发明授权
- 专利标题: Apparatus for accurate and efficient quality and reliability evaluation of micro electromechanical systems
- 专利标题(中): 微机电系统的准确高效的质量和可靠性评估装置
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申请号: US11163485申请日: 2005-10-20
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公开(公告)号: US07602265B2公开(公告)日: 2009-10-13
- 发明人: Hariklia Deligianni , Robert D. Edwards , Thomas J. Fleischman , Robert A. Groves , Charles J. Montrose , Richard P. Volant , Ping-Chuan Wang
- 申请人: Hariklia Deligianni , Robert D. Edwards , Thomas J. Fleischman , Robert A. Groves , Charles J. Montrose , Richard P. Volant , Ping-Chuan Wang
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: DeLio & Peterson, LLC
- 代理商 Robert Curcio; Lisa U. Jacklitsch
- 主分类号: H01H51/22
- IPC分类号: H01H51/22
摘要:
The present invention provides multiple test structures for performing reliability and qualification tests on MEMS switch devices. A Test structure for contact and gap characteristic measurements is employed having a serpentine layout simulates rows of upper and lower actuation electrodes. A cascaded switch chain test is used to monitor process defects with large sample sizes. A ring oscillator is used to measure switch speed and switch lifetime. A resistor ladder test structure is configured having each resistor in series with a switch to be tested, and having each switch-resistor pair electrically connected in parallel. Serial/parallel test structures are proposed with MEMS switches working in tandem with switches of established technology. A shift register is used to monitor the open and close state of the MEMS switches. Pull-in voltage, drop-out voltage, activation leakage current, and switch lifetime measurements are performed using the shift register.
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