Adhesive bonding and miscellaneous chemical manufacture – Delaminating processes adapted for specified product – Delaminating in preparation for post processing recycling step
Patent
1993-04-28
1995-01-03
Dang, Thi
Adhesive bonding and miscellaneous chemical manufacture
Delaminating processes adapted for specified product
Delaminating in preparation for post processing recycling step
156640, 156642, 156345, 134 10, 134 15, 134 26, 134 64R, 134 953, 1341031, B08B 302
Patent
active
053783077
ABSTRACT:
A fluid treatment apparatus and method for applying first and second fluids (e.g., etchant and water) to an article (e.g., circuit board) passing through the apparatus at a predetermined rate. The first fluid is impinged on a surface of the article and thereafter collected within the apparatus' common housing. The second fluid is impinged onto the surface of the article and collected within the same housing but at a location separate from the collected first fluid so as to at least partially prevent mixing thereof. The preferred means for effecting fluid impingement comprises separate fluid injecters, each including at least two rows of fluid jet injectors therein. The collected fluids are each returned to the respective impingement means. Replenishment of the second fluid is accomplished using a pump which supplies the second fluid, while the apparatus also includes means (e.g., a drain) to effectively remove the second fluid at a rate similar to the supply rate for the second fluid. The first fluid is also maintained at an established level above the article's surface using suitable means (e.g., dual rollers) located relative (e.g., on opposite sides of) the first fluid impingement means. Similar level retention for the second fluid is also possible. Cascading of the collected second fluid is also defined, this occurring within the same housing chamber which serves to collect the first fluid.
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IBM Technical Disclosure Bulletin, vol. 18, No. 3, Aug. 1975, "Cascading Image Developer", by R. C. Ludden, pp. 690-691.
Bard Steven L.
Bendz Gerald A.
Canestaro Michael J.
Chapura John R.
Frankoski Edward J.
Dang Thi
Fraley Lawrence R.
International Business Machines - Corporation
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