Method of cleaning silicon material with a sponge

Details Method of cleaning silicon material with a sponge Method of cleaning silicon material with a sponge

1999-03-09

1999-12-21

Warden, Jill

Cleaning and liquid contact with solids

Processes

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

134 28, 134 6, 134 9, 134 26, 134 27, B08B 9087

Patent

active

060044020

ABSTRACT:
A method of cleaning a silicon material using a polyvinyl acetal sponge material. The sponge material is purified by an extracting process which includes alternating exposure of the sponge material to acid and oxidizing solutions. The extracting process permits residual amounts of calcium, zinc, sulfate, arsenic, barium, cadmium, chloride, chromium, copper, iron, lead, manganese, magnesium, mercury, nitrate, potassium, selenium, silica, silver and sodium to be 2 ppm or less. Following the extracting process, the silicon material is contacted with the sponge material to thereby clean the silicon material.

REFERENCES:
patent: 1002842 (1911-09-01), Harriss
patent: 1002913 (1911-09-01), Harriss
patent: 1094361 (1914-04-01), Blevney
patent: 1775186 (1930-09-01), Bartling
patent: 2053604 (1936-09-01), Dullinger
patent: 2485428 (1949-10-01), Bleier et al.
patent: 2525965 (1950-10-01), Smith
patent: 2609347 (1952-09-01), Wilson
patent: 2932859 (1960-04-01), Rockoff
patent: 3190843 (1965-06-01), Hofelmann et al.
patent: 3318856 (1967-05-01), Deyrup
patent: 3481888 (1969-12-01), Sinclair
patent: 3591543 (1971-07-01), Stafford
patent: 3663470 (1972-05-01), Nishimura et al.
patent: 3673125 (1972-06-01), Takahashi et al.
patent: 3737398 (1973-06-01), Yamaguchi
patent: 3858329 (1975-01-01), Koide et al.
patent: 3915671 (1975-10-01), Kaqawa
patent: 3988245 (1976-10-01), Wang
patent: 4083906 (1978-04-01), Schindler et al.
patent: 4098728 (1978-07-01), Rosenblatt
patent: 4111666 (1978-09-01), Kalbow
patent: 4197371 (1980-04-01), Holst et al.
patent: 4279752 (1981-07-01), Sueoka et al.
patent: 4430447 (1984-02-01), Pospich et al.
patent: 4552138 (1985-11-01), Hofeditz et al.
patent: 4566911 (1986-01-01), Tomita et al.
patent: 4692473 (1987-09-01), Wright et al.
patent: 4750915 (1988-06-01), Tomita et al.
patent: 4767793 (1988-08-01), Schisler et al.
patent: 4807339 (1989-02-01), Hayashi
patent: 4841680 (1989-06-01), Hoffstein et al.
patent: 4902511 (1990-02-01), Kronman
patent: 4925453 (1990-05-01), Kannankeril
patent: 4969226 (1990-11-01), Seville
patent: 5009652 (1991-04-01), Morgan et al.
patent: 5059659 (1991-10-01), Gregor et al.
patent: 5071648 (1991-12-01), Rosenblatt
patent: 5144711 (1992-09-01), Gill, Jr.
patent: 5155138 (1992-10-01), Lundqvist
patent: 5164088 (1992-11-01), Hanel et al.
patent: 5169904 (1992-12-01), Ziemelis et al.
patent: 5217663 (1993-06-01), Seville
patent: 5284468 (1994-02-01), Nelson
patent: 5288763 (1994-02-01), Li et al.
patent: 5311634 (1994-05-01), Andros
patent: 5326629 (1994-07-01), Vaughn et al.
patent: 5370656 (1994-12-01), Shevel
patent: 5387206 (1995-02-01), Valentine et al.
patent: 5414914 (1995-05-01), Suzuki et al.
patent: 5447505 (1995-09-01), Valentine et al.
patent: 5453078 (1995-09-01), Valentine et al.
patent: 5460655 (1995-10-01), Pisacane et al.
patent: 5466231 (1995-11-01), Cercone et al.
patent: 5469864 (1995-11-01), Rosenblatt
patent: 5502082 (1996-03-01), Unger et al.
patent: 5504124 (1996-04-01), Cassidy et al.
patent: 5524642 (1996-06-01), Rosenblatt
patent: 5526546 (1996-06-01), Kamen
patent: 5554658 (1996-09-01), Rosenblatt
patent: 5554659 (1996-09-01), Rosenblatt
patent: 5556391 (1996-09-01), Cercone et al.
patent: 5597850 (1997-01-01), Rainer
patent: 5611943 (1997-03-01), Cadien et al.
patent: 5639311 (1997-06-01), Holley et al.
patent: 5744150 (1998-04-01), Cercone
patent: 5745945 (1998-05-01), Manfredi et al.
patent: 5776225 (1998-07-01), Megy
patent: 5846335 (1998-12-01), Maekawa et al.

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