摘要:
A flexible printed circuit may be provided with an integrated heat and pressure spreading layer. The heat and pressure spreading layer may be configured to uniformly spread heat and pressure from a bonding tool across a portion of the flexible printed circuit during bonding of the flexible printed circuit to additional circuitry. During manufacturing of the flexible printed circuit, a sheet of heat and pressure spreading material may be attached to a sheet of flexible printed circuitry and the heat and pressure spreading material and the sheet of flexible printed circuitry may be die cut to form multiple flexible printed circuits each with a heat and pressure spreading layer. An electronic device may be provided with a flexible printed circuit with a heat and pressure spreading layer coupled to a component such as a display.
摘要:
A flexible printed circuit may be provided with an integrated heat and pressure spreading layer. The heat and pressure spreading layer may be configured to uniformly spread heat and pressure from a bonding tool across a portion of the flexible printed circuit during bonding of the flexible printed circuit to additional circuitry. During manufacturing of the flexible printed circuit, a sheet of heat and pressure spreading material may be attached to a sheet of flexible printed circuitry and the heat and pressure spreading material and the sheet of flexible printed circuitry may be die cut to form multiple flexible printed circuits each with a heat and pressure spreading layer. An electronic device may be provided with a flexible printed circuit with a heat and pressure spreading layer coupled to a component such as a display.
摘要:
Electronic devices may include assemblies of structures such as electronic device assemblies connected using light-cured liquid adhesive such as ultraviolet-light-cured adhesive. Light guide structures may be mounted in the assemblies. During manufacture of an electronic device, ultraviolet light may be injected into a light guide structure to cure the light-cured liquid adhesive. A light guide structure may include portions that prevent escape of ultraviolet light and portions that allow ultraviolet light to escape into the light-cured liquid adhesive. Light guide structures may include masked portions, rigid support members, and one or more openings. Openings in a light guide structure may allow the light-cured liquid adhesive to be injected into an assembly through the openings. An adhesive applicator may be used to apply the adhesive to portions of the assembly. An external light source may be used to inject light that cures the adhesive into the light guide structures.
摘要:
Delamination of a laminated multilayer stack is provided by generating a layer-specific energy distribution in the stack during delamination. A localized energy transferrer can generate localized heating, cooling heating, cooling, or other form of energy absorption or transmission, in a bonding layer of a multilayer stack. Localized energy transfer can include thermal energy transfer, such as heating and/or cooling, acoustic energy transfer, such as applying ultrasonic energy, electromagnetic energy transfer, such as applying laser light, directed microwaves, etc. Localized energy transfer can generate a layer-specific energy distribution that can weaken the bonding layer while reducing damage to other layers of the stack.
摘要:
Delamination of a laminated multilayer stack is provided by generating a layer-specific energy distribution in the stack during delamination. A localized energy transferrer can generate localized heating, cooling heating, cooling, or other form of energy absorption or transmission, in a bonding layer of a multilayer stack. Localized energy transfer can include thermal energy transfer, such as heating and/or cooling, acoustic energy transfer, such as applying ultrasonic energy, electromagnetic energy transfer, such as applying laser light, directed microwaves, etc. Localized energy transfer can generate a layer-specific energy distribution that can weaken the bonding layer while reducing damage to other layers of the stack.
摘要:
A system for controlling a boundary of spreading liquid adhesive on a surface is disclosed. The system includes one or more ultra-violet (UV) sources configurable to emit UV light onto the liquid adhesive; and a control circuit coupled to the one or more UV sources and configured to control the one or more UV sources to selectively apply the UV light at selected locations on the liquid adhesive to cure the adhesive and prevent its further spread at those locations.
摘要:
A method of forming a curved touch surface is disclosed. According to an embodiment, the method includes depositing a touch sensor pattern on a flexible substrate; and curving the flexible substrate, using a chuck surface supporting the flexible substrate, to conform to a shape of a curved cover surface. Then, the curved flexible substrate can be laminated or otherwise adhered to the cover surface. The flexible substrate can be a glass substrate greater than 200 μm in thickness, and can be reduced to a desired thickness below 200 μm after the touch sensor pattern is deposited thereon. The flexible substrate can be curved by supporting the flexible substrate on the chuck surface such that the flexible substrate conforms to a shape of the chuck surface, or forcing the flexible substrate against the cover surface, such that the flexible substrate conforms to the shape of the curved cover surface.
摘要:
Methods and apparatus for protecting the thin films during chemical and/or thermal edge strengthening treatment. In one embodiment, a portion of each individual sheet is laminated. Pairs of sheets are then sealed together such that the thin film sides face inward to form a thin film sandwich. In some embodiments, the sandwich in then immersed in a chemical strengthener. In other embodiments, a localized treatment is applied to the unstrengthened edges.
摘要:
Electronic devices may include assemblies of structures such as electronic device assemblies connected using light-cured liquid adhesive such as ultraviolet-light-cured adhesive. Light guide structures may be mounted in the assemblies. During manufacture of an electronic device, ultraviolet light may be injected into a light guide structure to cure the light-cured liquid adhesive. A light guide structure may include portions that prevent escape of ultraviolet light and portions that allow ultraviolet light to escape into the light-cured liquid adhesive. Light guide structures may include masked portions, rigid support members, and one or more openings. Openings in a light guide structure may allow the light-cured liquid adhesive to be injected into an assembly through the openings. An adhesive applicator may be used to apply the adhesive to portions of the assembly. An external light source may be used to inject light that cures the adhesive into the light guide structures.
摘要:
Methods for liquid adhesive lamination for precision adhesive control are provided. Precision liquid adhesive control can be obtained by first patterning liquid adhesive in a thin pre-coat layer on a substrate. A second adhesive layer can then be patterned on top of the pre-coat layer. When the second substrate is pressed onto the first substrate, the second substrate first comes into contact with the second adhesive layer. The adhesive can then be spread uniformly across the two substrates without forming voids. Alternatively, a single liquid adhesive layer can be formed in a three dimensional gradient pattern.