A method to create narrow trenches in dielectric materials
    72.
    发明公开
    A method to create narrow trenches in dielectric materials 有权
    一种用于在所述的介电材料制造窄沟槽方法

    公开(公告)号:EP1764830A3

    公开(公告)日:2009-02-18

    申请号:EP05447238.6

    申请日:2005-10-21

    Inventor: Beyer, Gerald

    Abstract: The present invention relates to a method for the production of very small trenches in semiconductor devices.
    The formation of these small trenches is based on chemically changing the properties of a first dielectric layer locally, such that the side walls of a patterned hole in said first dielectric layer are converted locally and become etchable by a first etching substance. Subsequently a second dielectric material is deposited in the patterned structure and the damaged part of the first dielectric material is removed such that small trenches are obtained.
    The small trenches obtained by chemically changing the properties of a dielectric layer can be used as test vehicle to study barrier deposition, copper plating and seedlayer deposition within very small trenches (order 10-30 nm).

    High resolution plasma etch
    73.
    发明公开
    High resolution plasma etch 审中-公开
    HochauflösendePlasmaätzung

    公开(公告)号:EP2006249A2

    公开(公告)日:2008-12-24

    申请号:EP08158646.3

    申请日:2008-06-20

    Applicant: FEI COMPANY

    Abstract: A method for fabrication of microscopic structures that uses a beam process, such as beam-induced decomposition of a precursor, to deposit a mask in a precise pattern and then a selective, plasma beam is applied, comprising the steps of first creating a protective mask upon surface portions of a substrate using a beam process such as an electron beam, focused ion beam (FIB), or laser process, and secondly etching unmasked substrate portions using a selective plasma beam etch process. Optionally, a third step comprising the removal of the protective mask may be performed with a second, materially oppositely selective plasma beam process.

    Abstract translation: 应用一种制造微结构的方法,该方法使用光束过程,例如光束诱导的前体分解,以精确图案沉积掩模,然后选择性等离子束,包括以下步骤:首先产生保护掩模 使用诸如电子束,聚焦离子束(FIB)或激光工艺的光束过程在衬底的表面部分上,并且使用选择性等离子体束蚀刻工艺二次蚀刻未掩模的衬底部分。 可选地,包括去除保护掩模的第三步骤可以用第二种,实质上相对选择的等离子体束工艺进行。

    Endpoint detection in time division multiplexed processes using an envelope follower algorithm
    74.
    发明授权
    Endpoint detection in time division multiplexed processes using an envelope follower algorithm 有权
    终点检测在时分方法使用Hüllkurvenalgorithmus

    公开(公告)号:EP1623457B1

    公开(公告)日:2008-11-26

    申请号:EP04751610.9

    申请日:2004-05-06

    Abstract: The present invention provides a method for establishing endpoint during an alternating cyclical etch process or time division multiplexed process. A substrate is placed within a plasma chamber and subjected to an alternating cyclical process having an etching step and a deposition step. A variation in plasma emission intensity is monitored using known optical emission spectrometry techniques. An amplitude information is extracted from a complex waveform of the plasma emission intensity using an envelope follower algorithm. The alternating cyclical process is discontinued when endpoint is reached at a time that is based on the monitoring step.

    Method for manufacturing a micro-electro-mechanical structure
    76.
    发明公开
    Method for manufacturing a micro-electro-mechanical structure 有权
    Verfahren zum Herstellen einer mikroelectromechanischen Struktur

    公开(公告)号:EP1770056A2

    公开(公告)日:2007-04-04

    申请号:EP06076692.0

    申请日:2006-09-07

    Inventor: Chilcott, Dan W.

    Abstract: A technique (500) for manufacturing a micro-electro-mechanical (MEM) structure includes a number of steps. Initially, a substrate is provided (502). Next, a plurality of trenches are etched into the substrate with a first etch (508). Then, a charging layer is formed at a bottom of each of the trenches to form undercut trenches (510). Finally, a second etch is provided into the undercut trenches. The charging layer causes the second etch to laterally etch foots in the substrate between the undercut trenches (512). The footers undercut the substrate to release a portion of the substrate for providing a movable structure between the undercut trenches and above the footers.

    Abstract translation: 用于制造微机电(MEM)结构的技术(500)包括多个步骤。 首先,提供基板(502)。 接下来,通过第一蚀刻(508)将多个沟槽蚀刻到衬底中。 然后,在每个沟槽的底部形成充电层以形成底切槽(510)。 最后,在底切沟槽中提供第二蚀刻。 充电层使得第二蚀刻在底切沟槽(512)之间横向蚀刻衬底中的脚。 底脚底切基板以释放基板的一部分,以在底切沟槽和页脚之上提供可移动结构。

    Method of making a soi silicon structure
    77.
    发明公开
    Method of making a soi silicon structure 审中-公开
    Verfahren zum Herstellen einer SOI-Struktur

    公开(公告)号:EP1734000A2

    公开(公告)日:2006-12-20

    申请号:EP06076128.5

    申请日:2006-05-30

    Inventor: Chilcott, Dan W.

    CPC classification number: B81C1/00944 B81C2201/0132

    Abstract: A process for making a microelectromechanical device having a moveable component defined by a gap pattern in a semiconductor layer of a silicon-on-insulator wafer (10) involves the use of a plurality of deep reactive ion etching steps at various etch depths that are used to allow a buried oxide layer (14) of the silicon-on-insulator wafer (10) to be exposed in selected areas before the entire moveable component of the resulting device is freed for movement. This method allows wet release techniques to be used to remove the buried oxide layer (14) without developing stiction problems. This is achieved by utilizing deep reactive ion etching to free the moveable component after a selected portion of the buried oxide layer (14) has been removed by wet etching.

    Abstract translation: 一种用于制造具有由绝缘体上硅晶片(10)的半导体层中的间隙图案限定的可移动部件的微机电装置的方法涉及使用多个深反应离子蚀刻步骤,所述深反应离子蚀刻步骤在使用的各种蚀刻深度 允许绝缘体上硅晶片(10)的掩埋氧化物层(14)在所得到的器件的整个可移动部件被释放以便移动之前暴露在选定的区域中。 该方法允许湿式释放技术用于去除埋入氧化物层(14)而不产生粘性问题。 这是通过利用深反应离子蚀刻在通过湿法蚀刻去除掩埋氧化物层(14)的选定部分之后释放可移动部件来实现的。

    Merged-mask micro-machining process
    79.
    发明公开
    Merged-mask micro-machining process 有权
    所述的微机械的制造方法与交叉衰落掩模

    公开(公告)号:EP1510864A2

    公开(公告)日:2005-03-02

    申请号:EP04026039.0

    申请日:2000-07-13

    Abstract: The present invention provides merged-mask processes for fabricating micromachined devices in general and mirrored assemblies for use in optical scanning devices in particular. A method of fabricating a three dimensional structure, comprising, providing a substrate, applying a layer of a first masking material onto the substrate, applying a layer of a second masking material onto the layer of the first masking material, patterning the layer of the second masking material, applying a layer of a third masking material onto the portions not covered by the patterned layer of the second masking material, the layer of the third masking material is at least as thick as the combined thickness of the layers of the first and second masking materials, patterning the layers of the first and third masking materials, etching the exposed portions of the substrate, etching the exposed portions of the layers of the first and third masking materials and etching the exposed portions of the substrate.

    MERGED-MASK MICRO-MACHINING PROCESS
    80.
    发明授权
    MERGED-MASK MICRO-MACHINING PROCESS 有权
    麻省理工学院麻省理工学院ÜBERBLENDETENMASKEN

    公开(公告)号:EP1196788B1

    公开(公告)日:2004-12-22

    申请号:EP00945370.5

    申请日:2000-07-13

    Abstract: The present invention provides merged-mask processes for fabricating micro-machined devices in general and mirrored assemblies for use in optical scanning devices in particular. The process includes (a) providing a substrate having a predetermined thickness; (b) applying a first masking layer on a first portion of the substrate and a second masking layer on a second portion of the substrate, said second masking layer being at least as thick as the first masking layer; (c) etching a portion of the second masking layer to provide a first exposed portion of the substrate; (d) etching the first exposed portion of the substrate to a first depth; (e) etching the second masking layer to provide a second exposed portion of the substrate; and (f) etching simultaneously the first exposed portion of the substrate to a second depth and the second exposed portion of the substrate to a first depth. The process further comprises patterning the first masking layer before applying the second masking layer to provide the second portion of the substrate for etching and etching the first masking layer to expose the second portion of the substrate. The first and second masking layers are applied prior to etching the substrate.

    Abstract translation: 本发明提供了用于一般地制造微机械装置和特别是用于光学扫描装置的镜面组件的合并掩模工艺。 一种制造三维结构的方法,包括:提供衬底,将第一掩蔽材料层施加到所述衬底上,将第二掩蔽材料层施加到所述第一掩模材料的所述层上,将所述第二掩模材料的所述层 掩模材料,将第三掩模材料层施加到未被第二掩模材料的图案化层覆盖的部分上,第三掩模材料的层至少与第一和第二掩模材料的层的组合厚度一样厚 掩模材料,图案化第一和第三掩模材料的层,蚀刻衬底的暴露部分,蚀刻第一和第三掩模材料的层的暴露部分并蚀刻衬底的暴露部分。

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