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424results about How to "Eliminate residue" patented technology

New Flux Composition and Process For Use Thereof

The invention relates to a composition of matter comprising a soldering flux, wherein the flux consists essentially of a combination of a fluxing agent and a solvent, and wherein the fluxing agent comprises a keto acid such as levulinic acid or acetylbutyric acid. The flux may also comprises an ester acid, or comprises a mixture of the keto acid with the ester acid. The solvent comprises a mixture of a tacky solvent with a non-tacky solvent. The invention also relates to a process comprising soldering at least two surfaces together, each of which comprises a metal area to which solder can adhere by employing the following steps in any order: applying solder to at least one of the metal areas, aligning the metal areas so that they are superimposed over one another, heating at least one of the areas to a temperature that comprises at least the melting temperature of the solder. The last step comprises joining the superimposed areas to one another. The process employs the flux composition operatively associated with the solder, and in one embodiment the invention comprises a mixture of the flux composition with powdered solder. In another embodiment, the process comprises IMS, C4 and C4NP processes and the solder comprises a lead free solder. The invention also comprises a product produced by the foregoing process or processes.
Owner:TAIWAN SEMICON MFG CO LTD

High-grade privacy smart phone and method for protecting private information thereof

Disclosed are a high-grade privacy smart phone and a method for protecting private information of the high-grade privacy smart phone. The smart phone is composed of a radio frequency processor, a base-band processor, a first application processor, a second application processor, a display controller, a display module and the like. Wireless communication operation is carried out on the base-band processor. A first operating system in the first application processor is mainly used for processing multimedia application and the like with low privacy requirements. A second operating system in the second application processor is mainly used for processing personal issues with high privacy requirements. The first operating system and the second operating system are isolated from each other and form subsystems. Meanwhile, through hardware setting, third-party software can not be installed on the second operating system after the second operating system leaves a factory, or even, firmware upgrade can not be carried out, and therefore the second operating system becomes a closed system. According to the protection method, the first application processor and the second application processor which are independent of each other are used for processing the private personal issues and the multimedia application respectively.
Owner:叶鼎

New flux composition and process for use thereof

InactiveUS20080124568A1Minimize and substantially eliminate flux residueProcess can be minimizedWelding/cutting media/materialsThin material handlingLevulinic acidSoldering
The invention relates to a composition of matter comprising a soldering flux, wherein the flux consists essentially of a combination of a fluxing agent and a solvent, and wherein the fluxing agent comprises a keto acid such as levulinic acid or acetylbutyric acid. The flux may also comprises an ester acid, or comprises a mixture of the keto acid with the ester acid. The solvent comprises a mixture of a tacky solvent with a non-tacky solvent. The invention also relates to a process comprising soldering at least two surfaces together, each of which comprises a metal area to which solder can adhere by employing the following steps in any order: applying solder to at least one of the metal areas, aligning the metal areas so that they are superimposed over one another, heating at least one of the areas to a temperature that comprises at least the melting temperature of the solder. The last step comprises joining the superimposed areas to one another. The process employs the flux composition operatively associated with the solder, and in one embodiment the invention comprises a mixture of the flux composition with powdered solder. In another embodiment, the process comprises IMS, C4 and C4NP processes and the solder comprises a lead free solder. The invention also comprises a product produced by the foregoing process or processes.
Owner:GLOBALFOUNDRIES INC

Polyurethane synthetic leather cleaning production process based on direct coating method

The invention provides a polyurethane synthetic leather cleaning production process based on a direct coating method. The process comprises the steps of firstly spraying mixed double-component solvent-free polyurethane a nonwoven fabric or a knitted fabric through a reciprocating way of a spraying head by utilizing a double-spraying head material feeding machine, scrapping through a double-cutter scrapping machine so as to form a film, then drying and ageing the film through an oven, and ironing through a passing type roller ironing machine, thus forming a bottom layer having a plurality of holes and a flat surface on the nonwoven fabric or the knitted fabric; then coating waterborne polyurethane size on the upper face of the polyurethane bottom layer in a rolling coating way by utilizing a rolling coating machine, wherein the waterborne polyurethane size contains waterborne polyurethane, thickener and flatting agent; then drying through an oven so as to form a flat and smooth waterborne polyurethane surface layer; and finally embossing the upper face of the coating through a passing type roller type embossing machine, and levelly coating aqueous surface treating agent through a rotating type coating machine, thus obtaining the finished product of synthetic leather.
Owner:HENAN YONGHE PLASTIC

Industrialized iconological breeding method of young shrimps having high stress resistance and high disease resistance

The invention relates to the technical field of marine product seed breeding and in particular relates to an industrialized iconological breeding method of young shrimps having high stress resistance and high disease resistance. The industrialized iconological breeding method comprises the steps of the construction and sterilization of an isolating breeding workshop and a standard breeding pool, the integrated treatment of breeding water, the healthy cultivation and reproduction of prawn parents, the throwing-in of healthy nauplius, the preparation of a breeding bait, the biological control and management of breeding water quality, bait feeding management, control of physical factors such as temperature and light, and the like. Due to biological control on the water environment of the indoor breeding pool and effective control on water temperature, illumination, transparency, dissolved oxygen, salinity, PH value, harmful substances, pests and the like, the breeding environmental conditions are optimized, the drug use, the feeding capacity and the drainage are reduced; in addition, the stress resistance and the disease resistance of the young prawns are enhanced, the quality and the survival rate of the young prawns are increased. The industrialized iconological breeding method of young prawns having high stress resistance and high disease resistance is used for solving the key technical problems of prawn breeding; a high-efficiency environment-friendly breeding mode is provided to promote efficient sustainable development of the prawn breeding industry.
Owner:GUANGDONG JINYANG BIOTECHNOLOGY CO LTD
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