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    • 2. 发明授权
    • Method for fabricating recrystallized semiconductor film
    • 用于制备重晶体半导体膜的方法
    • US5228948A
    • 1993-07-20
    • US802481
    • 1991-12-05
    • Mikio Deguchi
    • Mikio Deguchi
    • H01L21/20H01L21/225H01L21/84
    • H01L21/2022H01L21/2007H01L21/2254Y10S117/913
    • A method for fabricating a recrystallized semiconductor film includes forming a polycrystalline or amorphous semiconductor film on a base having a melting point or softening temperature lower than the melting point of the semiconductor film, heating the base to melt it with a first heater, and melting the semiconductor film with a second heater and recrystallizing the semiconductor film while the base is molten. Thereby, generation of stress in the semiconductor film is prevented or reduced and the planarity of the semiconductor film is not damaged by distortion of the substrate and the temperature in the semiconductor film is uniform at the time of recrystallization. As a result, a recrystallized film with good crystallinity is obtained.
    • 制造再结晶半导体膜的方法包括在具有低于半导体膜的熔点的熔点或软化温度的基底上形成多晶或非晶半导体膜,加热基底以用第一加热器熔化, 具有第二加热器的半导体膜,并且在基底熔融时重新结晶半导体膜。 由此,防止或减少半导体膜中的应力的产生,并且半导体膜的平坦性不会由于基板的变形而损坏,并且半导体膜中的温度在再结晶时是均匀的。 结果,得到结晶度良好的再结晶膜。
    • 4. 发明授权
    • Method of producing thin-film solar cell
    • 制造薄膜太阳能电池的方法
    • US5397713A
    • 1995-03-14
    • US993021
    • 1992-12-18
    • Satoshi HamamotoMikio DeGuchi
    • Satoshi HamamotoMikio DeGuchi
    • H01L21/02H01L31/04H01L31/048H01L31/18
    • H01L31/048H01L31/0445H01L31/1804H01L31/1872H01L31/1896Y02E10/547Y02P70/521Y10S148/135
    • In a method of producing a thin-film solar cell, a graphite sheet in which the breaking stress in a thickness direction is smaller than the breaking stress in a direction perpendicular to the thickness direction is adhered to a heat resistant substrate, a semiconductor thin film is formed on the graphite sheet in a high temperature process, a second substrate for supporting the semiconductor thin film is adhered to the semiconductor thin film, and the graphite sheet is broken by applying a mechanical stress to the heat resistant substrate and the second substrate. The semiconductor thin film is reliably supported by the heat resistant substrate during high temperature processing and easily removed from the heat resistant substrate by breaking the graphite sheet. In addition, since the graphite sheet has an anisotropic breaking stress, fragments of the graphite sheet remaining on the surface of the semiconductor thin film are easily removed. As a result, a high quality thin film solar cell is produced reliably at low cost.
    • 在制造薄膜太阳能电池的方法中,在厚度方向上的断裂应力小于在与厚度方向垂直的方向上的断裂应力的石墨片粘附到耐热基板上,半导体薄膜 在高温工艺中形成在石墨片上,用于支撑半导体薄膜的第二基板粘附到半导体薄膜上,并且通过对耐热基板和第二基板施加机械应力来破坏石墨片。 半导体薄膜在耐高温处理时被耐热基板可靠地支撑,并且通过破坏石墨片而容易地从耐热基板上去除。 此外,由于石墨片具有各向异性的断裂应力,因此易于除去残留在半导体薄膜的表面上的石墨片的碎片。 结果,以低成本可靠地生产高品质的薄膜太阳能电池。
    • 9. 发明授权
    • Method of producing a semiconductor structure including a recrystallized
film
    • 制造包括再结晶膜的半导体结构的方法
    • US5467731A
    • 1995-11-21
    • US322375
    • 1994-10-13
    • Satoshi ArimotoNorio HayafujiMikio DeguchiSatoshi Hamamoto
    • Satoshi ArimotoNorio HayafujiMikio DeguchiSatoshi Hamamoto
    • H01L21/208H01L21/20C30B13/20
    • H01L21/2022
    • A method for producing a semiconductor structure including a semiconductor film formed on a semiconductor substrate body via an insulating film includes: laminating a first insulating film, a first semiconductor film, and a second insulating film on the semiconductor substrate successively; forming stripe-shaped second semiconductor films of predetermined width on the second insulating film arranged periodically at a predetermined interval and covering these second semiconductor films with a third insulating film; performing zone melting recrystallization of the first semiconductor film from one end of the substrate to the opposite end along the stripe direction of the stripe-shaped second semiconductor film; etching the third insulating film and portions of the second insulating film not sandwiched by the first and second semiconductor films; oxidizing portions of the second semiconductor film and the first semiconductor film exposed in the etching step and etching and removing the second insulating film remaining after the previous etching. Thus, a semiconductor substrate including a recrystallized semiconductor film having removed sub-grain-boundaries generated during the zone melting recrystallization, is obtained by fewer process steps than in the prior art.
    • 一种用于制造半导体结构的方法,该半导体结构包括通过绝缘膜形成在半导体衬底本体上的半导体膜,包括:依次在半导体衬底上层叠第一绝缘膜,第一半导体膜和第二绝缘膜; 在预定间隔周期性地布置的第二绝缘膜上形成预定宽度的条状第二半导体膜,并用第三绝缘膜覆盖这些第二半导体膜; 从所述基板的一端到所述条状的第二半导体膜的条带方向的相反端进行区域熔融再结晶的第一半导体膜; 蚀刻第三绝缘膜和未被第一和第二半导体膜夹持的第二绝缘膜的部分; 在蚀刻步骤中暴露的第二半导体膜和第一半导体膜的氧化部分,并蚀刻除去在先前蚀刻之后残留的第二绝缘膜。 因此,通过比现有技术更少的工艺步骤获得包括在区域熔融再结晶期间产生的去除亚晶界的再结晶半导体膜的半导体衬底。