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    • 8. 发明公开
    • TEXTURING MONOCRYSTALLINE SILICON SUBSTRATES
    • TEXTURIERUNG VON MONOKRISTALLINEN SILICIUMSUBSTRATEN
    • EP3139416A1
    • 2017-03-08
    • EP15184061.8
    • 2015-09-07
    • IMEC VZW
    • JOHN, JoachimHASLINGER, Michael
    • H01L31/0236H01L31/18H01L21/02H01L21/306
    • A method for preparing a monocrystalline silicon substrate surface for a subsequent texturing step, the method comprising:
      a. removing contaminants from the surface by contacting the surface with a cleaning solution;
      b. etching the pre-cleaned surface with an aqueous solution comprising from 12 to 19% by weight, of KOH and/or NaOH;
      c. rinsing the etched surface with an aqueous medium at pH from 7 to 10; and
      d. contacting the rinsed etched surface with ozonated deionized water at pH from 2 to 4.5, thereby converting the rinsed etched surface into a prepared surface.
      A method for texturing the prepared surface is also provided.
    • 一种制备用于随后的纹理化步骤的单晶硅衬底表面的方法,所述方法包括:a。 通过使表面与清洁溶液接触来从表面去除污染物; 湾 用包含12至19重量%的KOH和/或NaOH的水溶液蚀刻预清洁的表面; C。 用pH为7至10的水性介质漂洗蚀刻的表面; 和d。 使经冲洗的蚀刻表面与pH为2至4.5的臭氧化去离子水接触,从而将经冲洗的蚀刻表面转化为制备的表面。 还提供了用于纹理化所制备的表面的方法。