged to form a microfluid channel; fitting onto at least some of the polymer structures at least one of (a) a semiconductor element, (b) an electronic component, (c) an optical component, and (d) an optoelectronic component; and sealing the microfluid channel by providing a respective sealing layer on each of two sides of the layer of polymer, the sealing layers facing away from each other. ### Claim 16 A method for producing a microfluid component, comprising: producing a layer of polymer, the polymer being formed of at least one of (a) a plastic and (b) a plastic composite; without use of etching, structuring the polymer into a plurality of polymer components arranged to provide a microfluid structure within the layer of polymer; fitting at least one of the polymer components with at least one of (a) a semiconductor element, (b) an electronic component, (c) an optical component, and (d) an optoelectronic component; and sealing the microfluid structure by providing a respective sealing layer on each of two sides of the layer of polymer, the sealing layers facing away from each other. ### Claim 17 (depends on 16) The method according to claim 16, wherein the plurality of polymer components are formed by one of hot-stamping and injection molding. ### Claim 18 A microfluid component, comprising: a layer of polymer, the polymer (I) being formed of at least one of (a) a plastic and (b) a plastic composite, and (II) forming a plurality of polymer components arranged to provide in the layer of polymer a microfluid structure; and at least one of (a) a semiconductor element, (b) an electronic component, (c) an optical component, and (d) an optoelectronic component fitted onto at least one of the polymer components; wherein the microfluid structure is sealed by a sealing layer on each of two sides of the layer of polymer, the sealing layers facing away from each other.