Methods for fabricating semiconductor memory with process induced strain
    1.
    发明授权
    Methods for fabricating semiconductor memory with process induced strain 有权
    用工艺诱导应变制造半导体存储器的方法

    公开(公告)号:US08691648B1

    公开(公告)日:2014-04-08

    申请号:US13168711

    申请日:2011-06-24

    IPC分类号: H01L21/336

    摘要: Non-volatile semiconductor memories and methods of fabricating the same to improve performance thereof are provided. In one embodiment, the method includes: (i) forming a gate for a non-volatile memory transistor on a surface of a substrate overlaying a channel region formed therein, the gate including a charge trapping layer; and (ii) forming a strain inducing structure over the gate of the non-volatile memory transistor to increase charge retention of the charge trapping layer. Preferably, the memory transistor is a silicon-oxide-nitride-oxide-silicon (SONOS) transistor comprising a SONOS gate stack. More preferably, the memory also includes a logic transistor on the substrate, and the step of forming a strain inducing structure comprises the step of forming the strain inducing structure over the logic transistor. Other embodiments are also disclosed.

    摘要翻译: 提供非易失性半导体存储器及其制造方法以改善其性能。 在一个实施例中,该方法包括:(i)在覆盖其中形成的沟道区的衬底的表面上形成用于非易失性存储晶体管的栅极,栅极包括电荷俘获层; 和(ii)在非易失性存储晶体管的栅极上形成应变诱导结构,以增加电荷俘获层的电荷保留。 优选地,存储晶体管是包括SONOS栅极堆叠的氧化硅 - 氧化物 - 氮化物 - 氧化物 - 硅(SONOS)晶体管。 更优选地,存储器还包括在衬底上的逻辑晶体管,并且形成应变诱导结构的步骤包括在逻辑晶体管上形成应变诱导结构的步骤。 还公开了其他实施例。

    Method for forming image sensor with shield structures
    2.
    发明授权
    Method for forming image sensor with shield structures 有权
    用屏蔽结构形成图像传感器的方法

    公开(公告)号:US08168933B2

    公开(公告)日:2012-05-01

    申请号:US13227376

    申请日:2011-09-07

    IPC分类号: H01L27/00

    摘要: An image sensor having shield structures and methods of forming the same are provided. Generally, the image sensor includes: (i) substrate having at least one photosensitive element formed therein; (ii) a dielectric layer overlying the substrate and the photosensitive element; and (iii) an annular reflective waveguide disposed in the dielectric layer above the photosensitive element to reduce cross-talk between adjacent elements of the sensor while increasing sensitivity of the sensor. In certain embodiments, the sensor further includes a photoshield disposed in the dielectric above the photosensitive element and about the waveguide to further reduce the possibility of cross-talk. Other embodiments are also disclosed.

    摘要翻译: 提供具有屏蔽结构的图像传感器及其形成方法。 通常,图像传感器包括:(i)具有形成在其中的至少一个感光元件的基板; (ii)覆盖所述基底和所述感光元件的电介质层; 和(iii)设置在光敏元件上方的电介质层中的环形反射波导,以减小传感器的相邻元件之间的串扰,同时增加传感器的灵敏度。 在某些实施例中,传感器还包括设置在感光元件上方的电介质中以及围绕波导的光电二极管,以进一步降低串扰的可能性。 还公开了其他实施例。

    Oxide formation in a plasma process
    3.
    发明授权
    Oxide formation in a plasma process 有权
    在等离子体工艺中形成氧化物

    公开(公告)号:US08119538B1

    公开(公告)日:2012-02-21

    申请号:US11836683

    申请日:2007-08-09

    IPC分类号: H01L21/31

    摘要: A method of making a semiconductor structure is provided. The method includes forming a dielectric layer using a high density plasma oxidation process. The dielectric layer is on a storage layer and the thickness of the storage layer is reduced during the high density plasma oxidation process.

    摘要翻译: 提供制造半导体结构的方法。 该方法包括使用高密度等离子体氧化工艺形成介电层。 电介质层在存储层上,并且在高密度等离子体氧化过程中存储层的厚度减小。

    Methods for depositing tungsten after surface treatment
    4.
    发明授权
    Methods for depositing tungsten after surface treatment 有权
    表面处理后沉积钨的方法

    公开(公告)号:US07749815B2

    公开(公告)日:2010-07-06

    申请号:US11768647

    申请日:2007-06-26

    申请人: Jeong Soo Byun

    发明人: Jeong Soo Byun

    IPC分类号: H01L21/82

    摘要: In one embodiment, a method for forming a tungsten-containing material on a substrate is provided which includes positioning a substrate containing a metal nitride barrier layer within a process chamber and exposing the substrate to a reagent gas containing diborane to form a reagent layer on the metal nitride barrier layer. The method further provides exposing the substrate sequentially to a tungsten precursor and a reductant to form a nucleation layer during an atomic layer deposition (ALD) process and subsequently depositing a bulk layer over the nucleation layer. The bulk layer may contain copper, but generally contains tungsten deposited by a chemical vapor deposition (CVD) process. In some examples, the bulk layer may be used to fill apertures within the substrate.

    摘要翻译: 在一个实施例中,提供了一种用于在基板上形成含钨材料的方法,其包括将包含金属氮化物阻挡层的基板定位在处理室内,并将基板暴露于含有乙硼烷的反应气体上,以形成试剂层 金属氮化物阻挡层。 该方法进一步提供了在原子层沉积(ALD)工艺期间将衬底依次暴露于钨前体和还原剂以形成成核层,随后在成核层上沉积体层。 本体层可以包含铜,但通常包含通过化学气相沉积(CVD)工艺沉积的钨。 在一些实例中,本体层可用于填充衬底内的孔。

    Formation of boride barrier layers using chemisorption techniques
    7.
    发明授权
    Formation of boride barrier layers using chemisorption techniques 有权
    使用化学吸附技术形成硼化物阻挡层

    公开(公告)号:US07501343B2

    公开(公告)日:2009-03-10

    申请号:US11739545

    申请日:2007-04-24

    IPC分类号: H01L21/44

    摘要: In one embodiment, a method for depositing a boride-containing barrier layer on a substrate is provided which includes exposing the substrate sequentially to a boron-containing compound and a metal precursor to form a first boride-containing layer during a first sequential chemisorption process and exposing the substrate to the boron-containing compound, the metal precursor, and a second precursor to form a second boride-containing layer on the first boride-containing layer during a second sequential chemisorption process. In one example, the metal precursor contains tungsten hexafluoride and the boron-containing compound contains diborane. In another embodiment, a contact layer is deposited over the second boride-containing layer. The contact layer may contain tungsten and be deposited by a chemical vapor deposition process. Alternatively, the contact layer may contain copper and be deposited by a physical vapor deposition process. In other examples, boride-containing layers may be formed at a temperature of less than about 500° C.

    摘要翻译: 在一个实施例中,提供了一种用于在衬底上沉积含硼化物阻挡层的方法,其包括在第一顺序化学吸附过程期间将衬底依次暴露于含硼化合物和金属前体以形成第一含硼化物层, 在第二顺序化学吸附过程期间,将基底暴露于含硼化合物,金属前体和第二前体,以在第一含硼化物层上形成第二含硼化物层。 在一个实例中,金属前体含有六氟化钨,含硼化合物含有乙硼烷。 在另一个实施方案中,在第二含硼化物层上沉积接触层。 接触层可以含有钨并通过化学气相沉积工艺进行沉积。 或者,接触层可以含有铜并通过物理气相沉积工艺进行沉积。 在其他实例中,含硼化物的层可以在小于约500℃的温度下形成。