Abstract:
Electrical components such as integrated circuits and other components may be mounted on a substrate such as a printed circuit substrate. A molded plastic cap may cover the components and a portion of the printed circuit substrate to form a packaged electrical device. Metal structures such as springs, posts, and other metal members may be insert molded within the plastic cap. A metal layer on the surface of the cap may be patterned to from electromagnetic shielding, signal paths, contact pads, sensor electrodes, antennas, and other structures. Multiple substrates each with a respective set of mounted electrical components may be joined using a flexible printed circuit. The flexible printed circuit may be covered with a rigid cap portion or an elastomeric material or may be left uncovered.
Abstract:
A method is for making an electronic device and includes forming an interconnect layer stack on a sacrificial substrate and having a plurality of patterned electrical conductor layers, and a dielectric layer between adjacent patterned electrical conductor layers. The method also includes laminating and electrically joining through an intermetallic bond a liquid crystal polymer (LCP) substrate to the interconnect layer stack on a side thereof opposite the sacrificial substrate. The method further includes removing the sacrificial substrate to expose a lowermost patterned electrical conductor layer, and electrically coupling at least one first device to the lowermost patterned electrical conductor layer.
Abstract:
A compliant middle member to be used between encapsulated stacked circuit boards contained in an enclosure. The compliant middle member absorbing expansion forces from an encapsulant experiencing thermal expansion, thereby diverting and reducing the expansion forces exerted upon the electrical components.
Abstract:
Polymer materials are useful as electrode array bodies for neural stimulation. They are particularly useful for retinal stimulation to create artificial vision, cochlear stimulation to create artificial hearing, and cortical stimulation, and many related purposes. The pressure applied against the retina, or other neural tissue, by an electrode array is critical. Too little pressure causes increased electrical resistance, along with electric field dispersion. Too much pressure may block blood flow. Common flexible circuit fabrication techniques generally require that a flexible circuit electrode array be made flat. Since neural tissue is almost never flat, a flat array will necessarily apply uneven pressure. Further, the edges of a flexible circuit polymer array may be sharp and cut the delicate neural tissue. It is advantageous that the array edges not contact tissue.
Abstract:
A method is for making an electronic device and includes forming an interconnect layer stack on a sacrificial substrate and having a plurality of patterned electrical conductor layers, and a dielectric layer between adjacent patterned electrical conductor layers. The method also includes laminating and electrically joining through an intermetallic bond a liquid crystal polymer (LCP) substrate to the interconnect layer stack on a side thereof opposite the sacrificial substrate. The method further includes removing the sacrificial substrate to expose a lowermost patterned electrical conductor layer, and electrically coupling at least one first device to the lowermost patterned electrical conductor layer.
Abstract:
Buffer structures are provided that can be used to reduce a strain in a conformable electronic system that includes compliant components in electrical communication with more rigid device components. The buffer structures are disposed on, or at least partially embedded in, the conformable electronic system such that the buffer structures overlap with at least a portion of a junction region between a compliant component and a more rigid device component. The buffer structure can have a higher value of Young's modulus than an encapsulant of the conformable electronic system.
Abstract:
A display device includes a display panel, a circuit board, and a conductive element. The circuit board is adjacent to the display panel and electrically connected to the display panel. The circuit board has at least a conductive pattern configured at a ground zone, and the conductive pattern has a plurality of conductive portions spaced apart each other. The quantities of the conductive portions respectively arranged along a first direction and a second direction are plural, and the first direction is substantially perpendicular to the second direction. The conductive element is disposed on the conductive pattern, and the conductive element is electrically connected to the conductive portions.
Abstract:
An electronic patch includes a foldable circuit layer that includes a foldable network that includes comprising: a plurality of electronic modules comprising a plurality of electronic components, and flexible straps that connect the plurality of electronic modules, wherein the flexible straps comprise conductive circuit that are conductively connected with the plurality of electronic components in the plurality of electronic modules. Neighboring electronic modules can undulate in opposite directions normal to the foldable circuit layer. The electronic patch also includes an elastic layer that encloses the foldable circuit layer.
Abstract:
A method and apparatus for forming a conductor on an uneven two-dimensional (2-D) or three-dimensional (3-D) surface is described. An amount of conductive material needed to form a conductor between two points on a surface of an object is determined. The determined amount of conductive material is deposited on a substrate. The substrate with the deposited conductive material is applied to the object to form a conductor between the two points on the surface of the object. The conductive material and substrate may be stretchable. The conductive material may be deposited by an inkjet printer or an embedded 3-D printer. The substrate with the deposited conductive material may be applied to the object by laminating the substrate with the deposited conductive material to the object.
Abstract:
The present disclosure relates to a resin composition, which serves as an insulation layer of a laminate for a printed circuit board while exhibiting adhesiveness to a metal base layer, the resin composition including: a rubber-modified epoxy resin; an epoxy resin; an inorganic filler; and a curing agent.