发明名称 |
Resistance Element, Its Precursor, and Resistance Value Adjusting Method |
摘要 |
An object of the invention is to provide a resistor element that makes it possible to adjust the resistance value of a precursor easily in producing a resistance element having a target resistance value from the precursor, as well as to the precursor and a related resistance value adjusting method. A precursor 70 has a meandering resistance pattern formed on a front surface 11 of a substrate 10 as well as at least three trimming lines. The precursor 70 is configured so as to be defined by a geometric sequence that satisfies Inequality 0.5alpha<SUB>k</SUB><alpha<SUB>k+1</SUB><alpha<SUB>k</SUB>, where alpha<SUB>k </SUB>is the general term of the sequence that is obtained by arranging, in descending order, resistance value increases of the precursor at the time of cutting of the respective trimming lines and normalizing the thus-arranged resistance value increases by an initial resistance value of the precursor in a state that none of the trimming lines are cut.
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申请公布号 |
US2008048823(A1) |
申请公布日期 |
2008.02.28 |
申请号 |
US20060597048 |
申请日期 |
2006.12.11 |
申请人 |
NGK SPARK PLUG CO., LTD. |
发明人 |
UEKI MASATOSHI;YOKOI HITOSHI |
分类号 |
H01C10/00;H01C7/02;H01C17/23;H01C17/24;H01C17/242 |
主分类号 |
H01C10/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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