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    • 67. 发明授权
    • Method of multi-stage substrate etching and terahertz oscillator manufactured using the same method
    • 使用相同方法制造的多级衬底蚀刻方法和太赫兹振荡器
    • US08293124B2
    • 2012-10-23
    • US12073311
    • 2008-03-04
    • Chan Wook BaikSeog Woo HongJong Seok KimSeong Chan JunSun Il Kim
    • Chan Wook BaikSeog Woo HongJong Seok KimSeong Chan JunSun Il Kim
    • G03F7/20B44C1/22
    • H03B28/00B44C1/227H01L23/66H01L2223/6627H01L2924/0002H01L2924/1903H01L2924/00
    • A method of multi-stage substrate etching is provided. The method comprises the steps of: forming a first mask pattern on one surface of a first substrate; forming a hole by etching the first substrate using the first mask pattern as an etching mask; forming a second mask pattern on one surface of a second substrate; forming a hole by etching the second substrate to a predetermined depth using the second mask pattern as an etching mask; bonding the first and second substrates together such that an etched surface of the first substrate faces an etched surface of the second substrate; forming a third mask pattern on the second substrate; and forming a hole passing through the second substrate by etching the second substrate using the third mask pattern as an etching mask, whereby it is prevented the occurrence of a radius of curvature in the bottom surface and the overhang structure occurring on a step surface, so that etching quality is improved, a precise bonding between the substrates is obtained using the alignment key positioned on each substrate, and a multi-layer process is carried out.
    • 提供了一种多级衬底蚀刻的方法。 该方法包括以下步骤:在第一衬底的一个表面上形成第一掩模图案; 通过使用第一掩模图案蚀刻第一衬底作为蚀刻掩模来形成孔; 在第二基板的一个表面上形成第二掩模图案; 通过使用第二掩模图案作为蚀刻掩模将第二基板蚀刻到预定深度来形成孔; 将第一和第二基板接合在一起,使得第一基板的蚀刻表面面对第二基板的蚀刻表面; 在所述第二基板上形成第三掩模图案; 并且通过使用第三掩模图案作为蚀刻掩模蚀刻第二基板来形成通过第二基板的孔,从而防止在台面上出现底面和突出结构中的曲率半径的出现,因此 改善了蚀刻质量,使用位于每个衬底上的对准键来获得衬底之间的精确结合,并且进行多层工艺。
    • 68. 发明授权
    • Method of multi-stage substrate etching and terahertz oscillator manufactured using the same method
    • 使用相同方法制造的多级衬底蚀刻方法和太赫兹振荡器
    • US08092702B2
    • 2012-01-10
    • US12025186
    • 2008-02-04
    • Chan Wook BaikJong Seok KimSeong Chan JunSun Il KimJong Min KimChan Bong JunSang Hun Lee
    • Chan Wook BaikJong Seok KimSeong Chan JunSun Il KimJong Min KimChan Bong JunSang Hun Lee
    • B44C1/22
    • H01P11/003Y10T428/24802
    • A method of multi-stage substrate etching and a terahertz oscillator manufactured by using the method are provided. The method comprises the steps of forming a first mask pattern on any one surface of a first substrate, forming a hole by etching the first substrate using the first mask pattern as an etching mask, bonding, to the first substrate, a second substrate having the same thickness as a depth to be etched, forming a second mask pattern on the second substrate bonded, forming a hole by etching the second substrate using the second mask pattern as an etching mask, and removing an oxide layer having the etching selectivity between the first substrate and the second substrate, whereby the etched bottom is made uniformly even in a deep step, the edge curvature is minimized, and a T-shape is prevented from being formed on the etched wall face to thereby improve the etching quality. Further, the etching depth is previously controlled by lapping or polishing, the upper and lower substrates are precisely boned to each other using the alignment key, and a multi-layer processing is possibly performed thereto, so that the precision and the uniformity in structure of the oscillator or amplifier is obtained.
    • 提供了一种多级衬底蚀刻的方法和使用该方法制造的太赫兹振荡器。 该方法包括以下步骤:在第一衬底的任何一个表面上形成第一掩模图案,通过使用第一掩模图案作为蚀刻掩模将第一衬底蚀刻形成孔,将第一衬底粘合到第一衬底上, 与要蚀刻的深度相同的厚度,在第二衬底上形成第二掩模图案,通过使用第二掩模图案作为蚀刻掩模蚀刻第二衬底形成孔,并且去除在第一衬底之间具有蚀刻选择性的氧化物层 衬底和第二衬底,由此蚀刻的底部均匀地均匀地制成,即使在深度阶段,边缘曲率最小化,并且防止在蚀刻的壁面上形成T形,从而提高蚀刻质量。 此外,通过研磨或研磨预先控制蚀刻深度,使用对准键将上下基板彼此精确地相互结合,并且可以对其进行多层处理,使得精度和结构的均匀性 获得振荡器或放大器。