Method for integrating low-K materials in semiconductor fabrication
    12.
    发明授权
    Method for integrating low-K materials in semiconductor fabrication 失效
    半导体制造中低K材料的集成方法

    公开(公告)号:US06759750B2

    公开(公告)日:2004-07-06

    申请号:US10623910

    申请日:2003-07-18

    IPC分类号: H01L2348

    摘要: A method for integrating low-K materials in semiconductor fabrication. The process begins by providing a semiconductor structure having a dielectric layer thereover, wherein the dielectric layer comprising an organic low-K material. The dielectric layer is patterned to form pillar openings. A pillar layer is deposited over the semiconductor structure; thereby filling the pillar openings with the pillar layer. The pillar layer is planarized to form pillars embedded in said dielectric layer. The pillar layer comprises a material having good thermal stability, good structural strength, and good bondability of spin coating back-end materials, improving the manufacturability of organic, low-K dielectrics in semiconductor fabrication. In one embodiment, the pillars are formed prior to forming dual damascene interlayer contacts. In another embodiment, pillars are formed simultaneously with interlayer contacts.

    摘要翻译: 一种用于在半导体制造中集成低K材料的方法。 该方法开始于提供其上具有介电层的半导体结构,其中介电层包含有机低K材料。 图案化电介质层以形成柱状开口。 在半导体结构上沉积柱层; 从而用柱层填充柱状开口。 柱层被平坦化以形成嵌入在所述介电层中的柱。 柱层包括具有良好的热稳定性,良好的结构强度和旋涂后端材料的良好的粘合性的材料,提高半导体制造中的有机,低K电介质的可制造性。 在一个实施例中,在形成双镶嵌层间接触之前形成柱。 在另一个实施方案中,柱与层间接触同时形成。

    Self aligned dual damascene process and structure with low parasitic
capacitance
    13.
    发明授权
    Self aligned dual damascene process and structure with low parasitic capacitance 有权
    自对准双镶嵌工艺和结构具有低寄生电容

    公开(公告)号:US6133144A

    公开(公告)日:2000-10-17

    申请号:US368864

    申请日:1999-08-06

    IPC分类号: H01L21/768 H01L21/4763

    CPC分类号: H01L21/7681

    摘要: An improved and novel process for fabricating unique interconnect conducting lines and via contact structures has been developed. Using this special self aligned dual damascene process, special interconnect conducting lines and via contacts are formed which have low parasitic capacitance (low RC time constants). The invention incorporates the use of double etch stop or etch barrier layers. The key process step of this invention is special patterning of the etch stop or etch barrier layer. This is the advantage of this invention over Prior Art processes that need a continuous, thick stop layer that has a etching selectivity to silicon dioxide, SiO.sub.2 (increasing parasitic capacitance). However, in this invention a self aligned dual damascene process and structure is presented that is easier to process and has low parasitic capacitance. Repeating the self aligned dual damascene processing steps, constructs multilevel conducting structures. This process reduces processing time, reduces the cost of ownership, (compatible with low dielectric constant materials) and at the same time produces a product with superior lines and via contact structures (by use of special etch stop or etch barrier layer patterning), hence improving reliability.

    摘要翻译: 已经开发了用于制造独特的互连导线和通孔接触结构的改进和新颖的工艺。 使用这种特殊的自对准双镶嵌工艺,形成了具有低寄生电容(低RC时间常数)的特殊互连导线和通孔触点。 本发明包括使用双蚀刻停止层或蚀刻阻挡层。 本发明的关键工艺步骤是蚀刻停止或蚀刻阻挡层的特殊图案化。 这是本发明优于现有技术方法的优点,其需要具有对二氧化硅,SiO 2(增加寄生电容)的蚀刻选择性的连续的厚的停止层。 然而,在本发明中,提出了一种易于处理并具有低寄生电容的自对准双镶嵌工艺和结构。 重复自对准双镶嵌加工步骤,构建多层导电结构。 这个过程减少了处理时间,降低了所有权成本(与低介电常数材料兼容),同时产生了具有优异线条和通孔接触结构的产品(通过使用特殊的蚀刻阻挡层或蚀刻阻挡层图案),因此 提高可靠性。

    Method of manufacturing a contact interconnection layer containing a metal and nitrogen by atomic layer deposition for deep sub-micron semiconductor technology
    14.
    发明授权
    Method of manufacturing a contact interconnection layer containing a metal and nitrogen by atomic layer deposition for deep sub-micron semiconductor technology 有权
    通过用于深亚微米半导体技术的原子层沉积来制造包含金属和氮的接触互连层的方法

    公开(公告)号:US07235482B2

    公开(公告)日:2007-06-26

    申请号:US10657505

    申请日:2003-09-08

    IPC分类号: H01L21/44

    摘要: An atomic layer deposition method is used to deposit a TiN or TiSiN film having a thickness of about 50 nm or less on a substrat. A titanium precursor which is tetrakis(dimethylamido)titanium (TDMAT), tetrakis(diethylamido)titanium (TDEAT), or Ti{OCH(CH3)2}4 avoids halide contamination from a titanium halide precursor and is safer to handle than a titanium nitrate. After a monolayer of the titanium precursor is deposited on a substrate, a nitrogen containing reactant is introduced to form a TiN monolayer which is followed by a second purge. For TiSiN, a silicon source gas is fed into the process chamber after the TiN monolayer formation. The process is repeated several times to produce a composite layer comprised of a plurality of monolayers that fills a contact hole. The ALD method is cost effective and affords an interconnect with lower impurity levels and better step coverage than conventional PECVD or CVD processes.

    摘要翻译: 使用原子层沉积方法在基底上沉积厚度约为50nm或更小的TiN或TiSiN膜。 作为四(二甲基氨基)钛(TDMAT),四(二乙基氨基)钛(TDEAT)或Ti(OCH 2 CH 3)2) 4避免了来自卤化钛前体的卤化物污染,并且比硝酸钛更安全。 将钛前体的单层沉积在基底上之后,引入含氮反应物以形成TiN单层,随后进行第二次吹扫。 对于TiSiN,在TiN单层形成之后,将硅源气体进料到处理室中。 该过程重复几次以产生由填充接触孔的多个单层组成的复合层。 ALD方法具有成本效益,并且提供了比常规PECVD或CVD工艺更低的杂质水平和更好的阶梯覆盖的互连。

    Loadlock
    17.
    发明申请
    Loadlock 审中-公开
    负载锁

    公开(公告)号:US20050097769A1

    公开(公告)日:2005-05-12

    申请号:US10668291

    申请日:2003-09-24

    IPC分类号: H01L21/677 F26B13/30

    CPC分类号: H01L21/67781

    摘要: A loadlock. The loadlock for wafers includes a chamber, a pedestal, a retractable shaft, and a bellows. The chamber has a plurality of walls and a bottom surface. The pedestal supports a cassette and is disposed in the chamber. The retractable shaft has a top end and a bottom end. The top end is connected to the pedestal and the bottom end is connected to the bottom surface as a reference for positioning the pedestal. The bellows has a first end and a second end. The first end is disposed on the pedestal and the second end is sealed at the bottom end of the retractable shaft. Preferably, the retractable shaft is fully enclosed by the bellows.

    摘要翻译: 一个加载锁 用于晶片的负荷锁包括一个腔室,一个基座,一个伸缩轴和一个波纹管。 腔室具有多个壁和底面。 基座支撑盒并设置在腔室中。 伸缩轴具有顶端和底端。 顶端连接到基座,底端连接到底面作为基座的基准。 波纹管具有第一端和第二端。 第一端设置在基座上,第二端在可伸缩轴的底端被密封。 优选地,可伸缩轴被波纹管完全包围。

    Method of manufacturing a contact interconnection layer containing a metal and nitrogen by atomic layer deposition for deep sub-micron semiconductor technology
    18.
    发明申请
    Method of manufacturing a contact interconnection layer containing a metal and nitrogen by atomic layer deposition for deep sub-micron semiconductor technology 有权
    通过用于深亚微米半导体技术的原子层沉积来制造包含金属和氮的接触互连层的方法

    公开(公告)号:US20050054196A1

    公开(公告)日:2005-03-10

    申请号:US10657505

    申请日:2003-09-08

    摘要: An atomic layer deposition method is used to deposit a TiN or TiSiN film having a thickness of about 50 nm or less on a substrate. A titanium precursor which is tetrakis(dimethylamido)titanium (TDMAT), tetrakis(diethylamido)titanium (TDEAT), or Ti{OCH(CH3)2}4 avoids halide contamination from a titanium halide precursor and is safer to handle than a titanium nitrate. After a monolayer of the titanium precursor is deposited on a substrate, a nitrogen containing reactant is introduced to form a TiN monolayer which is followed by a second purge. For TiSiN, a silicon source gas is fed into the process chamber after the TiN monolayer formation. The process is repeated several times to produce a composite layer comprised of a plurality of monolayers that fills a contact hole. The ALD method is cost effective and affords an interconnect with lower impurity levels and better step coverage than conventional PECVD or CVD processes.

    摘要翻译: 使用原子层沉积方法在衬底上沉积厚度约为50nm或更小的TiN或TiSiN膜。 四(二甲基氨基)钛(TDMAT),四(二乙基酰氨基)钛(TDEAT)或Ti {OCH(CH 3)2} 4)的钛前体避免了卤化钛前体的卤化物污染,并且比硝酸钛更安全 。 将钛前体的单层沉积在基底上之后,引入含氮反应物以形成TiN单层,随后进行第二次吹扫。 对于TiSiN,在TiN单层形成之后,将硅源气体进料到处理室中。 该过程重复几次以产生由填充接触孔的多个单层组成的复合层。 ALD方法具有成本效益,并且提供了比常规PECVD或CVD工艺更低的杂质水平和更好的阶梯覆盖的互连。