Nitridation of STI Fill Oxide to Prevent the Loss of STI Fill Oxide During Manufacturing Process
    6.
    发明申请
    Nitridation of STI Fill Oxide to Prevent the Loss of STI Fill Oxide During Manufacturing Process 失效
    氮化硅填充氧化物,以防止在制造过程中STI填充氧化物的损失

    公开(公告)号:US20080090379A1

    公开(公告)日:2008-04-17

    申请号:US11955751

    申请日:2007-12-13

    IPC分类号: H01L21/76

    摘要: A method and structure for an improved shallow trench isolation (STI) structure for a semiconductor device. The STI structure incorporates an oxynitride top layer of the STI fill. Optionally, the STI structure incorporates an oxynitride margin of the STI fill adjacent the silicon trench walls. A region of the oxynitride margin near the upper edges of the silicon trench walls includes oxynitride corners that are relatively thicker and contain a higher concentration of nitrogen as compared to the other regions of the oxynitride margin. The oxynitride features limit the STI fill height loss and also reduce the formation of divots in the STI fill below the level of the silicon substrate cause by hydrofluoric acid etching and other fabrication processes. Limiting STI fill height loss and the formation of divots improves the functions of the STI structure. The method of forming the STI structure is particularly compatible with standard semiconductor device fabrication processes, including chemical mechanical polishing (CMP), because the method incorporates the use of a pure silicon dioxide STI fill and plasma and thermal nitridation processes to form the oxynitride top layer and oxynitride margin, including the oxynitride corners, of the STI fill.

    摘要翻译: 一种用于半导体器件的改进的浅沟槽隔离(STI)结构的方法和结构。 STI结构包含STI填充物的氮氧化物顶层。 可选地,STI结构包括邻近硅沟槽壁的STI填充的氮氧化物边缘。 在硅沟槽壁的上边缘附近的氮氧化物边缘的区域包括与氮氧化物边缘的其它区域相比相对较厚并且含有较高浓度的氮的氧氮化物角。 氮氧化物的特征是限制了STI填充高度损失,并且还减少了STI填充物中由于氢氟酸蚀刻和其它制造工艺引起的硅衬底的形成。 限制STI填充高度损失和形成纹理改善了STI结构的功能。 形成STI结构的方法与包括化学机械抛光(CMP)在内的标准半导体器件制造工艺特别兼容,因为该方法包括使用纯二氧化硅STI填充和等离子体和热氮化工艺来形成氧氮化物顶层 和氮氧化物边缘,包括氮氧化物拐角,STI填充。

    NITRIDATION OF STI FILL OXIDE TO PREVENT THE LOSS OF STI FILL OXIDE DURING MANUFACTURING PROCESS
    7.
    发明申请
    NITRIDATION OF STI FILL OXIDE TO PREVENT THE LOSS OF STI FILL OXIDE DURING MANUFACTURING PROCESS 失效
    氮化硅氧化物在制造过程中防止氧化硅损失

    公开(公告)号:US20060160322A1

    公开(公告)日:2006-07-20

    申请号:US10905683

    申请日:2005-01-17

    IPC分类号: H01L21/76

    摘要: A method and structure for an improved shallow trench isolation (STI) structure for a semiconductor device. The STI structure incorporates an oxynitride top layer of the STI fill. Optionally, the STI structure incorporates an oxynitride margin of the STI fill adjacent the silicon trench walls. A region of the oxynitride margin near the upper edges of the silicon trench walls includes oxynitride corners that are relatively thicker and contain a higher concentration of nitrogen as compared to the other regions of the oxynitride margin. The oxynitride features limit the STI fill height loss and also reduce the formation of divots in the STI fill below the level of the silicon substrate cause by hydrofluoric acid etching and other fabrication processes. Limiting STI fill height loss and the formation of divots improves the functions of the STI structure. The method of forming the STI structure is particularly compatible with standard semiconductor device fabrication processes, including chemical mechanical polishing (CMP), because the method incorporates the use of a pure silicon dioxide STI fill and plasma and thermal nitridation processes to form the oxynitride top layer and oxynitride margin, including the oxynitride corners, of the STI fill.

    摘要翻译: 一种用于半导体器件的改进的浅沟槽隔离(STI)结构的方法和结构。 STI结构包含STI填充物的氮氧化物顶层。 可选地,STI结构包括邻近硅沟槽壁的STI填充的氮氧化物边缘。 在硅沟槽壁的上边缘附近的氮氧化物边缘的区域包括与氮氧化物边缘的其它区域相比相对较厚并且含有较高浓度的氮的氧氮化物角。 氮氧化物的特征是限制了STI填充高度损失,并且还减少了STI填充物中由于氢氟酸蚀刻和其它制造工艺引起的硅衬底的形成。 限制STI填充高度损失和形成纹理改善了STI结构的功能。 形成STI结构的方法与包括化学机械抛光(CMP)在内的标准半导体器件制造工艺特别兼容,因为该方法包括使用纯二氧化硅STI填充和等离子体和热氮化工艺来形成氧氮化物顶层 和氮氧化物边缘,包括氮氧化物拐角,STI填充。

    Decentralized Transportation Dispatching System and Method for Decentralized Transportation Dispatching
    8.
    发明申请
    Decentralized Transportation Dispatching System and Method for Decentralized Transportation Dispatching 审中-公开
    分散式运输调度系统及分散式运输调度方法

    公开(公告)号:US20120123894A1

    公开(公告)日:2012-05-17

    申请号:US13295198

    申请日:2011-11-14

    IPC分类号: G06Q50/30 G06Q30/06

    CPC分类号: G06Q30/0611

    摘要: A method for decentralized transportation dispatching is disclosed. The method bypasses utilizing a centralized dispatch call center and includes announcing a transportation requirement via broadcasting directly by at least one user, and replying to the transportation requirement with a plurality of competitive bidding information directly from a plurality of transportation providers who are capable of providing a passenger-carrying service or providing a goods-carrying service. The method further includes selecting one transportation provider from the transportation providers according to a request from the user, in which the selecting is performed through referencing the bidding information replied to by the transportation providers.

    摘要翻译: 披露了分散运输调度方法。 该方法绕过利用集中式调度呼叫中心,并且包括通过至少一个用户直接广播来宣布交通需求,并且直接从能够提供一个用户的多个运输提供商的多个竞争性投标信息中回答运输需求 乘客携带服务或提供货物服务。 该方法还包括根据来自用户的请求从运输提供商中选择一个运输提供商,其中通过参考由运输提供商回复的投标信息进行选择。