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    • 2. 发明申请
    • Apparatus and method of etching a semiconductor substrate
    • 蚀刻半导体衬底的设备和方法
    • US20080096393A1
    • 2008-04-24
    • US11907081
    • 2007-10-09
    • In-Gi KimDae-Hyuk ChungDae-Hyuk Kang
    • In-Gi KimDae-Hyuk ChungDae-Hyuk Kang
    • H01L21/461
    • H01L21/31111H01L21/67086H01L21/76224
    • An apparatus for etching a semiconductor substrate may include a bath, a reaction preventing layer, and a nozzle. The bath may receive a chemical solution. Grooves may be formed at the inner wall of the bath. The reaction preventing layer may be formed on the inner wall and in the grooves of the bath to reduce or prevent a chemical reaction between the chemical solution and the bath. The nozzle may supply the chemical solution to the bath. In a method of etching a semiconductor substrate, the semiconductor substrate having trench structures and an insulation layer pattern may be prepared. The semiconductor substrate may then be dipped into the bath having the reaction preventing layer in which the chemical solution is received. The semiconductor substrate may be reacted with the chemical solution by blocking the chemical reaction between the chemical solution and the bath to etch the insulation layer pattern and the trench structure at a uniform rate.
    • 用于蚀刻半导体衬底的设备可以包括浴,反应防止层和喷嘴。 浴可以接受化学溶液。 槽可以形成在浴的内壁。 反应防止层可以形成在浴的内壁和凹槽中,以减少或防止化学溶液和浴之间的化学反应。 喷嘴可以将化学溶液供应到浴中。 在蚀刻半导体衬底的方法中,可以制备具有沟槽结构和绝缘层图案的半导体衬底。 然后将半导体衬底浸入具有接收化学溶液的反应防止层的浴中。 半导体衬底可以通过阻止化学溶液和浴之间的化学反应与化学溶液反应,以均匀的速率蚀刻绝缘层图案和沟槽结构。