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    • 61. 发明授权
    • Method and apparatus using an infrared laser based optical probe for
measuring electric fields directly from active regions in an integrated
circuit
    • 使用基于红外激光的光学探针的方法和装置,用于直接从集成电路中的有源区测量电场
    • US5872360A
    • 1999-02-16
    • US766149
    • 1996-12-12
    • Mario J. PanicciaValluri R. Rao
    • Mario J. PanicciaValluri R. Rao
    • G01R31/309G01R31/28
    • G01R31/309
    • A method and an apparatus for detecting an electric field in the active regions of an integrated circuit disposed in a semiconductor. In one embodiment, a laser beam is operated at a wavelength near the band gap of a semiconductor such as silicon. The laser beam is focused onto a P-N junction, such as for example the drain of an MOS transistor, through the back side of the semiconductor substrate. As a result of photo-absorption, the laser beam is partially absorbed in the P-N junction. When an external electric field is impressed on the P-N junction, such as when for example the drain of the transistor switches, the degree of photo-absorption will be modulated in accordance with the modulation in the electric field due to the phenomenon of electro-absorption. Electro-absorption also leads to electro-refraction which leads to a modulation in the reflection coefficient for the light reflected from the P-N junction/oxide interface. The laser beam passes through the P-N junction region, reflects off the oxide interface and metal behind the junction, and returns back through the P-N junction and back out of the silicon surface. Any amplitude modulation in this reflected laser beam is detected with an optical detection system, and is attributed to a corresponding modulation in the electric field in the P-N junction due to the combined effects of electro-absorption and electro-refraction.
    • 一种用于检测设置在半导体中的集成电路的有源区域中的电场的方法和装置。 在一个实施例中,激光束以接近诸如硅之类的半导体的带隙的波长工作。 激光束通过半导体衬底的背面聚焦到P-N结,例如MOS晶体管的漏极。 作为光吸收的结果,激光束被部分地吸收在P-N结中。 当在PN结上施加外部电场时,例如当例如晶体管开关的漏极时,由于电吸收的现象,将根据电场中的调制来调制光吸收的程度 。 电吸收也导致电折射,这导致从P-N结/氧化物界面反射的光的反射系数的调制。 激光束穿过P-N结区域,从结点后面的氧化物界面和金属反射出来,并通过P-N结返回并返回硅表面。 这种反射激光束中的任何幅度调制都用光学检测系统检测,并且归因于由于电吸收和电折射的组合效应而在P-N结中的电场中的相应调制。
    • 66. 发明授权
    • Three dimensional semiconductor based optical switching device
    • 基于三维半导体的光开关器件
    • US07437026B2
    • 2008-10-14
    • US10947633
    • 2004-09-22
    • Remus NicolaescuMario J. Paniccia
    • Remus NicolaescuMario J. Paniccia
    • G02F1/295
    • G02F1/025
    • A device with optical switching between multiple layers of a semiconductor die is disclosed. In one aspect of the present invention, the disclosed apparatus includes a first semiconductor material layer of a semiconductor die. The first semiconductor material layer has a first optical waveguide. A second semiconductor material layer is also included in the semiconductor die. The second semiconductor material layer has a second optical waveguide. An insulating layer is disposed between the first and second semiconductor material layers such that there is an evanescent coupling between the first and second semiconductor material layers. There are modulated charge layers proximate to the insulating layer such that a coupling length of the evanescent coupling is controlled in response to the modulated charge layers.
    • 公开了一种在半导体管芯的多层之间进行光切换的器件。 在本发明的一个方面,所公开的装置包括半导体管芯的第一半导体材料层。 第一半导体材料层具有第一光波导。 第二半导体材料层也包括在半导体管芯中。 第二半导体材料层具有第二光波导。 绝缘层设置在第一和第二半导体材料层之间,使得在第一和第二半导体材料层之间存在ev逝耦合。 存在靠近绝缘层的调制电荷层,使得响应于调制的电荷层来控制ev逝耦合的耦合长度。
    • 69. 发明授权
    • Method and apparatus for isolating an active region in an optical waveguide
    • 用于隔离光波导中的有源区的方法和装置
    • US07142761B2
    • 2006-11-28
    • US10731559
    • 2003-12-09
    • Ansheng LiuMario J. Paniccia
    • Ansheng LiuMario J. Paniccia
    • G02B6/10
    • G02F1/025G02F2201/063
    • An apparatus and method for modulating a phase of optical beam in an electrically isolated active region of an optical waveguide. In one embodiment, an apparatus according to embodiments of the present invention includes an active region of an optical waveguide disposed in a semiconductor layer. The active region includes a p doped region and an n doped region. The apparatus further includes an insulating region disposed in the semiconductor layer surrounding the active region in the semiconductor layer. The insulating region electrically isolates the active region of the optical waveguide from a passive region of the optical waveguide disposed in the semiconductor layer. An optical beam is to be directed through the optical waveguide and through the active region to be phase shifted in response to a modulated charge region in the active region in the optical waveguide.
    • 一种用于调制光波导的电隔离有源区中的光束相位的装置和方法。 在一个实施例中,根据本发明的实施例的装置包括设置在半导体层中的光波导的有源区。 有源区包括p掺杂区和n掺杂区。 该装置还包括设置在半导体层中的绝缘区域,该半导体层围绕半导体层中的有源区域。 绝缘区域将光波导的有源区域与设置在半导体层中的光波导的无源区域电隔离。 光束将被引导通过光波导并且通过有源区域响应于光波导中的有源区域中的调制的电荷区域被相移。