Abstract: Method and apparatus for cleaning semiconductor devices and other workpieces using an aqueous rinse solution which is de-oxygenated by passing the aqueous rinse solution and a carrier gas through an osmotic membrane degasifier. A cleaning chamber is also disclosed for carrying out the cleaning method.
Type:
Grant
Filed:
May 25, 2001
Date of Patent:
November 4, 2003
Assignee:
Z Cap, L.L.C.
Inventors:
Paul William Dryer, Richard Scott Tirendi, James Bradley Sundin
Abstract: An apparatus and method for cleaning and rinsing of disk-shaped objects, such as silicon wafers, high precision lenses and the like. The cleaning and rinsing may take place in a single chamber, that is sequentially filled with cleaning solution, rinsing solution, and the like. In an important aspect of the invention, chemical cleaning solutions are dumped to containers and recycled for the use. Moreover, a cleaning solution composition may be monitored, and the concentration of solution can be adjusted automatically, or make-up chemicals may be added, as necessary. The apparatus has a relatively small footprint and maybe surrounded with an enclosure that may be kept at lower than atmosphere pressure to prevent escape of potentially hazardous contaminants into the environment. In preferred embodiments of the invention, the handling of wafers to be cleaned is carried out robotically, most preferably using a robot with at least two end-effectors, each adapted for a specific function.
Type:
Grant
Filed:
November 5, 1999
Date of Patent:
July 9, 2002
Assignee:
Z Cap, L.L.C.
Inventors:
James B. Sundin, Richard S. Tirendi, Paul W. Dryer
Abstract: Method and apparatus for cleaning semiconductor devices and other workpieces using an aqueous rinse solution which is de-oxygenated by passing the aqueous rinse solution and a carrier gas through an osmotic membrane degasifier. A cleaning chamber is also disclosed for carrying out the cleaning method.
Type:
Grant
Filed:
July 11, 2000
Date of Patent:
September 4, 2001
Assignee:
Z Cap L.L.C.
Inventors:
Paul William Dryer, Richard Scott Tirendi, James Bradley Sundin