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    • 61. 发明专利
    • SENSOR FOR FINE PARTICLE EXISTING IN LIQUID
    • JPS60102552A
    • 1985-06-06
    • JP20895683
    • 1983-11-09
    • HITACHI LTD
    • ISHINO MASAKAZU
    • G01N29/02G01N29/032
    • PURPOSE:To make it possible to detect fine particles contained in a liquid by enhancing electricity-sound converting efficiency, in a sensor for counting the number of fine particles such as dust or bacteria present in the liquid such as water, by allowing an ultrasonic vibrator to expose to a liquid flowing part. CONSTITUTION:An 1/4 wavelength plate 5 is applied to an ultrasonic vibrator 1 having a concave surface and a packing material 4 for absorbing an ultrasonic wave is further provided to the rear surface of said ultrasonic vibrator 1. In this case, the surface of the 1/4 wavelength plate 5 is pierced through the wall surface of an arranged pipe material 3 so as to be exposed to a liquid flowing part. When a sonic wave is emitted from the ultrasonic vibrator 1, it is directly emitted to the liquid flowing part without being attenuated in the material of said arranged pipe material 3 and reflected sounds from fine particles increase. Because the ultrasonic vibrator 1 coated with the 1/4 wavelength plate 5 is exposed to the liquid flowing part, the attenuation element of the reflected sonic wave is eliminated and sound-electricity converting efficiency becomes high and the detection of fine particles in a liquid is enabled.
    • 64. 发明专利
    • Solder bump formation equipment
    • 焊接成型设备
    • JP2007123656A
    • 2007-05-17
    • JP2005315622
    • 2005-10-31
    • Elpida Memory IncHitachi Ltdエルピーダメモリ株式会社株式会社日立製作所
    • TENMYO HIROYUKIISADA NAOYANAKA YASUHIROIKEDA HIROAKIISHINO MASAKAZU
    • H01L21/60
    • H01L24/81
    • PROBLEM TO BE SOLVED: To provide solder bump formation equipment where electroplating tin does not oxidize. SOLUTION: Following processes are carried out in a series of equipment. (1) In vacuum equipment, oxide on a surface electroplated with tin is removed by argon plasma. (2) The surface is heated in vacuum or inert gas (argon, nitrogen, helium, or a gas obtained by mixing hydrogen in the inert gas for suppressing oxidization). (3) An adhesive is applied on the surface in the inert gas (argon, nitrogen, helium, or a gas obtained by mixing hydrogen in the inert gas for suppressing oxidization). (4) The adhesive is semi-cured in the inert gas (argon, nitrogen, helium, or a gas obtained by mixing hydrogen in the inert gas for suppressing oxidization). COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供电镀锡不氧化的焊料凸块形成设备。

      解决方案:以下过程在一系列设备中进行。 (1)在真空设备中,通过氩等离子体除去用锡电镀的表面上的氧化物。 (2)将表面在真空或惰性气体(氩气,氮气,氦气或通过在惰性气体中混合氢以抑制氧化而获得的气体)加热。 (3)在惰性气体(氩,氮,氦或通过在惰性气体中混合氢气以抑制氧化而获得的气体)的表面上施加粘合剂。 (4)粘合剂在惰性气体(氩,氮,氦或通过在用于抑制氧化的惰性气体中混合氢气获得的气体)半固化。 版权所有(C)2007,JPO&INPIT