Method of manufacturing printed wiring board
A technology for printed circuit boards and manufacturing methods, applied in the directions of printed circuit manufacturing, printed circuits, printed circuits, etc., can solve the problems of different solder bump volumes and uneven heights of solder bumps, and achieve the effect of ensuring connection.
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[0036] first embodiment
[0037] Solder Ball Mounting Device
[0038] refer to Figure 12 A solder ball mounting apparatus for mounting tiny (less than 200 μm in diameter) solder balls 77 on connection pads of a multilayer printed wiring board will be described.
[0039] Figure 12 (A) is a block diagram showing the structure of a solder ball mounting apparatus according to an embodiment of the present invention, Figure 12 (B) is the view from the arrow B side Figure 12 (A) A side view of the solder ball mounting device.
[0040] The solder ball loading apparatus 100 includes an XYθ suction stage 114, a vertical movement axis 112, a ball alignment mask 16, a mounting cylinder (cylinder member) 124, a suction box 126, a ball removal cylinder 161, an absorption box 166, a ball removal suction device 168, Mask jig 144, moving shaft 140, moving shaft supporting guide rail 142, calibration camera 146, margin detection sensor 118, solder ball supply device 122; the XYθ su...
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