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    • 1. 发明授权
    • Poly etching solution to improve silicon trench for low STI profile
    • Poly蚀刻解决方案,以改善硅沟槽的低STI特性
    • US06649489B1
    • 2003-11-18
    • US10366207
    • 2003-02-13
    • Li-Wen ChangHung-Cheng SungDer-Shin ShyuHan-Ping ChenChen-Ming HuangYa-Chen Kao
    • Li-Wen ChangHung-Cheng SungDer-Shin ShyuHan-Ping ChenChen-Ming HuangYa-Chen Kao
    • H01L2176
    • H01L21/76232
    • A method of etch polysilicon adjacent to a recessed STI structure feature is described. A substrate is provided with a dielectric layer thereon and a polysilicon layer on the dielectric layer. A shallow trench is formed that extends through the polysilicon and dielectric layers into the substrate. An insulating material is used to fill the trench and is then recessed in the trench below the surface of the substrate by polishing and etching steps. A conformal buffer layer is deposited which covers the polysilicon and sidewalls of the trench above the recessed insulating layer. The buffer layer is etched back to expose the insulating layer and the polysilicon is removed by a plasma etch. A spacer comprised of a portion of the buffer layer protects the substrate during the polysilicon etch to prevent unwanted trenches from being formed adjacent to the STI structure, thereby increasing the etch process window.
    • 描述了与凹陷STI结构特征相邻的蚀刻多晶硅的方法。 衬底上设置介电层,并在电介质层上设置多晶硅层。 形成浅沟槽,其延伸穿过多晶硅和电介质层进入衬底。 绝缘材料用于填充沟槽,然后通过抛光和蚀刻步骤将其凹入到衬底表面下方的沟槽中。 沉积保形缓冲层,其覆盖凹陷绝缘层上方的沟槽的多晶硅和侧壁。 将缓冲层回蚀刻以暴露绝缘层,并且通过等离子体蚀刻去除多晶硅。 由缓冲层的一部分构成的间隔件在多晶硅蚀刻期间保护衬底以防止在STI结构附近形成不必要的沟槽,从而增加蚀刻工艺窗口。
    • 2. 发明授权
    • Architecture to suppress bit-line leakage
    • 抑制位线泄漏的体系结构
    • US06819593B2
    • 2004-11-16
    • US10318458
    • 2002-12-13
    • Der-Shin ShyuHung-Cheng SungLi-Wen ChangHan-Ping ChenChen-Ming HuangYa-Chen Kao
    • Der-Shin ShyuHung-Cheng SungLi-Wen ChangHan-Ping ChenChen-Ming HuangYa-Chen Kao
    • G11C1600
    • G11C16/3418G11C16/0425
    • A method to suppress bit-line leakage in a nonvolatile memory cell is achieved. The method comprises providing an array of nonvolatile memory cells comprising source and bulk terminals. The array comprises a plurality of subarrays. The sources of all the nonvolatile cells in each subarray are coupled together to form a common subarray source. Bulks of all the nonvolatile cells in the array are coupled together to form a common array bulk. A first, non-zero voltage is forced between the common subarray source and the common array bulk for a first subarray that is selected for an access operation. A second, non-zero voltage is forced between the common subarray source and the common array bulk for a second subarray that is not selected for an access operation. The second, non-zero voltage inhibits bit line leakage in the second subarray.
    • 实现了在非易失性存储单元中抑制位线泄漏的方法。 该方法包括提供包括源极和体积端子的非易失性存储器单元的阵列。 阵列包括多个子阵列。 每个子阵列中的所有非易失性单元的源耦合在一起以形成公共的子阵列源。 阵列中所有非易失性单元的容量被耦合在一起以形成共同的阵列体。 对于为访问操作选择的第一子阵列,第一个非零电压被强制在公共子阵列源和公共阵列块之间。 第二个非零电压被强制在公共子阵列源和公共阵列块之间,用于未被选择用于访问操作的第二子阵列。 第二个非零电压禁止第二个子阵列中的位线泄漏。
    • 4. 发明授权
    • Process for flash memory cell
    • 闪存单元的处理
    • US06849499B2
    • 2005-02-01
    • US10331370
    • 2002-12-30
    • Hung-Cheng SungHan-Ping ChenCheng-Yuan Hsu
    • Hung-Cheng SungHan-Ping ChenCheng-Yuan Hsu
    • H01L21/8247H01L27/115H01L21/336H01L29/788
    • H01L27/11521H01L27/115
    • A method is provided for forming a flash memory cell having an amorphous silicon floating gate capped by a CVD oxide, and a control gate formed over an intergate oxide layer formed over the oxide cap. Amorphous silicon is first formed over a gate oxide layer over a substrate, followed by the forming of a silicon nitride layer over the amorphous silicon layer. Silicon nitride is patterned to have a tapered opening so that the process window for aligning the floating gate with the active region of the cell is achieved with a relatively wide margin. Next, an oxide cap is formed over the floating gate. Using an oxide deposition method in place of the conventional polyoxidation method provides a less bulbous oxide formation over the floating gate, thus, yielding improved erase speed for the cell. The invention is also directed to a flash memory cell fabricated by the disclosed method.
    • 提供了一种用于形成具有由CVD氧化物覆盖的非晶硅浮动栅极的闪存单元的方法,以及形成在氧化物盖上形成的栅间氧化物层上的控制栅极。 首先在衬底上的栅极氧化物层上形成无定形硅,随后在非晶硅层上形成氮化硅层。 将氮化硅图案化成具有锥形开口,使得用浮动栅极与电池的有源区对准的工艺窗口以相对较大的余量实现。 接下来,在浮动栅极上形成氧化物盖。 使用氧化物沉积方法代替常规的多氧化方法提供了在浮栅上的较少的氧化锆形成,从​​而产生改善的电池的擦除速度。 本发明还涉及通过所公开的方法制造的闪存单元。
    • 6. 发明授权
    • Split gate field effect transistor (FET) device with enhanced electrode registration and method for fabrication thereof
    • 具有增强的电极配准的分离栅场效应晶体管(FET)器件及其制造方法
    • US06482700B2
    • 2002-11-19
    • US09725984
    • 2000-11-29
    • Han-Ping ChenHung-Cheng Sung
    • Han-Ping ChenHung-Cheng Sung
    • H01L218232
    • H01L27/11521H01L27/115H01L29/42324H01L29/66553
    • Within a method for fabricating a split gate field effect transistor (FET) within a semiconductor integrated circuit microelectronic fabrication there is employed a patterned mask layer as an etch mask layer for forming from a blanket floating gate electrode material layer a floating gate electrode. At least a portion of the patterned mask layer is then laterally etched to completely expose an edge of the floating gate electrode prior to forming over the floating gate electrode and the edge of the floating gate electrode an inter-gate electrode dielectric layer having formed thereupon a control gate electrode. The method contemplates a split gate field effect transistor (FET) device fabricated in accord with the method. The resulting split gate field effect transistor (FET) device has an enhanced control gate electrode to floating gate electrode registration.
    • 在用于在半导体集成电路微电子制造中制造分裂栅极场效应晶体管(FET)的方法中,采用图案化掩模层作为用于从橡皮布浮栅电极材料层形成浮栅电极的蚀刻掩模层。 然后在图案化掩模层的至少一部分被横向蚀刻之前,以在形成浮栅和浮栅之间的栅极电极介质层之前形成的栅间电极介电层 控制栅电极。 该方法考虑了根据该方法制造的分裂栅极场效应晶体管(FET)器件。 所产生的分离栅场效应晶体管(FET)器件具有增强的控制栅电极到浮栅电极配准。
    • 9. 发明申请
    • Method of forming self-aligned poly for embedded flash
    • 用于嵌入式闪光灯的自对准聚酰亚胺的方法
    • US20050127435A1
    • 2005-06-16
    • US10822505
    • 2004-04-12
    • Han-Ping ChenChung-Yi Yu
    • Han-Ping ChenChung-Yi Yu
    • H01L21/8247H01L27/115H01L27/12H01L29/423H01L29/76H01L29/788
    • H01L27/11526H01L27/115H01L27/11521H01L27/11534H01L27/1203H01L29/42324H01L29/7885
    • A method of manufacturing a microelectronic device including, in one embodiment, providing a substrate having a plurality of partially completed microelectronic devices including at least one partially completed memory device and at least one partially completed transistor. At least a portion of the partially completed transistor is protected by forming a first layer over the portion of the partially completed transistor to be protected during a subsequent material removal step. A second layer is formed substantially covering the partially completed memory device and the partially completed transistor. Portions of the second layer are removed leaving a portion of the second layer over the partially completed memory device. At least a substantial portion of the first layer is removed from the partially completed transistor after the portions of the second layer are removed.
    • 一种制造微电子器件的方法,在一个实施例中包括提供具有多个部分完成的微电子器件的衬底,所述微电子器件包括至少一个部分完成的存储器件和至少一个部分完成的晶体管。 通过在随后的材料去除步骤期间在待保护的部分完成的晶体管的部分上形成第一层来保护部分完成的晶体管的至少一部分。 形成基本覆盖部分完成的存储器件和部分完成的晶体管的第二层。 去除第二层的部分,留下部分完成的存储器件上的第二层的一部分。 在去除第二层的部分之后,第一层的至少大部分被从部分完成的晶体管中去除。