发明授权
US07764109B2 Semiconductor device and voltage divider circuit 有权
半导体器件和分压器电路

  • 专利标题: Semiconductor device and voltage divider circuit
  • 专利标题(中): 半导体器件和分压器电路
  • 申请号: US12364744
    申请日: 2009-02-03
  • 公开(公告)号: US07764109B2
    公开(公告)日: 2010-07-27
  • 发明人: Tomoyuki Goto
  • 申请人: Tomoyuki Goto
  • 申请人地址: JP Tokyo
  • 专利权人: Ricoh Company, Ltd.
  • 当前专利权人: Ricoh Company, Ltd.
  • 当前专利权人地址: JP Tokyo
  • 代理机构: Cooper & Dunham LLP
  • 优先权: JP2008-043966 20080226
  • 主分类号: G05F1/10
  • IPC分类号: G05F1/10
Semiconductor device and voltage divider circuit
摘要:
A semiconductor device includes a resistance layout area that disposes multiple unit resistors, and a voltage divider circuit that divides a voltage applied to a series circuit and has the series circuit including a first resistance element, a second resistance element, some trimming resistance element connected in series, and some trimming fuse respectively connected in parallel with the trimming resistance element, in the circuit, the unit resistors belonging to each of three main resistance elements formed by the first resistance element, the second resistance element, and a highest trimming resistance element whose resistance value is highest among the trimming resistance elements are divided into multiple blocks each including a predetermined number of the unit resistors, and the multiple groups each including one block of each of the three main resistance elements adjacently arranged are formed, and the groups arranged close to a center portion of the resistance layout area.
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