| US 7,524,698 B2 | ||
| Handling and positioning of metallic plated balls for socket application in ball grid array packages | ||
| Giorgio Viero, Stezzano (Italy); Stefano Sergio Oggioni, Milan (Italy); and Michele Castriotta, Manfredonia (Italy) | ||
| Assigned to International Business Machines Corporation, Armonk, N.Y. (US) | ||
| Filed on Dec. 02, 2005, as Appl. No. 11/164,711. | ||
| Claims priority of application No. 04106241 (EP), filed on Dec. 02, 2004. | ||
| Prior Publication US 2006/0255461 A1, Nov. 16, 2006 | ||
| Int. Cl. H01L 21/44 (2006.01); H01L 21/48 (2006.01) | ||
| U.S. Cl. 438—106 [438/109; 438/111; 438/112; 438/118; 438/119; 228/246; 228/254; 228/56.3] | 9 Claims |
| 1. A method for handling at least one oriented half plated ball embedded in a foil such that said at least one oriented half
plated ball protrudes on both faces of said foil, using a caved-cover clam comprising at least one cavity having the shape
and the size of approximately half of said half plated ball, said method comprising the steps of:
positioning said foil comprising said at least one oriented half plated ball on a clam receiving tool;
positioning the caved-cover clam so that said at least one cavity fits on said at least one oriented half plated ball wherein
said positioning operates to separate said foil from said at least one oriented half plated ball;
lifting the caved-cover clam entrapping said at least one oriented half plated ball in said at least one cavity;
positioning the caved-cover clam according to the target position of said at least one oriented half plated ball;
freeing said at least one oriented half plated ball; and,
lifting the caved-cover clam.
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