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Patent Searching and Data


Title:
MOLTEN METAL DISCHARGING DEVICE
Document Type and Number:
Japanese Patent JP2007160378
Kind Code:
A
Abstract:

To provide a molten metal discharging device capable of improving the arriving positional accuracy of droplets higher than before while preventing oxidation of solder droplets by feeding inert gas.

A nozzle plate 4 is provided with a planar plate part 42 and a projected part 41 projecting taperingly downward from the bottom center of the plate part 42. In the lower end of the projected part 41, a discharge port 5 is defined from which a solder droplet 8 is dripped. Nitrogen gas supplied from a feeding pipe 20 is received by the side of the projected part 41 and jetted, with the direction changed to the discharge direction (i.e., downward) of the solder droplet 8. In a thin plate part 3 functioning as a diaphragm, there is formed a projected part 10a projecting taperingly downward from its bottom center.


Inventors:
YOKOYAMA YOSHINORI
FUKUMOTO HIROSHI
TAKEDA MUNEHISA
Application Number:
JP2005362665A
Publication Date:
June 28, 2007
Filing Date:
December 16, 2005
Export Citation:
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Assignee:
RENESAS TECH CORP
International Classes:
B23K3/06; B23K31/02; H01L21/60; B23K101/42
Attorney, Agent or Firm:
Shigeaki Yoshida
Yoshitake Hidetoshi
Takahiro Arita