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    • 1. 发明公开
    • 연마 패드 및 방법
    • 抛光垫和抛光方法
    • KR1020050032021A
    • 2005-04-06
    • KR1020047006155
    • 2003-04-18
    • 니혼 미크로 코팅 가부시끼 가이샤
    • 오오노히사또모사또오사또루오오사와가즈나리
    • H01L21/304
    • B24B3/24B24B9/065B24B37/042B24D3/26B24D3/28B24D13/02H01L21/3043H01L2223/54493
    • A polishing pad (10) and a polishing method capable of stably polishing the notch of a wafer for a long time without generating dust and without damaging the notch during the polishing, the polishing pad (10) comprising a disk-like pad (11) formed of a synthetic resin such as a foam resin and holding plates (12) fixed to both faces of the pad (11) so that the peripheral edge portion of the pad (11) can be exposed, wherein the cross sectional shape of the peripheral edge portion of the pad (11) is formed so as to be fitted into the notch (21), the pad (11) is formed of a foam body such as a foam urethane, the average air bubble diameter of the foam body comes within the range of 10 to 500 mum, and the hardness thereof comes within the range of 25 to 95° in Shore hardness scale A, whereby the notch (21) can be polished by pressingly fitting the peripheral edge portion of the pad (11) into the notch (21) while rotating the polishing pad (10) and feeding slurry to a contact portion between the peripheral edge portion of the pad (11) and the notch (21) through a nozzle (14).
    • 一种抛光垫(10)和抛光方法,其能够长时间稳定地抛光晶片的凹口而不产生灰尘并且在抛光期间不损坏凹口,所述抛光垫(10)包括盘状垫(11) 由诸如泡沫树脂的合成树脂和固定到焊盘(11)的两个表面的保持板(12)形成,使得焊盘(11)的周边部分可以被暴露,其中周边的横截面形状 衬垫(11)的边缘部分形成为嵌合在凹口(21)中,衬垫(11)由诸如泡沫聚氨酯的泡沫体形成,泡沫体的平均气泡直径在其内 10至500μm的范围,其硬度在肖氏硬度标度A中在25至95°的范围内,从而可以通过将垫(11)的周边部分压配合而进行抛光 所述切口(21)同时旋转所述抛光垫(10)并将浆料供给到所述接触部分 在垫(11)的周缘部分和凹口(21)之间通过喷嘴(14)。
    • 8. 发明公开
    • 연마 패드
    • 抛光垫及其制造方法
    • KR1020050042752A
    • 2005-05-10
    • KR1020047020057
    • 2004-04-08
    • 니혼 미크로 코팅 가부시끼 가이샤
    • 오오노히사또모이즈미도시히로사이또미쯔루나가미네다꾸야밀러클로우톤고다까이찌로
    • B24B37/26B24B37/24H01L21/304B24B37/00
    • B24B37/205
    • A polishing pad is disclosed which enables to stably polish the surface of an object smooth and flat by applying the polishing technique for determining when polishing is completed. A method for producing such a polishing pad is also disclosed. A polishing pad (10) is composed of a light-transmitting pad having a polishing surface (11a) on the front side. By forming a recess (12) on the back side (11b) of the light-transmitting pad (11), the light transmittance can be locally changed. The light-transmitting pad (11) has a light transmittance of not less than 10%, preferably of not less than 30%, to at least a light having a wavelength within the region of 350-900 nm. The light-transmitting pad (11) has a light transmittance of not less than 10% preferably over the light wavelength region of 370-900 nm, more preferably over the light wavelength region of 390-900 nm. The light- transmitting pad (11) has a light transmittance of not less than 30% preferably over the light wavelength region of 400-900 nm, more preferably over the light wavelength region of 450-900 nm.
    • 公开了一种抛光垫,其通过应用用于确定抛光完成时的抛光技术,能够使物体的表面光滑平坦地被抛光。 还公开了一种用于制造这种抛光垫的方法。 抛光垫(10)由在前侧具有研磨面(11a)的透光垫构成。 通过在透光垫(11)的背面(11b)上形成凹部(12),可以局部地改变透光率。 透光垫(11)对波长在350-900nm范围内的至少一种光具有不小于10%,优选不小于30%的透光率。 透光垫(11)的透光率优选在370-900nm的光波长区域以上,更优选在390-900nm的光波长区域以上的10%以上的透光率。 发光垫(11)的透光率优选在400-900nm的光波长区域以上,更优选在450-900nm的光波长区域以上30%以上的透光率。