发明名称 |
Resistance temperature detector (RTD) formed with a surface-mount-device (SMD) structure |
摘要 |
The present invention discloses a method for manufacturing a surface mount resistance-temperature-detector (RTD) on a substrate. The manufacture method includes the steps of (a) depositing a resistive thin film on a top surface of the substrate having a substantially linear temperature resistance coefficient (TCR) over a predetermined temperature range for temperature measurement; (b) patterning the resistive film into a plurality of resistive strips and a plurality of top terminals near two opposite edges on the top surface of the substrate with each resistive strip connected between two top terminals; (c) forming a bottom electrode on a bottom surface of the substrate underneath each of the top terminals; (d) depositing two edge conductive plates on edge surfaces of the substrate for connecting one of the top terminals to a bottom terminal thereunder; and (e) forming two surface mount solder electrodes with a conductive layer overlying the top terminal, the edge conductive plate and the bottom terminal provided for performing a surface-mount soldering operation thereon.
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申请公布号 |
US6151771(A) |
申请公布日期 |
2000.11.28 |
申请号 |
US19990274736 |
申请日期 |
1999.03.23 |
申请人 |
CYNTEC COMPANY |
发明人 |
TZENG, JACKEL;HSIEH, ROGER;CHENG, DUEN-JEN |
分类号 |
G01K7/18;H01C7/10;H01C17/00;(IPC1-7):H01C17/00 |
主分类号 |
G01K7/18 |
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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