Input and output port circuit
    1.
    发明授权
    Input and output port circuit 有权
    输入输出端口电路

    公开(公告)号:US06774697B2

    公开(公告)日:2004-08-10

    申请号:US10325929

    申请日:2002-12-23

    IPC分类号: H03L500

    CPC分类号: H03K19/0016

    摘要: The present invention relates to an input and output port circuit. The input and output port circuit comprises a signal register for storing output signals, an input/output register at which an input/output control signal for determining an input/output direction is stored, a plurality of control registers, a power supply switch circuit for selectively supplying a low voltage or a high voltage depending on a power mode control signal, a signal direction control circuit for determining the direction of the signal depending on a value of the signal register and a value of the input/output register, an output control circuit driven depending on the value of the control register and an output of the signal direction control circuit, and an output driving circuit for outputting the low voltage, the high voltage or the ground value depending on an output of the signal direction control circuit and an output of the output control circuit. The high voltage and the low voltage can be simultaneously driven using only a single output driving circuit and the single output driving circuit is constructed in multiple stages and is selectively driven by the output control register. Therefore, the power consumption can be saved.

    摘要翻译: 本发明涉及输入和输出端口电路。 输入输出端口电路包括用于存储输出信号的信号寄存器,存储用于确定输入/输出方向的输入/输出控制信号的输入/输出寄存器,多个控制寄存器,用于 选择性地根据功率模式控制信号提供低电压或高电压;信号方向控制电路,用于根据信号寄存器的值确定信号的方向,以及输入/输出寄存器的值,输出控制 电路根据控制寄存器的值和信号方向控制电路的输出驱动,以及输出驱动电路,用于根据信号方向控制电路的输出输出低电压,高电压或接地值,以及 输出控制电路的输出。 高电压和低电压可以使用单个输出驱动电路同时驱动,单输出驱动电路构成多级,由输出控制寄存器有选择地驱动。 因此,可以节省功耗。

    Method for fabricating a high-voltage high-power integrated circuit device
    2.
    发明授权
    Method for fabricating a high-voltage high-power integrated circuit device 有权
    高压大功率集成电路器件的制造方法

    公开(公告)号:US06855581B2

    公开(公告)日:2005-02-15

    申请号:US10153975

    申请日:2002-05-23

    IPC分类号: H01L21/76 H01L21/84 H01L27/12

    CPC分类号: H01L27/1203 H01L21/84

    摘要: The present invention relates to a method of fabricating a high-voltage high-power integrated circuit device using a substrate of a SOI structure in which an insulating film and a silicon layer are sequentially stacked on a silicon substrate. The method comprising the steps of sequentially forming an oxide film and a photoresist film on the silicon layer and then performing a photolithography process using a trench mask to pattern the photoresist film; patterning the oxide film using the patterned photoresist film as a mask and then removing the photoresist film remained after the patterning; etching the silicon layer using the patterned oxide film as a mask until the insulating film is exposed to form a trench; forming a nitride film on the entire surface including the trench, performing an annealing process and depositing polysilicon on the entire surface so that the trench is buried; and sequentially removing the polysilicon and the nitride film until the silicon layer is exposed to flatten the surface, thus forming a device isolating film for electrical isolation between devices within the trench. Therefore, the present invention can effectively reduce the isolation area of the trench between the high-voltage high-power device and the logic CMOS device and can easily control the concentration of a deep well.

    摘要翻译: 本发明涉及使用其中绝缘膜和硅层依次层叠在硅衬底上的SOI结构的衬底的高压大功率集成电路器件的制造方法。 该方法包括以下步骤:在硅层上依次形成氧化物膜和光致抗蚀剂膜,然后使用沟槽掩模进行光刻工艺以对光刻胶膜进行图案化; 使用图案化的光致抗蚀剂膜作为掩模来图案化氧化膜,然后在图案化之后除去光致抗蚀剂膜; 使用所述图案化氧化膜作为掩模蚀刻所述硅层,直到所述绝缘膜暴露以形成沟槽; 在包括沟槽的整个表面上形成氮化物膜,执行退火处理并在整个表面上沉积多晶硅,使得沟槽被埋置; 并且顺序地去除多晶硅和氮化物膜,直到硅层暴露以使表面变平,从而形成用于在沟槽内的器件之间进行电隔离的器件隔离膜。 因此,本发明能够有效地降低高压大功率器件与逻辑CMOS器件之间的沟槽的隔离面积,能够容易地控制深井的浓度。

    Method of fabricating TDMOS device using self-align technique
    3.
    发明授权
    Method of fabricating TDMOS device using self-align technique 有权
    使用自对准技术制造TDMOS器件的方法

    公开(公告)号:US06534365B2

    公开(公告)日:2003-03-18

    申请号:US09726910

    申请日:2000-11-29

    IPC分类号: H01L21336

    摘要: A method of fabricating a vertical TDMOS power device using sidewall spacers and a self-align technique and a TDMOS power device of the same. The TDMOS is fabricated using only 3 masks and a source is formed using the self-align technique to embody a highly integrated trench formation. During the process, ion implantation of high concentration into the bottom of the trench makes a thick oxide film grow on the bottom and the corner of the gate, so that electrical characteristic, specifically leakage current and breakdown voltage of the device can be improved. Also, process steps can be much decreased to lower process cost, high integration is possible, and reliability of the device can be improved.

    摘要翻译: 使用侧壁间隔物和自对准技术制造垂直TDMOS功率器件的方法以及使用其的TDMOS功率器件。 TDMOS仅使用3个掩模制造,并且使用自对准技术形成源以体现高度集成的沟槽形成。 在此过程中,高浓度离子注入沟槽的底部使得厚的氧化膜在栅极的底部和拐角处生长,从而可以提高器件的电气特性,特别是漏电流和击穿电压。 此外,可以大大降低工艺步骤以降低工艺成本,可以实现高集成度,并且可以提高器件的可靠性。

    Method for fabricating power semiconductor device having trench gate structure

    公开(公告)号:US06852597B2

    公开(公告)日:2005-02-08

    申请号:US10071127

    申请日:2002-02-08

    摘要: A method for fabricating a power semiconductor device having a trench gate structure is provided. An epitaxial layer of a first conductivity type having a low concentration and a body region of a second conductivity type are sequentially formed on a semiconductor substrate of the first conductivity type having a high concentration. An oxide layer pattern is formed on the body region. A first trench is formed using the oxide layer pattern as an etching mask to perforate a predetermined portion of the body region having a first thickness. A body contact region of the second conductivity type having a high concentration is formed to surround the first trench by impurity ion implantation using the oxide layer pattern as an ion implantation mask. First spacer layers are formed to cover the sidewalls of the first trench and the sidewalls of the oxide layer pattern. A second trench is formed using the oxide layer pattern and the first spacer layers as etching masks to perforate a predetermined portion of the body region having a second thickness greater than the first thickness. A source region of the first conductivity type having a high concentration is formed to surround the second trench by impurity ion implantation using the oxide layer pattern and the first spacer layers as ion implantation masks. Second spacer layers are formed to cover the sidewalls of the second trench and the sidewalls of the first spacer layers. A third trench is formed to a predetermined depth of the epitaxial layer using the oxide layer pattern, the first spacer layers, and the second spacer layers as etching masks. A gate insulating layer is formed in the third trench. A gate conductive pattern is formed in the gate insulating layer. An oxide layer is formed on the gate conductive layer pattern. The first and second spacer layers are removed. A first metal electrode layer is formed to be electrically connected to the source region and the body contact region. A second metal electrode layer is formed to be electrically connected to the gate conductive layer pattern. A third metal electrode layer is formed to be electrically connected to the semiconductor substrate.

    Method for fabricating high density trench gate type power device
    5.
    发明授权
    Method for fabricating high density trench gate type power device 有权
    高密度沟槽栅型功率器件的制造方法

    公开(公告)号:US06211018B1

    公开(公告)日:2001-04-03

    申请号:US09475281

    申请日:1999-12-30

    IPC分类号: H01L21336

    CPC分类号: H01L29/66727 H01L29/66348

    摘要: A semiconductor technique is disclosed. Particularly a low voltage high current power device for use in a lithium ion secondary battery protecting circuit, a DC-DC converter and a motor is disclosed. Further, a method for fabricating a high density trench gate type power device is disclosed. That is, in the present invention, a trench gate mask is used for forming the well and/or source, and for this purpose, a side wall spacer is introduced. In this manner, the well and/or source is defined by using the trench gate mask, and therefore, 1 or 2 masking processes are skipped unlike the conventional process in which the well mask and the source mask are separately used. The decrease in the use of the masking process decreases the mask align errors, and therefore, the realization of a high density is rendered possible. Consequently, the on-resistance which is an important factor for the power device can be lowered.

    摘要翻译: 公开了半导体技术。 特别地,公开了一种用于锂离子二次电池保护电路,DC-DC转换器和电动机的低压大电流功率器件。 此外,公开了一种制造高密度沟槽栅型功率器件的方法。 也就是说,在本发明中,沟槽栅极掩模用于形成阱和/或源,为此,引入了侧壁间隔物。 以这种方式,通过使用沟槽栅极掩模来定义阱和/或源,因此与分开使用阱掩模和源掩模的常规工艺不同,跳过1或2个屏蔽处理。 掩蔽过程的使用减少会降低掩模对准误差,因此可以实现高密度。 因此,作为功率器件的重要因素的导通电阻可以降低。

    Method of fabricating T-type gate
    7.
    发明授权
    Method of fabricating T-type gate 失效
    制造T型门的方法

    公开(公告)号:US07141464B2

    公开(公告)日:2006-11-28

    申请号:US11179983

    申请日:2005-07-12

    IPC分类号: H01L21/338

    CPC分类号: H01L21/28587

    摘要: Provided is a method of fabricating a T-type gate including the steps of: forming a first photoresist layer, a blocking layer and a second photoresist layer to a predetermined thickness on a substrate, respectively; forming a body pattern of a T-type gate on the second photoresist layer and the blocking layer; exposing a predetermined portion of the second photoresist layer to form a head pattern of the T-type gate, and performing a heat treatment process to generate cross linking at a predetermined region of the second photoresist layer except for the head pattern of the T-type gate; performing an exposure process on an entire surface of the resultant structure, and then removing the exposed portion; and forming a metal layer of a predetermined thickness on an entire surface of the resultant structure, and then removing the first photoresist layer, the blocking layer, the predetermined region of the second photoresist layer in which the cross linking are generated, and the metal layer, whereby it is possible to readily perform a compound semiconductor device manufacturing process, and to reduce manufacturing cost by means of the increase of manufacturing yield and the simplification of manufacturing processes.

    摘要翻译: 提供一种制造T型栅极的方法,包括以下步骤:分别在衬底上形成预定厚度的第一光致抗蚀剂层,阻挡层和第二光致抗蚀剂层; 在所述第二光致抗蚀剂层和所述阻挡层上形成T型栅极的主体图案; 暴露第二光致抗蚀剂层的预定部分以形成T型栅极的头部图案,并且进行热处理工艺以在除了T型的头部图案之外的第二光致抗蚀剂层的预定区域处产生交联 门; 在所得结构的整个表面上进行曝光处理,然后去除所述暴露部分; 在所得结构的整个表面上形成预定厚度的金属层,然后去除第一光致抗蚀剂层,阻挡层,产生交联的第二光致抗蚀剂层的预定区域和金属层 ,由此可以容易地进行化合物半导体器件制造工艺,并且通过增加制造成品率和简化制造工艺来降低制造成本。

    Exposure apparatus
    8.
    发明申请
    Exposure apparatus 有权
    曝光装置

    公开(公告)号:US20060109444A1

    公开(公告)日:2006-05-25

    申请号:US11249783

    申请日:2005-10-13

    IPC分类号: G03B27/54

    CPC分类号: G03F7/70425

    摘要: Provided is a wafer exposure apparatus used in a semiconductor device manufacturing process, the exposure apparatus including: a reflective mirror for reflecting light provided from a light source; an optical path changer for changing a path of the light provided from the reflective mirror; first mirrors installed at both sides of the optical path changer to change the path of the light; second mirrors installed at both sides of a material to change the path of the light; and third mirrors installed at both sides of a mask to enter the light reflected by the first mirrors to the mask and to enter the light passed through the mask into the second mirrors, whereby it is possible to continuously expose one surface, both surfaces or a specific surface of a wafer in a state that the wafer is once aligned.

    摘要翻译: 提供了一种在半导体器件制造工艺中使用的晶片曝光装置,该曝光装置包括:用于反射从光源提供的光的反射镜; 用于改变从反射镜提供的光的路径的光路改变器; 首先将镜子安装在光路改换器的两侧,以改变光线的路径; 第二个镜子安装在材料的两侧以改变光线的路径; 和第三反射镜,其安装在掩模的两侧,以将由第一反射镜反射的光进入掩模,并将通过掩模的光进入第二反射镜,由此可以连续地将一个表面,两个表面或一个 在晶片一次对准的状态下晶片的比表面。

    Fabrication method of lateral double diffused MOS transistors
    9.
    发明授权
    Fabrication method of lateral double diffused MOS transistors 有权
    横向双扩散MOS晶体管的制造方法

    公开(公告)号:US6087232A

    公开(公告)日:2000-07-11

    申请号:US135645

    申请日:1998-08-18

    CPC分类号: H01L29/66659 H01L29/7835

    摘要: According to a method for manufacturing double RESURF (reduced SURface Field) LDMOS (Lateral Diffused Metal Oxide Semiconductor) transistors, on-resistance of double RESURF LDMOS transistors has been improved by using a new tapered p top layer on the surface of the drift region of the transistor, thereby decreasing the length of the drift region. Another advantage of the current invention is that the breakdown voltage similar with the on-resistance can be improved by using a reproducible tapered TEOS oxide by use of a multi-layer structure and low temperature annealing process. This is due to the reducing of the current path and impurity segregation in the drift region by using the tapered TEOS oxide instead of LOCOS filed oxide.

    摘要翻译: 根据制造双RESURF(减少的SURface Field)LDMOS(侧向扩散金属氧化物半导体)晶体管的方法,通过在漂移区的表面上使用新的锥形p顶层,改善了双RESURF LDMOS晶体管的导通电阻 晶体管,从而减小漂移区的长度。 本发明的另一个优点是可以通过使用多层结构和低温退火工艺使用可再现的锥形TEOS氧化物来改善与导通电阻相似的击穿电压。 这是由于通过使用锥形TEOS氧化物而不是LOCOS氧化物来减少漂移区中的电流路径和杂质偏析。

    Exposure apparatus
    10.
    发明授权
    Exposure apparatus 有权
    曝光装置

    公开(公告)号:US07190432B2

    公开(公告)日:2007-03-13

    申请号:US11249783

    申请日:2005-10-13

    CPC分类号: G03F7/70425

    摘要: Provided is a wafer exposure apparatus used in a semiconductor device manufacturing process, the exposure apparatus including: a reflective mirror for reflecting light provided from a light source; an optical path changer for changing a path of the light provided from the reflective mirror; first mirrors installed at both sides of the optical path changer to change the path of the light; second mirrors installed at both sides of a material to change the path of the light; and third mirrors installed at both sides of a mask to enter the light reflected by the first mirrors to the mask and to enter the light passed through the mask into the second mirrors, whereby it is possible to continuously expose one surface, both surfaces or a specific surface of a wafer in a state that the wafer is once aligned.

    摘要翻译: 提供了一种在半导体器件制造工艺中使用的晶片曝光装置,该曝光装置包括:用于反射从光源提供的光的反射镜; 用于改变从反射镜提供的光的路径的光路改变器; 首先将镜子安装在光路改换器的两侧,以改变光线的路径; 第二个镜子安装在材料的两侧以改变光线的路径; 和第三反射镜,其安装在掩模的两侧,以将由第一反射镜反射的光进入掩模,并将通过掩模的光进入第二反射镜,由此可以连续地将一个表面,两个表面或一个 在晶片一次对准的状态下晶片的比表面。