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Patent Searching and Data


Title:
SOLDERING METHOD
Document Type and Number:
Japanese Patent JP2003324271
Kind Code:
A
Abstract:

To provide a soldering method which can control the volume of solder for each soldering point and can attain a desired soldering volume in order to prevent a variation in printing volume, failure in shape, generation of blur, and wear of squeeze.

Solder pellets 8 are mounted together with surface mounting components 7 on a cream-soldered layer 8 which has been formed by printing on a land of a printed circuit board 2 or the like, and these pellets 8 are fused for a soldering purpose. Moreover, the solder pellet is manufactured as a pellet having the same composition as the solder in the cream-solder in the volume which is equal to the difference between the volume of solder in the cream- solder and the volume of solder required for each soldering point.


Inventors:
SUGIHARA TAKESHI
Application Number:
JP2002129636A
Publication Date:
November 14, 2003
Filing Date:
May 01, 2002
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
B23K1/00; B23K3/06; H05K3/34; B23K101/42; (IPC1-7): H05K3/34; B23K1/00; B23K3/06
Attorney, Agent or Firm:
Keigo Murakami (3 outside)