Abstract:
The present invention teaches how greater solder ball height can be achieved without the need to sacrifice areal density. The mold in which the solder is formed, is created in two steps. In a first exposure, a negative photoresist (preferably DFR) is patterned to form a conventional cylindrical mold. However, exposure and development time are adjusted in such a way that a layer of unexposed and undeveloped resist of reduced thickness remains covering the floor of the mold. This residual resist layer is given a second exposure and, after development, forms an annular insert in the bottom of the first mold. After the mold has been filled with solder (either through electroplating or by using solder paste) it is removed, the result being a solder bump made up of two contiguous coaxial cylinders the upper one having the larger diameter. After remelt, bumps having this shape form oblate spheroids rather than spheres.
Abstract:
This is generally directed to systems and methods for noise reduction in high dynamic range (“HDR”) imaging systems. In some embodiments, multiple images of the same scene can be captured, where each of the images is exposed for a different amount of time. An HDR image may be created by suitably combining the images. However, the signal-to-noise ratio (“SNR”) curve of the resulting HDR image can have discontinuities in sections of the SNR curve corresponding to shifts between different exposure times. Accordingly, in some embodiments, a noise model for the HDR image can be created that takes into account these discontinuities in the SNR curve. For example, a noise model can be created that smoothes the discontinuities of the SNR curve into a continuous function. This noise model may then be used with a Bayer Filter or any other suitable noise filter to remove noise from the HDR image.
Abstract:
A loudspeaker structure for an electronic device, comprising: a housing defining a frame portion, the frame portion comprises a front sound chamber and aback sound chamber; a loudspeaker secured within the frame portion; a speaker cover made of rubber materials and secured within the frame portion to seal the front sound chamber; a speaker seat made of rubber materials and secured within the frame portion to seal the back sound chamber; and a circuit board secured above the frame portion. The front sound chamber and the back sound chamber have comfortable tightness and ensure the sounds transmitting. Thereby, high quality sound is available.
Abstract:
Disclosed herein is a thermoplastic cellulosic composition for preparing a cellulose-based masterbatch and/or a cellulose-based fiber with a networked structure. In one example, the thermoplastic cellulosic composition includes an esterified cellulose present in a range of about 80 wt % to about 95 wt %, polyethylene glycol present in a range of about 4.5 wt % to about 12 wt %, a tri-functional cross-linking agent present in a range of about 0.01 wt % to about 3 wt %, an initiator present in a range of about 0.01 wt % to about 0.15 wt %, and a dispersing agent present in a range of about 0.01 wt % to about 5 wt %.
Abstract:
A method comprises supplying a dopant gas in an arc chamber of an ion source. A dilutant is supplied to dilute the dopant gas. The dilutant comprises about 98.5 wt. % xenon and about 1.5 wt. % hydrogen. An ion beam is generated from the diluted dopant gas using the ion source.
Abstract:
Disclosed herein is a method for preparing a near infrared shielding masterbatch. The method includes the steps of preparing and compounding a composition, and then pelletizing the compounded composition. The composition includes at least one metallic ionic compound powder in an amount of about 1-25 wt %, a cross-linking agent in an amount of about 0.1-5 wt %, a thermoplastic polymer in an amount of about 67-98.7 wt %, an initiator in an amount of about 0.1-1 wt %, and a dispersing agent in an amount of about 0.1-2 wt %.
Abstract:
Disclosed herein is a composition for preparing a non-dripping flame retarding masterbatch. The flame retarding masterbatch includes a fire retardant in an amount of about 0.1-15.0 wt %, a crosslinking agent in an amount of about 0.1-1.5 wt %, a thermoplastic polymer in an amount of about 76.5-99.5 wt %, a crosslinking initiator in an amount of about 0.01-2.0 wt %, and a dispersing agent in an amount of about 0.1-5.0 wt % in the composition.
Abstract:
Disclosed herein is a composition for preparing a halogen-free flame retarding masterbatch with low phosphorous content. The flame retarding masterbatch includes a phosphorus-containing flame retardant in an amount of about 0.1-6 wt %, a sulfur-containing flame retardant in an amount of about 0.1-5 wt %, a tertiary or quaternary ammonium salt having tri- or tetra-functional groups in an amount of about 0.1-5 wt %, a thermoplastic polymer in an amount of about 79-99.6 wt %, and a dispersing agent in an amount of about 0.1-5 wt % in the composition.
Abstract:
A cup includes a cup body and an elastic cover. The elastic cover includes an elastic strip having a first end mounted on the cup body and a cover body mounted on a second end of the elastic strip and removably mounted on the top of the cup body. The cover body has a mounting plate abutting the top of the cup body. The mounting plate has an inner wall provided with a plurality of pressing bosses pressing the top of the cup body. Thus, the cup body is compressed inward, the top of the cup body is released from the pressing bosses, and the cover body is moved outwardly relative to the cup body by the elastic action of the elastic strip so that the cover body is detached from the top of the cup body automatically.