发明授权
US06452112B1 Electronic circuit unit useful for portable telephone, etc., and a method of manufacturing the same 失效
用于便携式电话等的电子电路单元及其制造方法

  • 专利标题: Electronic circuit unit useful for portable telephone, etc., and a method of manufacturing the same
  • 专利标题(中): 用于便携式电话等的电子电路单元及其制造方法
  • 申请号: US09420292
    申请日: 1999-10-18
  • 公开(公告)号: US06452112B1
    公开(公告)日: 2002-09-17
  • 发明人: Kiminori TerashimaHiroshi Harada
  • 申请人: Kiminori TerashimaHiroshi Harada
  • 优先权: JP10-296973 19981019
  • 主分类号: H05K116
  • IPC分类号: H05K116
Electronic circuit unit useful for portable telephone, etc., and a method of manufacturing the same
摘要:
The electronic circuit unit of the present invention is provided with the broad width lands and the thin width lands tied with the broad width lands, which are configured by a solder resist that is formed on the surface of the circuit board. Owing to this configuration, the solders placed on the thin width lands are drawn toward the broad width lands, which increases the quantity of the solder buildup on the broad width lands, and accompanied with this increase, swells the heights of the solder buildup on the broad width lands. Thus, the electronic circuit unit of the present invention ensures the soldering.
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