13.
    发明专利
    未知

    公开(公告)号:DE10215666A1

    公开(公告)日:2002-11-07

    申请号:DE10215666

    申请日:2002-04-09

    Abstract: A structure and method which enables the deposit of a thin nitride liner just before Trench Top Oxide TTO (High Density Plasma) HDP deposition during the formation of a vertical MOSFET DRAM cell device. This liner is subsequently removed after TTO sidewall etch. One function of this liner is to protect the collar oxide from being etched during the TTO oxide sidewall etch and generally provides lateral etch protection which is not realized in the current processing scheme. The process sequence does not rely on previously deposited films for collar protection, and decouples TTO sidewall etch protection from previous processing steps to provide additional process flexibility, such as allowing a thinner strap Cut Mask nitride and greater nitride etching during node nitride removal and buried strap nitrided interface removal. Advantageously, the presence of the nitride liner beneath the TTO reduces possibility of TTO dielectric breakdown between the gate and capacitor node electrode of the vertical MOSFET DRAM cell, while assuring strap diffusion to gate conductor overlap.

    14.
    发明专利
    未知

    公开(公告)号:DE10220542A1

    公开(公告)日:2002-12-05

    申请号:DE10220542

    申请日:2002-05-08

    Abstract: A semiconductor device includes at least two active areas, each active area surrounding a corresponding trench in a substrate. The trenches each include a capacitor in a lower portion of the trench and a gate in an upper portion of the trench. A vertical transistor is formed adjacent to the trench in the upper portion for charging and discharging the capacitor. A body contact is formed between the at least two active areas. The body contact connects to the at least two active areas and to a diffusion well of the substrate for preventing floating body effects in the vertical transistor.

    15.
    发明专利
    未知

    公开(公告)号:DE10233234A1

    公开(公告)日:2003-04-17

    申请号:DE10233234

    申请日:2002-07-22

    Abstract: A MOSFET having a new source/drain (S/D) structure is particularly adapted to smaller feature sizes of modern CMOS technology. The S/D conductors are located on the shallow trench isolation (STI) to achieve low junction leakage and low junction capacitance. The S/D junction depth is defined by an STI etch step (according to a first method of making the MOSFET) or a silicon etch step (according to a second method of making the MOSFET). By controlling the etch depth, a very shallow junction depth is achieved. There is a low variation of gate length, since the gate area is defined by etching crystal silicon, not by etching polycrystalline silicon. There is a low aspect ratio between the gate and the S/D, since the gate conductor and the source and drain conductors are aligned on same level. A suicide technique is applied to the source and drain for low parasitic resistance; however, this will not result in severe S/D junction leakage, since the source and drain conductors sit on the STI.

    Sublithographic fuses using a phase shift mask
    16.
    发明授权
    Sublithographic fuses using a phase shift mask 失效
    使用相移掩模的亚光刻保险丝

    公开(公告)号:US6278171B2

    公开(公告)日:2001-08-21

    申请号:US73466800

    申请日:2000-12-13

    Applicant: IBM

    CPC classification number: H01L23/5258 H01L2924/0002 Y10S438/947 H01L2924/00

    Abstract: A method for forming an interconnect wiring structure, such as a fuse structure, comprises forming an opening in an insulating layer using a phase shift mask (the opening having vertical sidewalls sloped sidewalls and horizontal surfaces), depositing a conductive material in the opening and removing the conductive material from the sloped sidewalls and horizontal surfaces, wherein the conductive material remains on the vertical sidewalls as fuse links.

    Abstract translation: 用于形成诸如熔丝结构的互连布线结构的方法包括使用相移掩模(具有垂直侧壁倾斜的侧壁和水平表面的开口)在绝缘层中形成开口,在开口中沉积导电材料并除去 来自倾斜侧壁和水平表面的导电材料,其中导电材料作为熔丝链保持在垂直侧壁上。

    Bitline diffusion with halo for improved array threshold voltage control
    17.
    发明授权
    Bitline diffusion with halo for improved array threshold voltage control 失效
    用光晕进行位线扩散,以改善阵列阈值电压控制

    公开(公告)号:US6444548B2

    公开(公告)日:2002-09-03

    申请号:US25781799

    申请日:1999-02-25

    Applicant: IBM

    Abstract: A integrated circuit device and method for manufacturing an integrated circuit device includes forming a patterned gate stack, adjacent a storage device, to include a storage node diffusion region adjacent the storage device and a bitline contact diffusion region opposite the storage node diffusion region, implanting an impurity in the storage node diffusion region and the bitline contact diffusion region, forming an insulator layer over the patterned gate stack, removing a portion of the insulator layer from the bitline contact diffusion region to form sidewall spacers along a portion of the patterned gate stack adjacent the bitline contact diffusion region, implanting a halo implant into the bitline contact diffusion region, wherein the insulator layer is free from blocking the halo implant from the second diffusion region and annealing the integrated circuit device to drive the halo implant ahead of the impurity.

    Abstract translation: 一种用于制造集成电路器件的集成电路器件和方法,包括形成与存储器件相邻的图案化栅叠层,以包括与存储器件相邻的存储节点扩散区域和与存储节点扩散区域相对的位线接触扩散区域, 在存储节点扩散区域和位线接触扩散区域中形成杂质,在图案化的栅极堆叠上形成绝缘体层,从位线接触扩散区域去除绝缘体层的一部分,以沿着图案化的栅极叠层的一部分相邻形成侧壁间隔物 所述位线接触扩散区域将卤素注入物注入到所述位线接触扩散区域中,其中所述绝缘体层不从所述第二扩散区域阻挡所述卤素注入并退火所述集成电路器件以在所述杂质之前驱动所述卤素注入。

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