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    • 3. 发明授权
    • Flash memory device and method of fabricating the same
    • 闪存装置及其制造方法
    • US5981993A
    • 1999-11-09
    • US965232
    • 1997-11-06
    • Won-Ju Cho
    • Won-Ju Cho
    • H01L21/28H01L21/768H01L21/8247H01L27/115H01L29/423H01L29/788H01L29/792H01L29/72
    • H01L21/28273H01L29/42324
    • A semiconductor memory device and method of fabricating the same includes a first insulation layer and a first conductive layer formed on a substrate; conductive sidewall spacers protruding upwardly on the sides of the first conductive layer; a second insulation layer formed on the substrate and covering the conductive sidewall spacers; a second conductive layer, a third insulation layer, a third conductive layer, and a fourth insulation layer sequentially formed on the second insulation layer; a contact hole formed through the second and third conductive layers and the second through fourth insulation layers; insulative sidewall spacers formed on the sidewalls of the contact hole; and a fourth conductive layer formed in the contact hole so as to be in contact with the first conductive layer. The gate structure of the semiconductor memory device effectively prevents electrons from tunneling from the fourth conductive layer (data line) to the third conductive layer (control gate) through the inter-layer insulation layer formed on the second conductive layer (floating gate) by providing a strong electrical field at the upper tips of the conductive sidewall spacers, though a low voltage is applied to the gate electrode of the semiconductor memory device.
    • 半导体存储器件及其制造方法包括形成在衬底上的第一绝缘层和第一导电层; 在第一导电层的侧面向上突出的导电侧壁隔离物; 形成在所述基板上并覆盖所述导电侧壁间隔物的第二绝缘层; 第二导电层,第三绝缘层,第三导电层和顺序地形成在第二绝缘层上的第四绝缘层; 形成穿过第二和第三导电层和第二至第四绝缘层的接触孔; 形成在接触孔的侧壁上的绝缘侧壁间隔物; 以及形成在所述接触孔中以与所述第一导电层接触的第四导电层。 半导体存储器件的栅极结构通过提供形成在第二导电层(浮栅)上的层间绝缘层,有效地防止电子从第四导电层(数据线)到第三导电层(控制栅极)的隧穿 尽管在半导体存储器件的栅电极施加了低电压,但是在导电侧壁间隔物的上端处的强电场。
    • 4. 发明授权
    • Method for formation of capacitors
    • 电容器形成方法
    • US5849619A
    • 1998-12-15
    • US769627
    • 1996-12-18
    • Won-Ju ChoWouns Yang
    • Won-Ju ChoWouns Yang
    • H01L27/04H01L21/02H01L21/822H01L21/8242H01L27/108H01L21/20
    • H01L27/10852H01L27/10817H01L28/91
    • A method of forming a capacitor for a DRAM includes the steps of: forming an insulating layer with a contact hole on a substrate; forming a first conductive layer on the insulating layer and in the contact hole; forming a temporary layer pattern on a portion of the first conductive layer corresponding to the contact hole; forming a second conductive layer on the first conductive layer and on the temporary layer pattern; selectively implanting oxygen ions into the first and second conductive layers except a portion of the second conductive layer corresponding to a side face of the temporary layer pattern; heat treating so as to convert the oxygen-ion-implanted first and second conductive layer portions into an oxide; removing the oxide and temporary layer pattern; forming a dielectric layer on the surface of the first and second conductive layers; and forming a third conductive layer on the dielectric layer.
    • 形成用于DRAM的电容器的方法包括以下步骤:在衬底上形成具有接触孔的绝缘层; 在绝缘层和接触孔中形成第一导电层; 在对应于接触孔的第一导电层的一部分上形成临时层图案; 在所述第一导电层和所述临时层图案上形成第二导电层; 除了对应于临时层图案的侧面的第二导电层的一部分之外,有选择地将氧离子注入到第一和第二导电层中; 热处理以将注入氧离子的第一和第二导电层部分转化为氧化物; 去除氧化物和临时层图案; 在所述第一和第二导电层的表面上形成介电层; 以及在所述电介质层上形成第三导电层。
    • 5. 发明授权
    • Ultra small-sized SOI MOSFET and method of fabricating the same
    • 超小型SOI MOSFET及其制造方法
    • US06723587B2
    • 2004-04-20
    • US10331568
    • 2002-12-31
    • Won-Ju ChoJong-Heon YangMoon-Gyu JangSeong-Jae LeeKyoung-Wan ParkKi-Ju ImJi-Hun Oh
    • Won-Ju ChoJong-Heon YangMoon-Gyu JangSeong-Jae LeeKyoung-Wan ParkKi-Ju ImJi-Hun Oh
    • H01L2184
    • H01L29/78696H01L29/66772H01L29/78609
    • An ultra small-sized SOI MOSFET having a high integration density, low power consumption, but high performances, and a method of fabricating the same are provided. The method includes preparing a SOI substrate on which a monocrystalline silicon layer is formed, forming a first dielectric material layer doped with impurities of a first conductivity type on the SOI substrate, forming an opening to expose the monocrystalline silicon layer etching at least part of the first dielectric material layer, forming a channel region injecting impurities of a second conductivity type into the monocrystalline silicon layer exposed by the opening, forming a source region and a drain region in the monocrystalline silicon layer diffusing the impurities of the first dielectric material layer using heat treatment, forming a gate dielectric layer in the opening on the channel region, forming a gate electrode on the gate dielectric layer to fit in the opening, forming a second dielectric material layer on the entire surface of the SOI substrate on which the gate electrode is formed, forming contact holes to expose the gate electrode, the source region, and the drain region etching part of the second dielectric material layer, and forming metal interconnections to bury the contact holes.
    • 提供了具有高积分密度,低功耗但高性能的超小尺寸SOI MOSFET及其制造方法。 该方法包括制备在其上形成单晶硅层的SOI衬底,在SOI衬底上形成掺杂有第一导电类型的杂质的第一介电材料层,形成开口,以暴露单晶硅层,刻蚀至少部分 第一介电材料层,形成将由第二导电类型杂质注入由开口露出的单晶硅层的沟道区,在单晶硅层中形成源极区和漏极区,使用热量扩散第一介电材料层的杂质 在沟道区域的开口中形成栅极电介质层,在栅极电介质层上形成栅电极以配合在开口中,在栅极电极的SOI衬底的整个表面上形成第二电介质层 形成,形成接触孔以露出栅电极,源极区和漏极 区域蚀刻第二介电材料层的部分,以及形成用于埋入接触孔的金属互连。