Abstract: Embodiments described herein relate to the concept and designs of a polymer-based thermal ground plane. In accordance with one embodiment, a polymer is utilized as the material to fabricate the thermal ground plane. Other embodiments include am optimized wicking structure design utilizing two arrays of micropillars, use of lithography-based microfabrication of the TGP using copper/polymer processing, micro-posts, throttled releasing holes embedded in the micro-posts, atomic layer deposition (ALD) hydrophilic coating, throttled fluid charging structure and sealing method, defect-free ALD hermetic coating, and compliant structural design.

Abstract: A transfer substrate and a preparation method thereof, a display apparatus, and a transfer method for a light-emitting element are provided. The transfer substrate includes island structures spaced apart from each other, a conductive structure, and a connection portion. The island structures are configured to place to-be-transferred elements. The conductive structure is disposed on each island structure and configured to be electrically connected to the to-be-transferred elements. The connection portion is configured to connect at least two adjacent ones of the island structures. The connection portion is a separable connection structure, and is configured to separate, upon being actuated, the island structures connected by the connection portion. The conductive structure can meet the electrical connection needs of the light-emitting element, thereby reducing the dependence of the transferred light-emitting element on a wiring method in an array substrate.

Abstract: Provided is a detection apparatus and a detection method for light-emitting elements. The detection apparatus includes a substrate, first signal lines, and second signal lines, where the first signal lines are disposed on the substrate and extend along a first direction; the first signal lines are configured to transmit a first-type signal to to-be-detected elements; the second signal lines are disposed on the substrate and extend along a second direction; the first direction intersects the second direction; the second signal lines are configured to transmit a second-type signal to the to-be-detected elements; at least some adjacent first signal lines and at least some adjacent second signal lines jointly define at least one detection region on the substrate for accommodating the to-be-detected elements; and the same first signal line is configured to be electrically connected to a plurality of to-be-detected elements located in different detection regions.

Abstract: Embodiments described herein relate to the concept and designs of a polymer-based thermal ground plane. In accordance with one embodiment, a polymer is utilized as the material to fabricate the thermal ground plane. Other embodiments include am optimized wicking structure design utilizing two arrays of micropillars, use of lithography-based microfabrication of the TGP using copper/polymer processing, micro-posts, throttled releasing holes embedded in the micro-posts, atomic layer deposition (ALD) hydrophilic coating, throttled fluid charging structure and sealing method, defect-free ALD hermetic coating, and compliant structural design.

Abstract: Disclosed herein are techniques for transferring particles in a pattern. In one implementation, a particle-transferring system includes a first substrate comprising a first surface configured to support a plurality of particles in a non-uniform pattern, and a particle transfer unit configured to remove the plurality of particles from the first surface in response to the plurality of particles being within a first gap. The system also includes a second substrate configured to remove the plurality of particles from the particle transfer unit and secure the plurality of particles to the second surface in response to the plurality of particles being within a second gap. The particle transfer unit is configured to transfer the plurality of particles and maintain the non-uniform pattern regardless of the positions of the plurality of particles, which are not predefined to fit features of the particle transfer unit.

Abstract: Data representations are formed of a target substrate and a plurality of donor coupons that are incompletely filled with functional chips. The data representations are abstracted into a current state description of the target substrate and the donor coupons and input into a machine learning model that has been trained on previous mass transfer sequences. An optimal output of the machine learning model defines at least a selected one or more of the donor coupons and corresponding functional chips of the selected one or more of the donor coupons used to fill the vacancies. A parallel transfer of the corresponding functional chips is performed to fill the vacancies on the target substrate using the selected one or more of the donor coupons.

Abstract: A method utilizes a target substrate has an array of chips on a carrier with a plurality of vacancies and a plurality of donor coupons are incompletely filled with functional chips. A bounding box is defined that encompasses the vacancies on the target substrate. Outcomes are simulated by overlapping a representation of the bounding box over a representation of each of a plurality of donor coupons at a plurality of translational offsets on a substrate plane to determine matches. An optimal one of the outcomes is found at a selected one or more of the donor coupons corresponding one or more offsets. A parallel transfer of the matching functional chips fills the vacancies on the target substrate using the one or more selected donor coupons and corresponding one or more offsets.

Abstract: Disclosed herein are techniques for transferring particles in a pattern. In one implementation, a particle-transferring system includes a first substrate comprising a first surface configured to support a plurality of particles in a non-uniform pattern, and a particle transfer unit configured to remove the plurality of particles from the first surface in response to the plurality of particles being within a first gap. The system also includes a second substrate configured to remove the plurality of particles from the particle transfer unit and secure the plurality of particles to the second surface in response to the plurality of particles being within a second gap. The particle transfer unit is configured to transfer the plurality of particles and maintain the non-uniform pattern regardless of the positions of the plurality of particles, which are not predefined to fit features of the particle transfer unit.

Abstract: A device may include a temperature controlled chamber. The temperature controlled chamber may be coupled to a plurality of strengthening coated capillary tubes. The strengthening coated capillary tubes may support the temperature controlled chamber and provide thermal insulation to the temperature controlled chamber.

Abstract: A support layer is disposed between a first layer of first electrocaloric capacitors and the second layer of second electrocaloric capacitors. The support layer has thermally conductive vias. A voltage source is configured to apply a first voltage thereby applying a first electric field to the first electrocaloric capacitors and a second voltage thereby applying a second electric field to the second electrocaloric capacitors. The first and second electric fields are complementary such that when the first and second electric fields are applied, heat is transferred through the thermally conductive vias from the first electrocaloric capacitors to the second electrocaloric capacitors or from the second electrocaloric capacitors to the first electrocaloric capacitors.

Abstract: Disclosed herein are implementations of a particles-transferring system, particle transferring unit, and method of transferring particles in a pattern. In one implementation, a particles-transferring system includes a first substrate including a first surface to support particles in a pattern, particle transferring unit including an outer surface to be offset from the first surface by a first gap, and second substrate including a second surface to be offset from the outer surface by a second gap. The particle transferring unit removes the particles from the first surface in response to the particles being within the first gap, secures the particles in the pattern to the outer surface, and transports the particles in the pattern. The second substrate removes the particles in the pattern from the particle transferring unit in response to the particles being within the second gap. The particles are to be secured in the pattern to the second surface.

Abstract: A method utilizes a target substrate has an array of chips on a carrier with a plurality of vacancies and a plurality of donor coupons are incompletely filled with functional chips. A bounding box is defined that encompasses the vacancies on the target substrate. Outcomes are simulated by overlapping a representation of the bounding box over a representation of each of a plurality of donor coupons at a plurality of translational offsets on a substrate plane to determine matches. An optimal one of the outcomes is found at a selected one or more of the donor coupons corresponding one or more offsets. A parallel transfer of the matching functional chips fills the vacancies on the target substrate using the one or more selected donor coupons and corresponding one or more offsets.

Abstract: MicroLED chips are transferred from an epitaxy wafer to a first coupon substrate. The first coupon substrate has a first, soft adhesive layer that temporarily holds the microLED chips. Using a first transfer substrate, a subset of the microLED chips are transferred from the first coupon substrate to a second coupon substrate having a second, soft adhesive layer. A pattern of microLED chips are transferred from another substrate to the second coupon substrate via a second transfer substrate to fill vacancies in the subset of microLED chips. The transfer substrates are operable to hold and release pluralities of micro objects.

Abstract: Embodiments described herein relate to the concept and designs of a polymer-based thermal ground plane. In accordance with one embodiment, a polymer is utilized as the material to fabricate the thermal ground plane. Other embodiments include am optimized wicking structure design utilizing two arrays of micropillars, use of lithography-based microfabrication of the TGP using copper/polymer processing, micro-posts, throttled releasing holes embedded in the micro-posts, atomic layer deposition (ALD) hydrophilic coating, throttled fluid charging structure and sealing method, defect-free ALD hermetic coating, and compliant structural design.

Abstract: Transfer elements include an adhesion element having a higher Young's modulus at a lower temperature and a lower Young's modulus at a higher temperature. Heating elements are operable to change an operating temperature of each adhesion element in response to an input. A controller is coupled to provide the inputs to the heating elements to cause a change in temperature at least between the higher and lower temperature. The change in temperature causes the transfer elements to selectably hold objects to and release the objects in response to changes between the higher and lower Young's moduli of transfer elements.

Abstract: MicroLED chips are transferred from an epitaxy wafer to a first coupon substrate. The first coupon substrate has a first, soft adhesive layer that temporarily holds the microLED chips. Using a first transfer substrate, a subset of the microLED chips are transferred from the first coupon substrate to a second coupon substrate having a second, soft adhesive layer. A pattern of microLED chips are transferred from another substrate to the second coupon substrate via a second transfer substrate to fill vacancies in the subset of microLED chips. The transfer substrates are operable to hold and release pluralities of micro objects.

Abstract: Transfer elements include an adhesion element having a higher Young's modulus at a lower temperature and a lower Young's modulus at a higher temperature. Heating elements are operable to change an operating temperature of each adhesion element in response to an input. A controller is coupled to provide the inputs to the heating elements to cause a change in temperature at least between the higher and lower temperature.

Abstract: An apparatus includes a transfer substrate with two or more transfer elements. Each of the transfer elements includes an adhesion element having a first surface adhesion at a first temperature and a second surface adhesion at a second temperature. The second surface adhesion less than the first surface adhesion. Each transfer element has a thermal element operable to change a temperature of the adhesion element in response to an input. A controller is coupled to provide the inputs to the thermal elements of the two or more transfer elements to cause a subset of the transfer elements to selectably hold objects to and release the objects from the transfer substrate in response to changes between the first and second surface adhesion of the subset of the transfer elements.

Abstract: A device may include a temperature controlled chamber. The temperature controlled chamber may be coupled to a plurality of strengthening coated capillary tubes. The strengthening coated capillary tubes may support the temperature controlled chamber and provide thermal insulation to the temperature controlled chamber.

Abstract: A device may include a temperature controlled chamber. The temperature controlled chamber may be coupled to a plurality of strengthening coated capillary tubes. The strengthening coated capillary tubes may support the temperature controlled chamber and provide thermal insulation to the temperature controlled chamber.