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    • 2. 发明申请
    • QUANTIFICATION OF HYDROPHOBIC AND HYDROPHILIC PROPERTIES OF MATERIALS
    • 材料的疏水性和水解性质的定量
    • US20090068768A1
    • 2009-03-12
    • US12204165
    • 2008-09-04
    • Adam Michal UrbanowiczMikhail Baklanov
    • Adam Michal UrbanowiczMikhail Baklanov
    • G01J3/30H01L21/66
    • G01N21/631G01N21/71
    • A non-destructive and simple analytical method is provided which allows in situ monitoring of plasma damage during the plasma processing such as resist stripping. If a low-k film is damaged during plasma processing, one of the reaction products is water, which is remained adsorbed onto the low-k film (into pores), if the temperature is lower than 100-150 C. A plasma (e.g. He) that emits high energy EUV photons (E>20 eV) which is able to destruct water molecules forming electronically excited oxygen atoms is used to detect the adsorbed water. The excited oxygen is detected from optical emission at 777 nm. Therefore, the higher the adsorbed water concentration (higher damage), a more intensive (oxygen) signal is detected. Therefore, intensity of oxygen signal is a measure of plasma damage in the previous strip step. The proposed analytical method can be performed in-situ immediately after plasma processing and most preferred the optical emission of oxygen radicals is monitored during the de-chucking step in the plasma chamber.
    • 提供了非破坏性和简单的分析方法,其允许在诸如抗蚀剂剥离的等离子体处理期间原位监测等离子体损伤。 如果在等离子体处理期间低k膜被损坏,则其中一个反应产物是水,如果温度低于100-150℃,其仍然被吸附到低k膜(到孔中)。等离子体(例如 He)发射能够破坏形成电子激发的氧原子的水分子的高能量EUV光子(E> 20eV)用于检测吸附的水。 从777nm的光发射检测到激发的氧。 因此,吸附水浓度越高(损伤越高),检测到更加密集(氧)信号。 因此,氧信号的强度是前一条带步骤中等离子体损伤的量度。 所提出的分析方法可以在等离子体处理之后立即进行,最优选的是在等离子体室中脱卡步骤期间监测氧自由基的光发射。
    • 4. 发明授权
    • Quantification of hydrophobic and hydrophilic properties of materials
    • 材料的疏水性和亲水性的定量
    • US08158523B2
    • 2012-04-17
    • US12204165
    • 2008-09-04
    • Adam Michal UrbanowiczMikhaïl Baklanov
    • Adam Michal UrbanowiczMikhaïl Baklanov
    • H01L21/302
    • G01N21/631G01N21/71
    • A non-destructive and simple analytical method is provided which allows in situ monitoring of plasma damage during the plasma processing such as resist stripping. If a low-k film is damaged during plasma processing, one of the reaction products is water, which is remained adsorbed onto the low-k film (into pores), if the temperature is lower than 100-150 C. A plasma (e.g. He) that emits high energy EUV photons (E>20 eV) which is able to destruct water molecules forming electronically excited oxygen atoms is used to detect the adsorbed water. The excited oxygen is detected from optical emission at 777 nm. Therefore, the higher the adsorbed water concentration (higher damage), a more intensive (oxygen) signal is detected. Therefore, intensity of oxygen signal is a measure of plasma damage in the previous strip step. The proposed analytical method can be performed in-situ immediately after plasma processing and most preferred the optical emission of oxygen radicals is monitored during the de-chucking step in the plasma chamber.
    • 提供了非破坏性和简单的分析方法,其允许在诸如抗蚀剂剥离的等离子体处理期间原位监测等离子体损伤。 如果在等离子体处理期间低k膜被损坏,则其中一个反应产物是水,如果温度低于100-150℃,其仍然被吸附到低k膜(到孔中)。等离子体(例如 He)发射能够破坏形成电子激发的氧原子的水分子的高能量EUV光子(E> 20eV)用于检测吸附的水。 从777nm的光发射检测到激发的氧。 因此,吸附水浓度越高(损伤越高),检测到更加密集(氧)信号。 因此,氧信号的强度是前一条带步骤中等离子体损伤的量度。 所提出的分析方法可以在等离子体处理之后立即进行,最优选的是在等离子体室中脱卡步骤期间监测氧自由基的光发射。