Method of forming film and film forming apparatus
    5.
    发明申请
    Method of forming film and film forming apparatus 审中-公开
    薄膜成膜装置的形成方法

    公开(公告)号:US20060216953A1

    公开(公告)日:2006-09-28

    申请号:US10552468

    申请日:2004-04-08

    IPC分类号: H01L21/31 H01L21/469

    摘要: The object of the present invention is to increase the crystallization temperature of a hafnium compound film which can be effectively used as a high dielectric constant film of a gate oxide film of a MOSFET, for example. A hafnium silicate film is deposited on a substrate by reacting a vapor of a hafnium organic compound with a monosilane gas or a disilane gas in a reaction vessel in a heated vacuum atmosphere. Due to the crystallization restraining effect of silicon, the thus obtained film has a higher crystallization temperature. In another embodiment of the present invention, an oxygen-containing hafnium compound film is annealed in a heated ammonia gas atmosphere. The annealing also increase the crystallization temperature of the oxygen-containing hafnium compound film.

    摘要翻译: 本发明的目的是提高可以有效地用作MOSFET的栅极氧化膜的高介电常数膜的铪化合物膜的结晶温度。 通过使铪有机化合物的蒸气与甲硅烷气体或乙硅烷气体在加热的真空气氛中在反应容器中反应,将硅酸铪膜沉积在基材上。 由于硅的结晶抑制效果,所得到的膜具有较高的结晶温度。 在本发明的另一个实施方案中,将含氧铪化合物膜在加热的氨气气氛中退火。 退火还增加含氧铪复合膜的结晶温度。