Method for removing hard masks on gates in semiconductor manufacturing process
    1.
    发明授权
    Method for removing hard masks on gates in semiconductor manufacturing process 有权
    在半导体制造工艺中去除门上的硬掩模的方法

    公开(公告)号:US08796084B2

    公开(公告)日:2014-08-05

    申请号:US12776011

    申请日:2010-05-07

    摘要: A method for removing hard masks on gates in a semiconductor manufacturing process is conducted as follows. First of all, a first gate and a second gate with hard masks are formed on a semiconductor substrate, wherein the second gate is larger than the first gate. The first gate and second gate could be associated with silicon-germanium (SiGe) source and drain regions to form p-type transistors. Next, a photoresist layer is deposited, and an opening of the photoresist layer is formed on the hard mask of the second gate. Then, the photoresist layer on the first and second gates is removed completely by etching back. Because there is no photoresist residue, the hard masks on the first and second gates can be removed completely afterwards.

    摘要翻译: 如下进行半导体制造工序中的门上去除硬掩模的方法。 首先,在半导体衬底上形成具有硬掩模的第一栅极和第二栅极,其中第二栅极大于第一栅极。 第一栅极和第二栅极可以与硅 - 锗(SiGe)源极和漏极区域相关联以形成p型晶体管。 接下来,沉积光致抗蚀剂层,并且在第二栅极的硬掩模上形成光致抗蚀剂层的开口。 然后,通过蚀刻完全去除第一和第二栅极上的光致抗蚀剂层。 因为没有光致抗蚀剂残留物,所以第一和第二栅极上的硬掩模可以被完全去除。

    Photo alignment mark for a gate last process
    2.
    发明授权
    Photo alignment mark for a gate last process 有权
    最后一个进程的照片对齐标记

    公开(公告)号:US08598630B2

    公开(公告)日:2013-12-03

    申请号:US12470333

    申请日:2009-05-21

    IPC分类号: H01L23/52

    摘要: A semiconductor device is provided which includes a semiconductor substrate having a first region and a second region, the first and second regions being isolated from each other, a plurality of transistors formed in the first region, an alignment mark formed in the second region, the alignment mark having a plurality of active regions in a first direction, and a dummy gate structure formed over the alignment mark, the dummy gate structure having a plurality of lines in a second direction different from the first direction.

    摘要翻译: 提供一种半导体器件,其包括具有第一区域和第二区域的半导体衬底,第一和第二区域彼此隔离,形成在第一区域中的多个晶体管,形成在第二区域中的对准标记, 对准标记具有在第一方向上的多个有效区域,以及形成在所述对准标记上的伪栅极结构,所述伪栅极结构在与所述第一方向不同的第二方向上具有多条线。

    Dishing-free gap-filling with multiple CMPs

    公开(公告)号:US08552522B2

    公开(公告)日:2013-10-08

    申请号:US13151666

    申请日:2011-06-02

    IPC分类号: H01L21/70

    CPC分类号: H01L21/76883 H01L21/76229

    摘要: A method of forming an integrated circuit structure includes providing a semiconductor substrate; forming patterned features over the semiconductor substrate, wherein gaps are formed between the patterned features; filling the gaps with a first filling material, wherein the first filling material has a first top surface higher than top surfaces of the patterned features; and performing a first planarization to lower the top surface of the first filling material, until the top surfaces of the patterned features are exposed. The method further includes depositing a second filling material, wherein the second filling material has a second top surface higher than the top surfaces of the patterned features; and performing a second planarization to lower the top surface of the second filling material, until the top surfaces of the patterned features are exposed.

    Semiconductor device and method of fabricating same
    4.
    发明授权
    Semiconductor device and method of fabricating same 有权
    半导体装置及其制造方法

    公开(公告)号:US08461629B2

    公开(公告)日:2013-06-11

    申请号:US13178755

    申请日:2011-07-08

    IPC分类号: H01L29/66

    摘要: A semiconductor device having a core device with a high-k gate dielectric and an I/O device with a silicon dioxide or other non-high-k gate dielectric, and a method of fabricating such a device. A core well and an I/O well are created in a semiconductor substrate and separated by an isolation structure. An I/O device is formed over the I/O well and has a silicon dioxide or a low-k gate dielectric. A resistor may be formed on an isolation structure adjacent to the core well. A core-well device such as a transistor is formed over the core well, and has a high-k gate dielectric. In some embodiments, a p-type I/O well and an n-type I/O well are created. In a preferred embodiment, the I/O device or devices are formed prior to forming the core device and protected with a sacrificial layer until the core device is fabricated.

    摘要翻译: 具有具有高k栅极电介质的核心器件和具有二氧化硅或其它非高k栅极电介质的I / O器件的半导体器件及其制造方法。 核心阱和I / O阱在半导体衬底中产生并被隔离结构隔开。 I / O器件形成在I / O阱上,并具有二氧化硅或低k栅极电介质。 可以在与芯井相邻的隔离结构上形成电阻器。 在核心阱上形成诸如晶体管的核心阱器件,并且具有高k栅极电介质。 在一些实施例中,产生p型I / O阱和n型I / O阱。 在优选实施例中,在形成核心器件之前形成I / O器件或器件,并用牺牲层进行保护,直到制造核心器件。

    Chemical mechanical polishing (CMP) method for gate last process
    5.
    发明授权
    Chemical mechanical polishing (CMP) method for gate last process 有权
    门最后工艺的化学机械抛光(CMP)方法

    公开(公告)号:US08390072B2

    公开(公告)日:2013-03-05

    申请号:US13156558

    申请日:2011-06-09

    摘要: A method for fabricating a semiconductor device is provided which includes providing a semiconductor substrate, forming a plurality of transistors, each transistor having a dummy gate structure, forming a contact etch stop layer (CESL) over the substrate including the dummy gate structures, forming a first dielectric layer to fill in a portion of each region between adjacent dummy gate structures, forming a chemical mechanical polishing (CMP) stop layer over the CESL and first dielectric layer, forming a second dielectric layer over the CMP stop layer, performing a CMP on the second dielectric layer that substantially stops at the CMP stop layer, and performing an overpolishing to expose the dummy gate structure.

    摘要翻译: 提供了一种制造半导体器件的方法,其包括提供半导体衬底,形成多个晶体管,每个晶体管具有虚拟栅极结构,在包括虚拟栅极结构的衬底上形成接触蚀刻停止层(CESL),形成 第一电介质层,以填充相邻虚拟栅极结构之间的每个区域的一部分,在CESL和第一介电层上形成化学机械抛光(CMP)阻挡层,在CMP停止层上形成第二介电层,对CMP 所述第二电介质层在所述CMP停止层处基本上停止,并且执行过度抛光以暴露所述伪栅极结构。

    E-fuse Structure Design in Electrical Programmable Redundancy for Embedded Memory Circuit
    10.
    发明申请
    E-fuse Structure Design in Electrical Programmable Redundancy for Embedded Memory Circuit 有权
    嵌入式存储器电路的电可编程冗余中的电熔丝结构设计

    公开(公告)号:US20120196434A1

    公开(公告)日:2012-08-02

    申请号:US13443550

    申请日:2012-04-10

    IPC分类号: H01L21/02

    摘要: An electrical fuse and a method of forming the same are presented. A first-layer conductive line is formed over a base material. A via is formed over the first-layer conductive line. The via preferably comprises a barrier layer and a conductive material. A second-layer conductive line is formed over the via. A first external pad is formed coupling to the first-layer conductive line. A second external pad is formed coupling to the second-layer conductive line. The via, the first conductive line and the second conductive line are adapted to be an electrical fuse. The electrical fuse can be burned out by applying a current. The vertical structure of the preferred embodiment is suitable to be formed in any layer.

    摘要翻译: 提出了电熔丝及其形成方法。 在基材上形成第一层导电线。 在第一层导电线上形成通孔。 通孔优选包括阻挡层和导电材料。 在通孔上形成第二层导电线。 第一外部焊盘形成为耦合到第一层导电线。 第二外部焊盘形成为耦合到第二层导电线。 通孔,第一导线和第二导线适于作为电熔丝。 电熔丝可以通过施加电流而烧坏。 优选实施例的垂直结构适合于形成任何层。