Abstract: A laser welding system includes a free-spacing beam delivery laser head having a linear array of at least two laser diodes, each of the diodes generating a laser beam of a predetermined wavelength and spectral width. The laser beams are adapted to weld a workpiece having a first component and at least one other component to be welded to the first component, the first component substantially transmissive to the wavelength, the other component substantially absorptive of the wavelength. A lens is spaced from the linear array, and directs the laser beams to at least one other lens spaced from the lens. The other lens shapes the laser beams to a predetermined width and length, and focuses the laser beams to substantially the same location, thereby forming a continuous line of laser energy being in a plane containing the workpiece, and being substantially orthogonal to the workpiece translation direction.

Abstract: Various embodiments of the present invention provide systems and methods for signal offset cancellation. For example, a method for error cancellation is disclosed. The method includes: receiving an input signal that includes a second order error component; applying a transfer function to the processed input to reduce the second order error component; and providing an output signal that is the result of applying the transfer function to the input signal.

Abstract: Disclosed is a process for absorbing methylacrolein, characterized in that it absorbs methylacrolein by an absorbent comprising an ionic liquid. The absorbent can absorb methylacrolein effectively, and it is easy to be separated from methylacrolein, regenerated and recycled. It is a green absorbent. The technique is a green methylacrolein absorbing and separating technique.

Abstract: A nano-structured surface includes a substrate layer, and a plurality of immobilized nanoparticles on the substrate layer. The surface has a water contact angle of greater than 145 degrees. An in situ method of fabricating a nano-structured surface includes treating a substrate layer with a mixture that includes a silica precursor, a water-soluble catalyst, and a low-surface-energy compound to form a treated substrate layer, and curing said treated substrate layer in the atmosphere of ammonia to form a nano-structured surface on the substrate layer.

Abstract: A laser welding system includes a free-spacing beam delivery laser head having a linear array of at least two laser diodes. Each of the diodes generates a laser beam of a predetermined wavelength and spectral width, the laser beams adapted to weld a workpiece having a first component and at least one other component to be welded to the first component, the first component being substantially transmissive to the wavelength, the other component being substantially absorptive of the wavelength. A lens is spaced a predetermined distance from each of the laser diodes, each of the lenses adapted to focus the respective laser beam into a focused laser beam segment, thereby forming a continuous line of laser energy from a substantially serial combination of each focused laser beam segment. The continuous line of laser energy is in a plane containing the workpiece, and is substantially orthogonal to the workpiece translation direction.

Abstract: A laser welding system includes a free-spacing beam delivery laser head having a linear array of at least two laser diodes. Each of the diodes generates a laser beam of a predetermined wavelength and spectral width, the laser beams adapted to weld a workpiece having a first component and at least one other component to be welded to the first component, the first component being substantially transmissive to the wavelength, the other component being substantially absorptive of the wavelength. A lens is spaced a predetermined distance from each of the laser diodes, each of the lenses adapted to focus the respective laser beam into a focused laser beam segment, thereby forming a continuous line of laser energy from a substantially serial combination of each focused laser beam segment. The continuous line of laser energy is in a plane containing the workpiece, and is substantially orthogonal to the workpiece translation direction.

Abstract: A method is provided for depositing a patterning material onto an optically transparent substrate by the use of a laser beam. A solid layer of a patterning material is placed adjacent to a receiving surface of the substrate. A laser beam is directed at an incident angle between 0 and 90° relative to the receiving surface. The laser beam is transmitted through the substrate and onto the solid layer to cause patterning material from the solid layer to deposit onto the receiving surface of the substrate.

Abstract: A method for laser patterning of a passive matrix organic light emitting diode device having a multilayered structure comprising a substrate and at least one light emitting organic layer disposed between two electrode layers, the method comprising the step of: irradiating areas of the multilayered structure with a laser beam in a predetermined pattern thereby causing ablation of the multilayered structure in the irradiated areas; wherein, the electrode layers and the light emitting organic layer or layers are patterned substantially simultaneously during the same irradiation operation. Also described are a passive matrix organic light emitting diode device patterned by the method of the present invention and a display comprising the same.

Abstract: Disclosed is a method of forming a metal trace on a substrate. The method includes inkjet printing a chemical ink comprising a metal containing compound on the substrate surface to form an ink drop thereon, and heating the substrate to a suitable elevated temperature. The ink drop undergoes at least one of decomposition and reduction due to the substrate temperature to form a metal on the substrate in a controlled atmosphere.

Abstract: A laser welding system includes a free-spacing beam delivery laser head having a linear array of at least two laser diodes, each of the diodes generating a laser beam of a predetermined wavelength and spectral width. The laser beams are adapted to weld a workpiece having a first component and at least one other component to be welded to the first component, the first component substantially transmissive to the wavelength, the other component substantially absorptive of the wavelength. A lens is spaced from the linear array, and directs the laser beams to at least one other lens spaced from the lens. The other lens shapes the laser beams to a predetermined width and length, and focuses the laser beams to substantially the same location, thereby forming a continuous line of laser energy being in a plane containing the workpiece, and being substantially orthogonal to the workpiece translation direction.

Abstract: A laser welding system includes a free-spacing beam delivery laser head having a linear array of at least two laser diodes. Each of the diodes generates a laser beam of a predetermined wavelength and spectral width, the laser beams adapted to weld a workpiece having a first component and at least one other component to be welded to the first component, the first component being substantially transmissive to the wavelength, the other component being substantially absorptive of the wavelength. A lens is spaced a predetermined distance from each of the laser diodes, each of the lenses adapted to focus the respective laser beam into a focused laser beam segment, thereby forming a continuous line of laser energy from a substantially serial combination of each focused laser beam segment. The continuous line of laser energy is in a plane containing the workpiece, and is substantially orthogonal to the workpiece translation direction.

Abstract: A method is provided for depositing a patterning material onto an optically transparent substrate by the use of a laser beam. A solid layer of a patterning material is placed adjacent to a receiving surface of the substrate. A laser beam is directed at an incident angle between 0 and 90° relative to the receiving surface. The laser beam is transmitted through the substrate and onto the solid layer to cause patterning material from the solid layer to deposit onto the receiving surface of the substrate.

Abstract: A method of forming a desired conductive trace layout on a substrate, comprising the steps of: printing an organometallic compound onto the substrate in the desired conductive trace layout using a printer, the organometallic compound substantially transparent to electromagnetic radiation which is at least in part absorbed by the substrate; heating the substrate near or at an interface area of the organometallic compound and the substrate using the electromagnetic radiation; and, depositing at least part of the conductive trace on the substrate near or at the heated interface area as a result of the heating step.

Abstract: A formulation able to be printed onto a substrate for use in forming a desired conductive trace layout on the substrate, the formulation including at least one organometallic compound dissolved in at least one organic solvent, whereby metal from the organometallic compound is deposited on the substrate when the organometallic compound is heated.

Abstract: A method for laser patterning of a passive matrix organic light emitting diode device having a multilayered structure comprising a substrate and at least one light emitting organic layer disposed between two electrode layers, the method comprising the step of: irradiating areas of the multilayered structure with a laser beam in a predetermined pattern thereby causing ablation of the multilayered structure in the irradiated areas; wherein, the electrode layers and the light emitting organic layer or layers are patterned substantially simultaneously during the same irradiation operation. Also described are a passive matrix organic light emitting diode device patterned by the method of the present invention and a display comprising the same.

Abstract: A captive screw (80) is provided for attaching two sheets together. The captive screw includes a screw (40) and a cap (50). The screw includes a head (41), a threaded shank (43), and a flange (42) located between the head and the shank. The cap includes a cavity (51) and a skirt portion (53). The shank forms a plurality of ribs (52) on an underside thereof. The flange forms a plurality of vertical ridges (44) therearound. The cap and the screw are combined, with the head and the flange tightly fitted in the cavity. The shank extends out of the skirt portion, with cylindrical space defined therebetween. A rod portion of a complementary engaging rivet can then be received in the space.

Abstract: The invention provides an apparatus and method for inspecting an array of electronic components. The apparatus comprises a scanning device adapted to capture images of at least one surface of each of the respective components, whereby to inspect said surface. The scanning device may be a line scanning device.

Abstract: A method and apparatus for the removal of mold flash from an IC device using a non-thermal laser ablation method. Ablation is achieved under conditions in which the mold flash is converted to plasma under short laser pulses which do not give sufficient time or energy for significant thermal processes to occur. As a result, the heat sink underneath the mold flash is prevented from heating up due to lack of heat transfer, thereby protecting the heat sink from heat damages. According to one feature of the invention, a mask is provided to protect the molded packaging of the IC device from the laser beam. The mask has at least one hole which corresponds to the heat sink of the device wherethrough the laser beam can pass. According to another feature of the invention, a large beam diameter is provided to increase the efficiency of the deflashing process.