{
  "patent_number": "US 12734520",
  "country": "US",
  "title": "A Special Sticky Layer for Tiny Liquid Channels in Flow Cells",
  "original_title": "Interposer with first and second adhesive layers",
  "summary": "This patent describes a specific middle layer, called an interposer, for devices that handle tiny amounts of liquid (flow cells), featuring a black plastic base and two methyl acrylic adhesive layers, all pierced by microfluidic channels.",
  "what_it_does": "This patent details an interposer designed for a flow cell, which is a device used to move and analyze very small amounts of liquid. The interposer has a base layer made of black polyethylene terephthalate (PET), which is a type of plastic. On both the top and bottom surfaces of this base layer, there are adhesive layers, each made from methyl acrylic adhesive. Crucially, a set of tiny channels, called microfluidic channels, are cut through all three layers: the black PET base and both adhesive layers. This design allows the interposer to precisely guide liquids within the flow cell, for example, in a DNA sequencing machine.",
  "what_it_does_not_cover": [
    "Does not cover interposers where the base layer is made of materials other than black polyethylene terephthalate (PET).",
    "Does not cover interposers using adhesive layers made from materials other than methyl acrylic adhesive.",
    "Does not cover interposers with only a single microfluidic channel, as the abstract specifies 'a plurality' of channels.",
    "Does not cover interposers where the microfluidic channels do not extend through all three layers: the base layer and both adhesive layers.",
    "Does not cover interposers intended for applications other than flow cells."
  ],
  "filed": "2024-07-31",
  "granted": "2026-09-15",
  "expires": null,
  "status": "active",
  "holder": null,
  "holder_url": null,
  "inventors": [],
  "times_cited": 0,
  "tags": [
    "biotech",
    "medical_devices",
    "materials",
    "semiconductors"
  ],
  "abstract": "An interposer for a flow cell comprises a base layer having a first surface and a second surface opposite the first surface. The base layer comprises black polyethylene terephthalate (PET). A first adhesive layer is disposed on the first surface of the base layer. The first adhesive layer comprises methyl acrylic adhesive. A second adhesive layer is disposed on the second surface of the base layer. The second adhesive layer comprises methyl acrylic adhesive. A plurality of microfluidic channels extends through each of the base layer, the first adhesive layer, and the second adhesive layer.",
  "url": "https://patentbrief.org/patent/us/12734520/interposer-with-first-and-second-adhesive-layers",
  "markdown_url": "https://patentbrief.org/patent/us/12734520/interposer-with-first-and-second-adhesive-layers/md",
  "google_patents_url": "https://patents.google.com/patent/US12734520",
  "relatedPatents": [
    {
      "patentNumber": "9055681",
      "countryCode": "US",
      "title": "Attaching Flexible Circuits with Light Sensors to a Chip",
      "url": "https://patentbrief.org/patent/us/9055681/method-for-attaching-a-flexible-structure-to-a-device-and-a-device-having-a-flex"
    },
    {
      "patentNumber": "12733849",
      "countryCode": "US",
      "title": "How Suction Controls Fluid Collection for Medical Tests",
      "url": "https://patentbrief.org/patent/us/12733849/fluid-control-devices-and-methods-of-using-the-same"
    },
    {
      "patentNumber": "12733848",
      "countryCode": "US",
      "title": "Device for Collecting and Separating Bodily Fluids Using Pressure",
      "url": "https://patentbrief.org/patent/us/12733848/fluid-control-devices-and-methods-of-using-the-same-12733848"
    },
    {
      "patentNumber": "11150423",
      "countryCode": "US",
      "title": "How to Precisely Connect Light Chips to Optical Fibers",
      "url": "https://patentbrief.org/patent/us/11150423/optical-and-thermal-interface-for-photonic-integrated-circuits"
    },
    {
      "patentNumber": "20130230274",
      "countryCode": "US",
      "title": "Flexible Silicon Chips That Send Data Using Light",
      "url": "https://patentbrief.org/patent/us/20130230274/photonic-flexible-interconnect"
    }
  ]
}