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    • 4. 发明申请
    • METHOD FOR MANUFACTURING SOI SUBSTRATE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
    • 制造SOI衬底的方法和制造半导体器件的方法
    • US20100173472A1
    • 2010-07-08
    • US12648631
    • 2009-12-29
    • Yoji NAGANO
    • Yoji NAGANO
    • H01L21/762
    • H01L21/76254
    • A method for manufacturing an SOI substrate and a method for manufacturing a semiconductor device, in each of which peeling of a single crystal semiconductor layer from an end portion due to laser irradiation is suppressed, are provided. A fragile region is formed in a single crystal semiconductor substrate by irradiating the single crystal semiconductor substrate with an accelerated ion, the single crystal semiconductor substrate is bonded to a base substrate with an insulating layer interposed therebetween, a single crystal semiconductor layer is formed over the base substrate with the insulating layer interposed therebetween by splitting the single crystal semiconductor substrate at the fragile region, an end portion of the single crystal semiconductor layer is removed, and a surface of the single crystal semiconductor layer whose end portion has been removed is irradiated with a laser beam.
    • 提供了SOI基板的制造方法以及半导体装置的制造方法,其中抑制了由于激光照射而导致的单晶半导体层从端部的剥离。 通过用加速离子照射单晶半导体衬底,在单晶半导体衬底中形成易碎区域,将单晶半导体衬底与绝缘层接合到基底衬底上,形成单晶半导体层 通过在脆性区域分割单晶半导体衬底而将绝缘层插入其间的基底衬底,去除单晶半导体层的端部,并且将其端部已被去除的单晶半导体层的表面照射 激光束。
    • 8. 发明申请
    • METHOD OF MANUFACTURING SOI SUBSTRATE
    • 制造SOI衬底的方法
    • US20110136320A1
    • 2011-06-09
    • US13019626
    • 2011-02-02
    • Shunpei YAMAZAKIEiji HIGAYoji NAGANOTatsuya MIZOIAkihisa SHIMOMURA
    • Shunpei YAMAZAKIEiji HIGAYoji NAGANOTatsuya MIZOIAkihisa SHIMOMURA
    • H01L21/762
    • H01L21/76254H01L21/2007H01L21/268H01L21/302H01L21/84
    • To provide an SOI substrate with an SOI layer that can be put into practical use, even when a substrate with a low allowable temperature limit such as a glass substrate is used, and to provide a semiconductor substrate formed using such an SOI substrate. In order to bond a single-crystalline semiconductor substrate to a base substrate such as a glass substrate, a silicon oxide film formed by CVD with organic silane as a source material is used as a bonding layer, for example. Accordingly, an SOL substrate with a strong bond portion can be formed even when a substrate with an allowable temperature limit of less than or equal to 700° C. such as a glass substrate is used. A semiconductor layer separated from the single-crystalline semiconductor substrate is irradiated with a laser beam so that the surface of the semiconductor layer is planarized and the crystallinity thereof is recovered.
    • 为了提供具有可实际使用的SOI层的SOI衬底,即使使用诸如玻璃衬底的耐受温度低的衬底的衬底,并且提供使用这种SOI衬底形成的半导体衬底。 为了将单晶半导体衬底接合到诸如玻璃衬底的基底衬底,例如通过用有机硅烷作为源材料通过CVD形成的氧化硅膜被用作接合层。 因此,即使使用具有小于等于700℃的容许温度限制的基板,例如玻璃基板,也可以形成具有强结合部的SOL基板。 用激光束照射与单晶半导体衬底分离的半导体层,使得半导体层的表面平坦化并且其结晶度被回收。