发明授权
US07399704B2 Fabrication method of a semiconductor device using liquid repellent film 有权
使用防液膜的半导体器件的制造方法

Fabrication method of a semiconductor device using liquid repellent film
摘要:
In the case where a contact hole is formed by a conventional process of the semiconductor device fabrication, a resist is required to be formed almost entirely over a substrate in order to form the resist over the film where the contact hole is not formed. Accordingly, the throughput is considerably low. Further, when the resist spreads to the area of the contact hole when the amount of the resist to be applied and the surface state of the base are not fully controlled, contact defect would occur. Thus, improvements are required. According to the invention, in forming a semiconductor device, a part to be a contact hole of the semiconductor device may be covered with a first organic film that is liquid repellent. Subsequently, a second organic film serving as an insulating film is formed on the area where the first organic film is not formed, and the first organic film is removed thereafter to form a contact hole.
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