Wafer shape evaluating method and device producing method, wafer and wafer selecting method
    2.
    发明授权
    Wafer shape evaluating method and device producing method, wafer and wafer selecting method 有权
    晶圆形状评估方法及器件制造方法,晶片和晶圆选择方法

    公开(公告)号:US06828163B2

    公开(公告)日:2004-12-07

    申请号:US10203882

    申请日:2002-08-15

    IPC分类号: H01L2100

    摘要: There are provided a method and an apparatus for evaluating a wafer configuration which can accurately evaluate a peripheral portion of a wafer as compared with the conventional SFQR or the like, which comprises: measuring a configuration of a wafer at positions with a prescribed space within a surface of the wafer; providing a first region (W1) within the wafer surface for calculating a reference line or a reference plane from the measured wafer configuration; calculating a reference line (10a) or a reference plane (10b) in the first region (W1); providing a second region (W2) to be evaluated outside the first region; extrapolating the reference line (10a) or reference plane (10b) to the second region (W2); analyzing a difference between the configuration of the second region and the reference line or reference plane within the second region; and calculating the analyzed difference as surface characteristics.

    摘要翻译: 提供了一种用于评估晶片配置的方法和装置,该方法和装置可以与传统的SFQR等相比能够精确地评估晶片的周边部分,其包括:在晶片的内部具有规定空间的位置处测量晶片的构造 晶片表面; 在所述晶片表面内提供第一区域(W1),用于从测量的晶片配置计算参考线或参考平面; 在所述第一区域(W1)中计算参考线(10a)或参考平面(10b); 提供要在第一区域之外评估的第二区域(W2); 将参考线(10a)或参考平面(10b)外推到第二区域(W2); 分析第二区域的配置与第二区域内的参考线或参考平面之间的差异; 并计算分析的差异作为表面特征。

    Method of regenerating semiconductor wafer
    4.
    发明授权
    Method of regenerating semiconductor wafer 失效
    再生半导体晶片的方法

    公开(公告)号:US06706636B2

    公开(公告)日:2004-03-16

    申请号:US10175784

    申请日:2002-06-21

    IPC分类号: H01L21302

    摘要: A method of regenerating a semiconductor wafer which allows a used wafer, even if the wafer contains a crystal defect such as a COP, to be regenerated into a high-quality semiconductor wafer is provided. A used silicon wafer is polished in a step S1. Next, the used silicon wafer is immersed in mixed acids including at least two kinds of acids in a step S2. A surface treatment is performed on the used silicon wafer to planarize the surface of the used silicon wafer in a step S3. Then, a high temperature annealing process is performed in a step S4, to ultimately obtain a regenerate wafer. The high temperature annealing process includes either a first high temperature annealing process which is performed at a high temperature of 1200° C. or higher in an argon atmosphere for 30 to 60 minutes, or a second high temperature annealing process which is performed at a high temperature of 1200° C. or higher in a hydrogen atmosphere for 30 to 60 minutes.

    摘要翻译: 提供了即使将晶片包含诸如COP的晶体缺陷再生成高品质半导体晶片的再生半导体晶片再生方法也可以使用晶片。 在步骤S1中抛光使用的硅晶片。 接下来,在步骤S2中将所使用的硅晶片浸入包含至少两种酸的混合酸中。 在步骤S3中对使用的硅晶片进行表面处理以使所使用的硅晶片的表面平坦化。 然后,在步骤S4中进行高温退火处理,最终获得再生晶片。 高温退火工艺包括在氩气气氛中在1200℃或更高的高温下进行30至60分钟的第一高温退火工艺或在高温下进行的第二高温退火工艺 在氢气氛中温度为1200℃以上30〜60分钟。

    Semiconductor substrate, semiconductor device, and manufacturing method thereof
    7.
    发明授权
    Semiconductor substrate, semiconductor device, and manufacturing method thereof 失效
    半导体衬底,半导体器件及其制造方法

    公开(公告)号:US06656775B1

    公开(公告)日:2003-12-02

    申请号:US09668368

    申请日:2000-09-25

    IPC分类号: H01L2100

    CPC分类号: H01L29/66742 H01L29/78603

    摘要: A semiconductor substrate that suppresses not only auto doping but also warpage can be provided by disposing an oxide film (4) at a position in a semiconductor substrate (1), so as to be apart from a main surface (1a) and a reverse surface (1b). The oxide film (4) can be so disposed that it is apart not less than 200 nm from the reverse surface (1b), and extends throughout the semiconductor substrate (1) in a thickness of 400 to 1000 nm, by implanting oxygen ion from the reverse surface (1b), followed by annealing.

    摘要翻译: 可以通过在氧化膜(4)的半导体衬底(1)中的位置处设置氧化膜(4a)与主表面(1a)和反面 (1b)。 氧化膜(4)可以如此设置,使其与反面(1b)分开不小于200nm,并且通过从400nm到1000nm的厚度中的氧离子注入,遍及半导体衬底(1) 反面(1b),然后退火。