Appeal No. 2000-0302
Application No. 08/796,363
1.142(b) as being directed to nonelected inventions.
Claim 5 reads:
A bump forming method comprising the steps of:
forming a ball at a bottom end of a wire inserted into a
central hole of a capillary tool and extended downward by
making a torch approach the bottom end of the wire and
generating sparks between the bottom end of said wire and said
torch;
separating said ball from said wire by lowering said
capillary tool relative to said wire; and
further lowering said capillary tool and pressing said
ball against an electrode of a workpiece to bond the ball to
the electrode.
The reference applied in the final rejection is:
Tiffany 3,357,090 Dec. 12,
1967
Claim 5 stands finally rejected under 35 U.S.C. § 102(b)
as anticipated by Tiffany.
Tiffany discloses a bump (ball) forming method in which
wire 58 passing through a capillary tool (quill) 24 is severed
by a burner 60 from a lower portion of the wire having a
previously-formed ball 50. The burner simultaneously forms a
new ball 50 on the lower end of the upper portion of the wire
(col. 2, lines 65 to 70). The tool 24 is then lowered
2
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