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    • 3. 发明授权
    • Soft proton isolation process for an acoustic charge transport
integrated circuit
    • 用于声电荷传输集成电路的软质子隔离工艺
    • US5358877A
    • 1994-10-25
    • US676965
    • 1991-03-29
    • Michael J. HoskinsMartin J. Brophy
    • Michael J. HoskinsMartin J. Brophy
    • G11C5/00H01L21/76H03H9/02H01L21/265
    • H03H9/02976G11C5/005H01L21/7605Y10S148/084Y10S148/128
    • A method for electrically isolating an integrated circuit element in an acoustic charge transport device comprises the steps of providing a semi-insulating substrate; providing an epitaxial layer with a thickness and carrier concentration appropriate for an ACT device; providing a circuit element semiconductor layer in the epitaxial layer for construction of an integrated circuit element, the layer having a thickness substantially less than the thickness of the epitaxial layer and having a carrier concentration substantially greater than the ACT epitaxial layer; laterally isolating the semiconductor layer from other regions of the ACT epitaxial layer; and bombarding the semiconductor layer with protons at a dose sufficient to provide significant vertical electrical isolation from underlying regions of the epitaxial layer semi-insulating with minimal detrimental effect on the electrical characteristics of the semiconductor layer.
    • 一种用于电隔离声电荷输送装置中的集成电路元件的方法包括以下步骤:提供半绝缘衬底; 提供具有适合于ACT器件的厚度和载流子浓度的外延层; 在用于构建集成电路元件的外延层中提供电路元件半导体层,该层具有基本上小于外延层的厚度并具有基本上大于ACT外延层的载流子浓度的厚度; 将半导体层与ACT外延层的其它区域横向隔离; 并以足够的剂量用质子轰击半导体层,以便对半导体层的电特性具有最小的不利影响,从而提供与半绝缘的下层区域的显着的垂直电隔离。
    • 4. 发明授权
    • Back-side hydrogenation technique for defect passivation in silicon
solar cells
    • 硅太阳能电池缺陷钝化的背面加氢技术
    • US5304509A
    • 1994-04-19
    • US934025
    • 1992-08-24
    • Bhushan L. Sopori
    • Bhushan L. Sopori
    • H01L21/30H01L31/18H01L21/26
    • H01L21/3003H01L31/1868Y02E10/50Y02P70/521Y10S136/29Y10S148/125Y10S148/128Y10S148/153
    • A two-step back-side hydrogenation process includes the steps of first bombarding the back side of the silicon substrate with hydrogen ions with intensities and for a time sufficient to implant enough hydrogen atoms into the silicon substrate to potentially passivate substantially all of the defects and impurities in the silicon substrate, and then illuminating the silicon substrate with electromagnetic radiation to activate the implanted hydrogen, so that it can passivate the defects and impurities in the substrate. The illumination step also annihilates the hydrogen-induced defects. The illumination step is carried out according to a two-stage illumination schedule, the first or low-power stage of which subjects the substrate to electromagnetic radiation that has sufficient intensity to activate the implanted hydrogen, yet not drive the hydrogen from the substrate. The second or high-power illumination stage subjects the substrate to higher intensity electromagnetic radiation, which is sufficient to annihilate the hydrogen-induced defects and sinter/alloy the metal contacts.
    • 两步背面氢化方法包括以下步骤:首先用具有强度的氢离子轰击硅衬底的背面,并且足以将足够的氢原子注入到硅衬底中以潜在地钝化所有缺陷, 硅衬底中的杂质,然后用​​电磁辐射照射硅衬底以激活注入的氢,使得其可以钝化衬底中的缺陷和杂质。 照明步骤还消除了氢诱发的缺陷。 照明步骤根据两阶段照明时间表执行,其第一或低功率阶段使基板对具有足够强度的电磁辐射进行激活,以激活注入的氢,但不从基板驱动氢。 第二或大功率照明阶段使基板受到较高强度的电磁辐射,这足以消除氢诱导的缺陷并烧结/合金金属触点。
    • 9. 发明授权
    • Closely-spaced VCSEL and photodetector for applications requiring their independent operation
    • 紧密间隔的VCSEL和光电检测器,可用于需要独立操作的应用
    • US06835992B1
    • 2004-12-28
    • US09484348
    • 2000-01-18
    • Stanley E. SwirhunJeffrey W. Scott
    • Stanley E. SwirhunJeffrey W. Scott
    • H01L3106
    • H01S5/0264H01S5/02208H01S5/02244H01S5/02248H01S5/02284H01S5/0262H01S5/06226H01S5/183H01S5/18388Y10S148/095Y10S148/128
    • A monolthically integrated VCSEL and photodetector, and a method of manufacturing same, are disclosed for applications where the VCSEL and photodetector require separate operation such as duplex serial data communications applications. A first embodiment integrates a VCSEL with an MSM photodetector on a semi-insulating substrate. A second embodiment builds the layers of a p-i-n photodiode on top of layers forming a VCSEL using a standard VCSEL process. The p-i-n layers are etched away in areas where VCSELs are to be formed and left where the photodetectors are to be formed. The VCSELs underlying the photodetectors are inoperable, and serve to recirculate photons back into the photodetector not initially absorbed. The transmit and receive pairs are packaged in a single package for interface to multifiber ferrules. The distance between the devices is precisely defined photolithographically, thereby making alignment easier.
    • 公开了一种单分布式VCSEL和光电检测器及其制造方法,其中VCSEL和光电探测器需要单独的操作,例如双工串行数据通信应用。 第一实施例将VCSEL与半绝缘衬底上的MSM光电检测器集成。 第二实施例使用标准VCSEL工艺在形成VCSEL的层的顶部上构建p-i-n光电二极管的层。 在要形成VCSEL的区域中蚀刻掉p-i-n层,并留在要形成光电探测器的位置。 光电探测器下面的VCSEL是不可操作的,并且用于将光子再循环回到初始被吸收的光电探测器中。 发送和接收对被封装在单个封装中,用于与多光纤套圈的接口。 设备之间的距离是光刻的精确定义,从而使对准更容易。
    • 10. 发明授权
    • Method for fabricating solar cell
    • 制造太阳能电池的方法
    • US5510272A
    • 1996-04-23
    • US352118
    • 1994-12-01
    • Hiroaki MorikawaHisao Kumabe
    • Hiroaki MorikawaHisao Kumabe
    • H01L31/04H01L31/0352H01L31/18
    • H01L31/1892H01L31/035281H01L31/1804H01L31/1868Y02E10/547Y02P70/521Y10S136/29Y10S148/125Y10S148/128Y10S148/135Y10S148/153Y10S438/958Y10S438/977
    • In a method of producing a solar cell, a photovoltaic thin semiconductor crystalline film is formed on an underlying substrate and hydrogen passivated throughout the film thickness direction of the photovoltaic film whereby a high efficiency solar cell is obtained. In addition, since the passivation process is performed before forming a rear surface electrode on the thin semiconductor crystalline film, the passivation process is not limited by the rear surface electrode. Thereby, a solar cell having a higher energy conversion efficiency is obtained. The passivation process is performed by exposing the thin semiconductor crystalline film to a hydrogen ion ambient having a low acceleration energy, below 2 KeV, or to a plasma ambient. Therefore, the uniformity of the passivation process at a wafer surface is improved and a large area wafer can be efficient processed. Furthermore, the passivation process can be performed to a plurality of solar cells having the thin semiconductor crystalline films and arranged in a module.
    • 在制造太阳能电池的方法中,在下层基板上形成光电薄膜半导体结晶膜,在光电膜的整个膜厚方向上氢钝化,得到高效率的太阳能电池。 此外,由于在薄半导体结晶膜上形成后表面电极之前进行钝化处理,所以钝化处理不受背面电极的限制。 从而获得具有较高能量转换效率的太阳能电池。 通过将薄半导体晶体膜暴露于具有低加速能量,低于2KeV的氢离子环境或者等离子体环境来进行钝化处理。 因此,晶片表面的钝化处理的均匀性得到改善,可以有效地处理大面积晶片。 此外,可以对具有薄半导体晶体膜并且布置在模块中的多个太阳能电池执行钝化处理。