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    • 4. 发明申请
    • Apparatus and method for optical interference fringe based integrated circuit processing
    • 用于光干涉条纹集成电路处理的装置和方法
    • US20060188797A1
    • 2006-08-24
    • US11362240
    • 2006-02-24
    • Erwan RoyChun-Cheng TsaoTheodore Lundquist
    • Erwan RoyChun-Cheng TsaoTheodore Lundquist
    • G03C5/00A61N5/00G21G5/00
    • H01J37/3174B23K26/03B23K26/032B82Y10/00B82Y40/00
    • An apparatus and method for processing an integrated circuit employing optical interference fringes. During processing, light is directed on the integrated circuit and based upon the detection of interference fringes, further processing may be controlled. One implementation involves charged particle beam processing of an integrated circuit as function of detection of interference fringes. A charged particle beam trench milling operation is performed in or on the substrate of an integrated circuit. Light is directed on the floor of the trench. When the floor approaches the underlying circuit structures, some light is reflected from the floor of the trench and some light penetrates the substrate and is reflected off the underlying circuit structures. Interference fringes may be formed from the constructive or destructive interference between the light reflected from the floor and the light from the circuit structures. Processing may be controlled as function of the detection of interference fringes.
    • 一种使用光学干涉条纹处理集成电路的装置和方法。 在处理期间,光被引导到集成电路上,并且基于干涉条纹的检测,可以控制进一步的处理。 一种实施方案涉及集成电路的带电粒子束处理作为干涉条纹检测的功能。 在集成电路的衬底中或其上执行带电粒子束沟槽铣削操作。 光照在沟槽的地板上。 当地板接近下面的电路结构时,一些光从沟槽的底部反射,并且一些光穿透衬底并从下面的电路结构反射。 干涉条纹可以由从地板反射的光与来自电路结构的光之间的建构性或破坏性干扰形成。 作为检测干涉条纹的功能,可以控制处理。
    • 6. 发明授权
    • Method for global die thinning and polishing of flip-chip packaged integrated circuits
    • 用于倒装芯片封装集成电路的全局模具稀疏和抛光的方法
    • US06672947B2
    • 2004-01-06
    • US09924736
    • 2001-08-07
    • Chun-Cheng TsaoJohn Valliant
    • Chun-Cheng TsaoJohn Valliant
    • B24B100
    • B24B49/12B24B7/228B24B37/042
    • A reliable, inexpensive “back side” thinning process, capable of globally thinning an integrated circuit die to a target thickness of 10 microns, and maintaining a yield of at least 80%, for chip repair and/or failure analysis of the packaged die. The flip-chip packaged die is exposed at its backside and mounted on a lapping machine with the backside exposed. The thickness of the die is measured at at least five locations on the die. The lapping machine grinds the exposed surface of the die to a thickness somewhat greater than the target thickness. The exposed surface of the die is polished. The thickness of the die is again measured optically with high accuracy. Based on the thickness data collected, appropriate machine operating parameters for further grinding and polishing of the exposed surface are determined. Further grinding and polishing are performed. These steps are repeated until the target thickness is reached.
    • 一种可靠,廉价的“背面”稀释工艺,能够将集成电路裸片全局变薄至目标厚度为10微米,并保持至少80%的产量,用于封装芯片的芯片修复和/或故障分析。 倒装芯片封装的裸片在其背面露出并安装在背面暴露的研磨机上。 模具的厚度在模具上的至少五个位置处被测量。 研磨机将模具的暴露表面研磨到稍大于目标厚度的厚度。 模具的暴露表面被抛光。 再次以高精度光学测量模具的厚度。 基于收集的厚度数据,确定用于进一步研磨和抛光暴露表面的合适的机器操作参数。 进行进一步研磨和抛光。 重复这些步骤,直到达到目标厚度。
    • 10. 发明授权
    • Apparatus and method for optical interference fringe based integrated circuit processing
    • 用于光干涉条纹集成电路处理的装置和方法
    • US07697146B2
    • 2010-04-13
    • US11362240
    • 2006-02-24
    • Erwan Le RoyChun-Cheng TsaoTheodore R. Lundquist
    • Erwan Le RoyChun-Cheng TsaoTheodore R. Lundquist
    • G01B11/02
    • H01J37/3174B23K26/03B23K26/032B82Y10/00B82Y40/00
    • An apparatus and method for processing an integrated circuit employing optical interference fringes. During processing, light is directed on the integrated circuit and based upon the detection of interference fringes, further processing may be controlled. One implementation involves charged particle beam processing of an integrated circuit as function of detection of interference fringes. A charged particle beam trench milling operation is performed in or on the substrate of an integrated circuit. Light is directed on the floor of the trench. When the floor approaches the underlying circuit structures, some light is reflected from the floor of the trench and some light penetrates the substrate and is reflected off the underlying circuit structures. Interference fringes may be formed from the constructive or destructive interference between the light reflected from the floor and the light from the circuit structures. Processing may be controlled as function of the detection of interference fringes.
    • 一种使用光学干涉条纹处理集成电路的装置和方法。 在处理期间,光被引导到集成电路上,并且基于干涉条纹的检测,可以控制进一步的处理。 一种实施方案涉及集成电路的带电粒子束处理作为干涉条纹检测的功能。 在集成电路的衬底中或其上执行带电粒子束沟槽铣削操作。 光照在沟槽的地板上。 当地板接近下面的电路结构时,一些光从沟槽的底部反射,并且一些光穿透衬底并从下面的电路结构反射。 干涉条纹可以由从地板反射的光与来自电路结构的光之间的建构性或破坏性干扰形成。 作为检测干涉条纹的功能,可以控制处理。