Integrated thin-film resistor with direct contact
    11.
    发明授权
    Integrated thin-film resistor with direct contact 有权
    集成薄膜电阻直接接触

    公开(公告)号:US07382055B2

    公开(公告)日:2008-06-03

    申请号:US11846595

    申请日:2007-08-29

    CPC classification number: H01L27/016

    Abstract: A BEOL thin-film resistor adapted for flexible integration rests on a first layer of ILD. The thickness of the first layer of ILD and the resistor thickness combine to match the nominal design thickness of vias in the layer of concern. A second layer of ILD matches the resistor thickness and is planarized to the top surface of the resistor. A third layer of ILD has a thickness equal to the nominal value of the interconnections on this layer. Dual damascene interconnection apertures and apertures for making contact with the resistor are formed simultaneously, with the etch stop upper cap layer in the resistor protecting the resistive layer while the vias in the dual damascene apertures are formed.

    Abstract translation: 适用于灵活集成的BEOL薄膜电阻依赖于第一层ILD。 ILD的第一层的厚度和电阻器厚度相结合,以匹配所涉及的层中的通孔的标称设计厚度。 第二层ILD匹配电阻器厚度,并平坦化到电阻器的顶表面。 ILD的第三层具有等于该层上互连的标称值的厚度。 同时形成用于与电阻器接触的双镶嵌互连孔和孔,电阻器中的蚀刻停止上盖层保护电阻层,同时形成双镶嵌孔中的通孔。

    POLYSILICON CONTAINING RESISTOR WITH ENHANCED SHEET RESISTANCE PRECISION AND METHOD FOR FABRICATION THEREOF
    12.
    发明申请
    POLYSILICON CONTAINING RESISTOR WITH ENHANCED SHEET RESISTANCE PRECISION AND METHOD FOR FABRICATION THEREOF 失效
    具有增强型电阻精度的多晶硅电容器及其制造方法

    公开(公告)号:US20080122574A1

    公开(公告)日:2008-05-29

    申请号:US11458494

    申请日:2006-07-19

    CPC classification number: H01L27/0802 H01L21/26513 H01L28/20

    Abstract: A polysilicon containing resistor includes: (1) a p dopant selected from the group consisting of boron and boron difluoride; and (2) an n dopant selected from the group consisting of arsenic and phosphorus. Each of the p dopant and the n dopant has a dopant concentration from about 1e18 to about 1e21 dopant atoms per cubic centimeter. A method for forming the polysilicon resistor uses corresponding implant doses from about 1e14 to about 1e16 dopant ions per square centimeter. The p dopant and the n dopant may be provided simultaneously or sequentially. The method provides certain polysilicon resistors with a sheet resistance percentage standard deviation of less than about 1.5%, for a polysilicon resistor having a sheet resistance from about 100 to about 5000 ohms per square.

    Abstract translation: 含多晶硅的电阻器包括:(1)选自硼和二氟化硼的p掺杂剂; 和(2)选自砷和磷的n掺杂剂。 p掺杂剂和n掺杂剂中的每一个掺杂剂的掺杂剂浓度从每立方厘米约1e18至约1e21掺杂剂原子。 用于形成多晶硅电阻器的方法使用相对于每平方厘米约1e14至约1e16掺杂剂离子的注入剂量。 p掺杂剂和n掺杂剂可以同时或顺序地提供。 对于具有约100至约5000欧姆/平方的薄层电阻的多晶硅电阻器,该方法提供某些多晶硅电阻器的薄层电阻百分比标准偏差小于约1.5%。

    Low tolerance polysilicon resistor for low temperature silicide processing
    14.
    发明授权
    Low tolerance polysilicon resistor for low temperature silicide processing 失效
    用于低温硅化物处理的低容差多晶硅电阻器

    公开(公告)号:US07285472B2

    公开(公告)日:2007-10-23

    申请号:US10905940

    申请日:2005-01-27

    CPC classification number: H01L21/26513 H01L27/0802 H01L28/20

    Abstract: Various methods of fabricating a high precision, silicon-containing resistor in which the resistor is formed as a discrete device integrated in complementary metal oxide semiconductor (CMOS) processing utilizing low temperature silicidation are provided. In some embodiments, the Si-containing layer is implanted with a high dose of ions prior to activation. The activation can be performed by the deposition of a protective dielectric layer, or a separate activation anneal. In another embodiment, a highly doped in-situ Si-containing layer is used thus eliminating the need for implanting into the Si-containing layer.

    Abstract translation: 提供制造高精度含硅电阻器的各种方法,其中电阻器形成为集成在利用低温硅化物的互补金属氧化物半导体(CMOS)处理中的分立器件)。 在一些实施方案中,在活化之前,用高剂量的离子注入含Si层。 激活可以通过沉积保护性介电层或单独的激活退火来进行。 在另一个实施方案中,使用高掺杂的原位含Si层,因此不需要植入含Si层。

    Tri-metal and dual-metal stacked inductors
    15.
    发明授权
    Tri-metal and dual-metal stacked inductors 有权
    三金属和双金属堆叠电感器

    公开(公告)号:US07129561B2

    公开(公告)日:2006-10-31

    申请号:US10707065

    申请日:2003-11-19

    Abstract: A high performance inductor which has a relatively low sheet resistance that can be integrated within a semiconductor interconnect structure and can be used in RF applications, including RF CMOS and SiGe technologies, is provided. The inductor is either a dual-metal inductor including a first layer of metal which serves as an upper metal wire in the semiconductor structure and a second layer of metal located directly on top of the first layer of metal, or a tri metal inductor, which includes a third layer of metal located directly on top of the second layer of metal. No vias are located between the various metal layers of the inventive inductor.

    Abstract translation: 提供了具有相对低的薄层电阻的高性能电感器,其可以集成在半导体互连结构内并且可以用于RF应用中,包括RF CMOS和SiGe技术。 电感器是双金属电感器,其包括在半导体结构中用作上部金属线的第一金属层和位于第一金属层的顶部的第二金属层或三金属电感器,其中, 包括直接位于第二金属层顶部的第三层金属。 在本发明的电感器的各种金属层之间没有通孔。

    High performance varactor diodes
    17.
    发明授权

    公开(公告)号:US06803269B2

    公开(公告)日:2004-10-12

    申请号:US10064754

    申请日:2002-08-14

    CPC classification number: H01L29/93 H01L27/0808 Y10S438/979

    Abstract: A varactor diode having a first electrode comprising a well region of a first conductivity type in a substrate, a second electrode comprising a first plurality of diffusion regions of a second conductivity type abutting isolation regions disposed in said well region, and a second plurality of diffusion regions of said first conductivity type extending laterally from portions of said first plurality of diffusion regions not adjacent said isolation regions and having a dopant concentration greater than that of said first plurality of diffusion regions. The varactor has a tunability of at least approximately 3.5 in a range of applied voltage between approximately 0V to 3V, an approximately linear change in capacitive value in a range of applied voltage between approximately 0V to 2V, and a Q of at least approximately 100 at a circuit operating frequency of approximately 2 GHz.

    Optimized reachthrough implant for simultaneously forming an MOS capacitor

    公开(公告)号:US06399458B1

    公开(公告)日:2002-06-04

    申请号:US09400676

    申请日:1999-09-21

    Abstract: A method of forming a diffusion region in a silicon substrate having low-resistance, acceptable defect density, reliability and process control comprising the steps of: (a) subjecting a silicon substrate to a first ion implantation step, said first ion implantation step being conducted under conditions such that a region of amorphized Si is formed in said silicon substrate; (b) subjecting said silicon substrate containing said region of amorphized Si to a second ion implantation step, said second ion implantation step being carried out by implanting a dopant ion into said silicon substrate under conditions such that the peak of implant of said dopant ion is within the region of amorphized Si; and (c) annealing said silicon substrate under conditions such that said region of amorphized Si is re-crystallized thereby forming a diffusion region in said silicon substrate is provided.

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