Method of fabricating submicron suspended objects and application to the mechanical characterization of said objects
    3.
    发明授权
    Method of fabricating submicron suspended objects and application to the mechanical characterization of said objects 有权
    制造亚微米悬浮物体的方法和应用于所述物体的机械表征

    公开(公告)号:US07754506B2

    公开(公告)日:2010-07-13

    申请号:US11454151

    申请日:2006-06-15

    IPC分类号: H01L21/00

    摘要: A method of fabricating submicron objects that includes the following steps: depositing a void layer on a support, depositing a transfer layer on the void layer, producing the objects in the transfer layer, producing a hard mask on a portion of the transfer layer to delimit a region comprising a portion of the objects, and etching the combination formed by the hard mask, the transfer layer and the void layer to eliminate the hard mask and the portion of the transfer layer in the region and to open up the portion of the void layer under the region so that the objects are suspended, the rate of etching the void layer being greater than the rate of etching the transfer layer and the hard mask.

    摘要翻译: 一种制造亚微米物体的方法,其包括以下步骤:在支撑体上沉积空隙层,在空隙层上沉积转移层,产生转移层中的物体,在转移层的一部分上产生硬掩模以界定 包括物体的一部分的区域,以及蚀刻由硬掩模,转移层和空隙层形成的组合,以消除该区域中的硬掩模和转移层的部分并且打开该部分的空隙 层,使得物体悬浮,蚀刻空隙层的速率大于蚀刻转印层和硬掩模的速率。

    Method of fabricating submicron suspended objects and application to the mechanical characterization of said objects
    4.
    发明申请
    Method of fabricating submicron suspended objects and application to the mechanical characterization of said objects 有权
    制造亚微米悬浮物体的方法和应用于所述物体的机械表征

    公开(公告)号:US20070031984A1

    公开(公告)日:2007-02-08

    申请号:US11454151

    申请日:2006-06-15

    IPC分类号: H01L21/00

    摘要: A method of fabricating submicron objects that includes the following steps: depositing a void layer on a support, depositing a transfer layer on the void layer, producing the objects in the transfer layer, producing a hard mask on a portion of the transfer layer to delimit a region comprising a portion of the objects, and etching the combination formed by the hard mask, the transfer layer and the void layer to eliminate the hard mask and the portion of the transfer layer in the region and to open up the portion of the void layer under the region so that the objects are suspended, the rate of etching the void layer being greater than the rate of etching the transfer layer and the hard mask.

    摘要翻译: 一种制造亚微米物体的方法,其包括以下步骤:在支撑体上沉积空隙层,在空隙层上沉积转移层,产生转移层中的物体,在转移层的一部分上产生硬掩模以界定 包括物体的一部分的区域,以及蚀刻由硬掩模,转移层和空隙层形成的组合,以消除该区域中的硬掩模和转移层的部分并且打开该部分的空隙 层,使得物体悬浮,蚀刻空隙层的速率大于蚀刻转印层和硬掩模的速率。

    Method of forming an alignment mark without a specific photolithographic
step
    5.
    发明授权
    Method of forming an alignment mark without a specific photolithographic step 失效
    在没有特定光刻步骤的情况下形成对准标记的方法

    公开(公告)号:US6030897A

    公开(公告)日:2000-02-29

    申请号:US85790

    申请日:1998-05-28

    申请人: Pascal Deconinck

    发明人: Pascal Deconinck

    IPC分类号: H01L23/544 H01L21/302

    摘要: An alignment mark is formed in a planar semiconductor IC structure coated by a layer opaque to the radiations of the photo-stepper used to perform a photolithographic step. First, there is provided a structure comprised of a silicon substrate (11) having at least one shallow isolation trench (17A) in the chip region (13) and one shallow alignment trench (17B') in the kerf region (14) of the substrate wherein said alignment trench has a determined width (W'). Then, a layer (18) of an insulating material is conformally deposited onto the structure. Its thickness is adequate to over fill the trenches so that depressions (18A, 18B') are created above the locations of said isolation and alignment trenches. Next, the structure is planarized by filling the depression over said isolation trench but not the depression (18B') formed over said alignment trench to preserve it. Now, the structure is uniformly etched back down to the surface of the silicon substrate transferring thereby said depression in the insulating material filling the alignment trench creating thereby a recess (22'). Finally, a layer (23) of an opaque material is conformally deposited onto the structure, which in turn produces a new depression (23B'). Said width W' is determined to have the alignment mark (22' or 23B') of the adequate size to perform the said photolithographic step.

    摘要翻译: 在由用于执行光刻步骤的光电步进器的辐射不透明的层涂覆的平面半导体IC结构中形成对准标记。 首先,提供一种由硅衬底(11)构成的结构,该硅衬底(11)在芯片区域(13)中具有至少一个浅隔离沟槽(17A)和在该芯部区域(13)的切口区域(14)中的一个浅取向沟槽(17B') 衬底,其中所述对准沟槽具有确定的宽度(W')。 然后,绝缘材料层(18)共形沉积到结构上。 其厚度足以过度填充沟槽,使得在所述隔离和对准沟槽的位置之上形成凹陷(18A,18B')。 接下来,通过在所述隔离沟槽上填充凹陷而不是形成在所述对准沟槽上的凹陷(18B')来保持该结构,使结构平坦化。 现在,将结构均匀地回蚀到硅衬底的表面上,从而使填充对准沟槽的绝缘材料中的所述凹陷转移,从而形成凹槽(22')。 最后,不透明材料的层(23)共形沉积到结构上,其又产生新的凹陷(23B')。 所述宽度W'被确定为具有足够尺寸的对准标记(22'或23B')以执行所述光刻步骤。