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    • 1. 发明授权
    • Interface treatment method for germanium-based device
    • 锗基装置的界面处理方法
    • US08632691B2
    • 2014-01-21
    • US13702562
    • 2012-06-14
    • Ru HuangMin LiXia AnMing LiMeng LinXing Zhang
    • Ru HuangMin LiXia AnMing LiMeng LinXing Zhang
    • B44C1/22C03C15/00C03C25/68C23F1/00C25F3/00
    • H01L21/02052H01L21/306
    • Disclosed herein is an interface treatment method for germanium-based device, which belongs to the field of manufacturing technologies of ultra large scaled integrated (ULSI) circuits. In the method, the natural oxide layer on the surface of the germanium-based substrate is removed by using a concentrated hydrochloric acid solution having a mass percentage concentration of 15%˜36%, and dangling bonds of the surface are performed a passivation treatment by using a diluted hydrochloric acid solution having a mass percentage concentration of 5%˜10% so as to form a stable passivation layer on the surface. This method makes a good foundation for depositing a high-K (high dielectric constant) gate dielectric on the surface of the germanium-based substrate after cleaning and passivating, enhances quality of the interface between the gate dielectric and the substrate, and improves the electrical performance of germanium-based MOS device.
    • 本文公开了一种锗系器件的接口处理方法,属于超大规模集成(ULSI)电路制造技术领域。 在该方法中,通过使用质量百分比浓度为15%〜36%的浓盐酸溶液除去锗系基板表面上的天然氧化物层,并且通过使表面的悬空键进行钝化处理 使用质量百分比浓度为5%〜10%的稀盐酸溶液,以在表面上形成稳定的钝化层。 该方法为清洗和钝化后在锗基基板表面上沉积高K(高介电常数)栅极电介质提供了良好的基础,提高了栅极电介质和基板之间界面的质量,改善了电气 锗系MOS器件的性能。
    • 2. 发明申请
    • INTERFACE TREATMENT METHOD FOR GERMANIUM-BASED DEVICE
    • 用于基于锗的器件的接口处理方法
    • US20130309875A1
    • 2013-11-21
    • US13702562
    • 2012-06-14
    • Ru HuangMin LiXia AnMing LiMeng LinXing Zhang
    • Ru HuangMin LiXia AnMing LiMeng LinXing Zhang
    • H01L21/02
    • H01L21/02052H01L21/306
    • Disclosed herein is an interface treatment method for germanium-based device, which belongs to the field of manufacturing technologies of ultra large scaled integrated (ULSI) circuits. In the method, the natural oxide layer on ther surface of the germanium-based substrate is removed by using a concentrated hydrochloric acid solution having a mass percentage concentration of 15%˜36%, and dangling bonds of the surface are performed a passivation treatment by using a diluted hydrochloric acid solution having a mass percentage concentration of 5%˜10% so as to form a stable passivation layer on the surface. This method makes a good foundation for depositing a high-K (high dielectric constant) gate dielectric on the surface of the germanium-based substrate after cleaning and passivating, enhances quality of the interface between the gate dielectric and the substrate, and improves the electrical performance of germanium-based MOS device.
    • 本文公开了一种锗系器件的接口处理方法,属于超大规模集成(ULSI)电路制造技术领域。 在该方法中,通过使用质量百分比浓度为15%〜36%的浓盐酸溶液除去锗基底板的表面上的天然氧化物层,并且通过以下方式进行钝化处理: 使用质量百分比浓度为5%〜10%的稀盐酸溶液,以在表面上形成稳定的钝化层。 该方法为清洗和钝化后在锗基基板表面上沉积高K(高介电常数)栅极电介质提供了良好的基础,提高了栅极电介质和基板之间界面的质量,改善了电气 锗系MOS器件的性能。