Cleaning solution of silicon germanium layer and cleaning...

Details Cleaning solution of silicon germanium layer and cleaning... Cleaning solution of silicon germanium layer and cleaning...

2005-04-13

2008-10-14

Carrillo, Sharidan (Department: 1792)

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

C134S001000, C134S022130, C134S022140, C134S022170, C134S022190, C134S025400, C134S029000, C134S034000, C134S036000, C134S042000, C134S902000, C510S175000, C510S401000, C510S421000, C510S435000, C510S506000

Reexamination Certificate

active

07435301

ABSTRACT:
Disclosed are a cleaning solution for preventing damage of a silicon germanium layer when cleaning a semiconductor device including the silicon germanium layer and a cleaning method using the same. The cleaning solution of a silicon germanium layer includes from about 0.01 to about 2.5 percent by weight of a non-ionic surfactant with respect to 100 percent by weight of the cleaning solution, about 0.05 to about 5.0 percent by weight of an alkaline compound with respect to the cleaning solution and a remaining amount of pure water. The damage to an exposed silicon germanium layer can be prevented when cleaning a silicon substrate having a silicon germanium layer. Impurities present on the surface portion of the silicon germanium layer can be effectively removed.

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