发明授权
US4683442A Operational amplifier circuit utilizing resistors trimmed by metal
migration
失效
使用通过金属迁移修剪的电阻的运算放大器电路
- 专利标题： Operational amplifier circuit utilizing resistors trimmed by metal migration
- 专利标题（中）： 使用通过金属迁移修剪的电阻的运算放大器电路
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申请号： US856258申请日： 1986-04-28
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公开(公告)号： US4683442A公开(公告)日： 1987-07-28
- 发明人: Robert L. Vyne
- 申请人： Robert L. Vyne
- 申请人地址： IL Schaumburg
- 专利权人： Motorola, Inc.
- 当前专利权人： Motorola, Inc.
- 当前专利权人地址： IL Schaumburg
- 主分类号： H01C17/26
- IPC分类号： H01C17/26 ; H01L21/326 ; H01L29/8605 ; H03F3/45
摘要：
A method for trimming a diffused or implanted resistor located within an integrated circuit is disclosed. This technique for trimming a resistor requires the use of high current pulses and geometric shaped metal contacts. The current pulses react with the electropositive metal atoms in the thin film conductor and cause the metal atoms to migrate to another location, thus altering the value of the resistor by progressively decreasing the conductivity of the resistor. An operational amplifier circuit utilizing resistors trimmed by metal migration is also disclosed.
公开/授权文献
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