Methods for transferring a thin layer from a wafer having a buffer layer
    1.
    发明申请
    Methods for transferring a thin layer from a wafer having a buffer layer 有权
    从具有缓冲层的晶片转移薄层的方法

    公开(公告)号:US20050191825A1

    公开(公告)日:2005-09-01

    申请号:US11032844

    申请日:2005-01-10

    CPC分类号: H01L21/76259 H01L21/76254

    摘要: A method for transferring a layer of semiconductor material from a wafer is described. The wafer includes a support substrate and an upper surface that includes a buffer layer of a material having a first lattice parameter. In an embodiment, the technique includes growing a strained layer on the buffer layer. The strained layer is made of a semiconductor material having a nominal lattice parameter that is substantially different from the first lattice parameter, and it is grown to a thickness that is sufficiently thin to avoid relaxation of the strain therein. The method also includes growing a relaxed layer on the strained layer. The relaxed layer is made of silicon and has a concentration of at least one other semiconductor material that has a nominal lattice parameter that is substantially identical to the first lattice parameter. The technique also includes providing a weakened zone in the buffer layer, and supplying energy to detach a structure at the weakened zone. The structure includes a portion of the buffer layer, the strained layer and the relaxed layer. Lastly; the method includes enriching the concentration of the at least one other semiconductor material in the relaxed layer of the structure.

    摘要翻译: 描述了从晶片转移半导体材料层的方法。 晶片包括支撑基板和包括具有第一晶格参数的材料的缓冲层的上表面。 在一个实施例中,该技术包括在缓冲层上生长应变层。 应变层由具有与第一晶格参数基本不同的标称晶格参数的半导体材料制成,并且其生长到足够薄的厚度以避免其中的应变松弛。 该方法还包括在应变层上生长松弛层。 松弛层由硅制成,并且具有至少一种其它半导体材料的浓度,其具有基本上与第一晶格参数相同的标称晶格参数。 该技术还包括在缓冲层中提供弱化区域,并提供能量以在弱化区域分离结构。 该结构包括缓冲层的一部分,应变层和松弛层。 最后; 该方法包括在结构的松弛层中富集至少一种其它半导体材料的浓度。

    Recycling by mechanical means of a wafer comprising a multilayer structure after taking-off a thin layer thereof
    4.
    发明申请
    Recycling by mechanical means of a wafer comprising a multilayer structure after taking-off a thin layer thereof 有权
    通过机械方式回收利用包括多层结构在内的薄片的薄片

    公开(公告)号:US20050189323A1

    公开(公告)日:2005-09-01

    申请号:US11075272

    申请日:2005-03-07

    CPC分类号: H01L21/02032 H01L21/76254

    摘要: The invention relates to a method of re-forming a useful layer on a donor wafer after taking off a useful layer formed of a material chosen from among semiconductor materials. The donor wafer includes in succession a substrate and a taking-off structure, the taking-off structure includes the taken-off useful layer before taking-off. The method includes a removal of material involving a portion of the donor wafer on the side where the useful layer has been taken off. The material is removed by mechanical means so as to preserve a portion of the taking-off structure to form at least one other useful layer which can be taken off after re-forming, without adding additional material to the wafer.

    摘要翻译: 本发明涉及一种在从由半导体材料中选出的材料形成的有用层之后,在施主晶片上重新形成有用层的方法。 施主晶片连续地包括基板和起飞结构,起飞结构包括起飞前的起飞有用层。 该方法包括去除涉及在有用层被取下的一侧的施主晶片的一部分的材料。 通过机械方法去除材料,以便保留一部分起飞结构以形成至少一个其它可用的层,其可以在重新形成之后取下,而不向晶片添加额外的材料。

    Indirect bonding with disappearance of bonding layer
    7.
    发明申请
    Indirect bonding with disappearance of bonding layer 失效
    间接键合与粘结层消失

    公开(公告)号:US20050070078A1

    公开(公告)日:2005-03-31

    申请号:US10753173

    申请日:2004-01-06

    摘要: The invention provides a method of producing a structure of a thin layer of semiconductor material on a support substrate. The thin layer is obtained from a donor substrate and includes an upper layer of semiconductor material. The method includes forming on the upper layer a bonding layer of a material that accepts diffusion from an element of the material of the upper layer, bonding the donor substrate from the side on which the bonding layer is formed on the upper layer to the support substrate, and diffusing the element from the upper layer into the bonding layer to homogenize the concentration of the element in the bonding layer and the upper layer. The result is that the thin layer of the structure is joined by the bonding layer to the upper layer.

    摘要翻译: 本发明提供一种在支撑基板上制造半导体材料薄层结构的方法。 薄层从供体基底获得并且包括半导体材料的上层。 该方法包括在上层上形成接受来自上层材料的元素的扩散的材料的接合层,将施主衬底从上层上形成接合层的一侧粘合到支撑衬底上 并且将元件从上层扩散到接合层中以使结合层和上层中的元素的浓度均匀化。 结果是结构的薄层通过粘合层连接到上层。

    METHOD OF MANUFACTURING A SEMICONDUCTOR HETEROSTRUCTURE
    8.
    发明申请
    METHOD OF MANUFACTURING A SEMICONDUCTOR HETEROSTRUCTURE 有权
    制造半导体结构的方法

    公开(公告)号:US20080132031A1

    公开(公告)日:2008-06-05

    申请号:US11674392

    申请日:2007-02-13

    IPC分类号: H01L21/00

    摘要: A method for manufacturing a semiconductor heterostructure by first manufacturing a donor wafer having a first substrate with a first in-plane lattice parameter, a spatially graded buffer layer having a second in-plane lattice parameter, and a strained smoothing layer of a semiconductor material having a third in-plane lattice parameter which has a value between that of the first and second lattice parameters. A top layer is formed on the ungraded layer a top layer of a semiconductor material having a top surface, optionally with a superficial layer present on the top surface and having a thickness that is equal to or smaller than 10 nanometers. Next, a handle wafer of a second substrate having an insulator layer thereon is bonded with the donor wafer in such way that (a) the insulator layer of the handle wafer is bonded directly onto the top surface of the top layer of the donor wafer, or (b) the insulator layer of the handle wafer is bonded onto the superficial layer.

    摘要翻译: 一种半导体异质结构的制造方法,首先制造具有第一面内晶格参数的第一衬底的施主晶片,具有第二面内晶格参数的空间渐变缓冲层,以及半导体材料的应变平滑化层, 具有第一和第二格子参数之间的值的第三平面晶格参数。 顶层在未分级层上形成具有顶表面的半导体材料的顶层,任选具有位于顶表面上的表层,并具有等于或小于10纳米的厚度。 接下来,其上具有绝缘体层的第二衬底的处理晶片与施主晶片接合,使得(a)把手晶片的绝缘体层直接接合到施主晶片顶层的顶表面上, 或者(b)把手晶片的绝缘体层结合到表面层上。

    Method for concurrently producing at least a pair of semiconductor structures that each include at least one useful layer on a substrate
    9.
    发明申请
    Method for concurrently producing at least a pair of semiconductor structures that each include at least one useful layer on a substrate 失效
    用于同时产生至少一对半导体结构的方法,每个半导体结构在衬底上包括至少一个有用层

    公开(公告)号:US20060286770A1

    公开(公告)日:2006-12-21

    申请号:US11509047

    申请日:2006-08-24

    IPC分类号: H01L21/30 H01L21/46

    CPC分类号: H01L21/76254 Y10S438/977

    摘要: A method for producing a semiconductor structure that includes at least one useful layer on a substrate. This method includes providing a source substrate with a zone of weakness therein that defines a relatively thick useful layer between the zone of weakness and a front face of the source substrate; bonding the front face of the source substrate to a support substrate and detaching the useful layer from the source substrate at the zone of weakness to transfer the useful layer to the support substrate; implanting atomic species into a free face of the useful layer to a controlled mean implantation depth therein to form a zone of weakness within the useful layer that defines front and rear useful layers, with the rear useful layer contacting the source substrate and the front useful layer containing a greater concentration of defects; bonding a stiffening substrate to the free face of the front useful layer after implantation of the atomic species; and detaching the front useful layer from the rear useful layer along the zone of weakness to form a semiconductor structure comprising the support substrate and the rear useful layer thereon. The structures obtained can be used in the fields of electronics, optoelectronics or optics.

    摘要翻译: 一种用于制造半导体结构的方法,所述半导体结构在衬底上包括至少一个有用层。 该方法包括提供源极基底中的弱化区域,其在弱化区域和源极基底的前面之间限定相对较厚的有用层; 将源极基板的正面粘合到支撑基板上,并在弱化区域将有用层与源极基板分离,以将有用层转移到支撑基板; 将原子物质植入有用层的自由面中,以在其中形成受控的平均注入深度,以在限定前后有用层的有用层内形成弱化区,其中后部有用层与源极基底和前部有用层接触 含有较大浓度的缺陷; 在加入原子物质之后将加强基底粘合到前有用层的自由面上; 并且沿着弱化区从后部有用层分离前部有用层,以形成包括支撑基板和其上的后部有用层的半导体结构。 所获得的结构可用于电子学,光电子学或光学领域。

    Method of reducing roughness of a thick insulating layer
    10.
    发明申请
    Method of reducing roughness of a thick insulating layer 有权
    降低厚绝缘层粗糙度的方法

    公开(公告)号:US20070020947A1

    公开(公告)日:2007-01-25

    申请号:US11481701

    申请日:2006-07-05

    IPC分类号: H01L21/31

    摘要: A method for reducing roughness of an exposed surface of an insulator layer on a substrate, by depositing an insulator layer on a substrate wherein the insulator layer includes an exposed rough surface opposite the substrate; treating the first substrate to form a zone of weakness beneath the insulator layer; and smoothing the exposed rough surface of the insulator layer by exposure to a gas plasma in a chamber. The chamber contains therein a gas at a pressure of greater than 0.25 Pa but less than 30 Pa, and the gas plasma is created using a radio frequency generator applying to the insulator layer a power density greater than 0.6 W/cm2 but less than 10 W/cm2 for at least 10 seconds to less than 200 seconds. Substrate bonding and layer transfer may be carried out subsequently to transfer the thin layer of substrate to the insulator layer and to a second substrate.

    摘要翻译: 一种通过在衬底上沉积绝缘体层来减小衬底上的绝缘体层的暴露表面的粗糙度的方法,其中绝缘体层包括与衬底相对的暴露的粗糙表面; 处理所述第一衬底以在所述绝缘体层下方形成弱化区; 以及通过暴露于室中的气体等离子体来平滑所述绝缘体层的暴露的粗糙表面。 该室中含有大于0.25Pa但小于30Pa的压力的气体,并且使用射频发生器产生气体等离子体,所述射频发生器施加到绝缘体层,功率密度大于0.6W / cm 2, 但小于10W / cm 2,持续至少10秒至小于200秒。 衬底结合和层转移可以随后进行以将衬底的薄层转移到绝缘体层和第二衬底。