发明授权
- 专利标题: Damped cradle for saw device
- 专利标题(中): 用于SAW器件的阻尼器
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申请号: US442277申请日: 1989-11-28
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公开(公告)号: US5109177A公开(公告)日: 1992-04-28
- 发明人: H. Erwin Grellmann , Emmanuel Sang
- 申请人: H. Erwin Grellmann , Emmanuel Sang
- 申请人地址: OR Beaverton
- 专利权人: Tektronix, Inc.
- 当前专利权人: Tektronix, Inc.
- 当前专利权人地址: OR Beaverton
- 主分类号: H03H9/25
- IPC分类号: H03H9/25 ; G01L1/00 ; G01L1/26 ; H03H9/05 ; H03H9/09
摘要:
A damped cradle for a pressure sensitive device is constructed in a unitary form. The cradle has a base that is attached to a substrate. Extending upward from the base are side arms with pairs of spring, or compliant, tips that contact the sides of the pressure sensitive device. Also extending upward from the base over the top of the pressure sensitive device are spring arms with compliant tips that contact the top surface of the pressure sensitive device in non-active areas. Vibrational forces in lateral (X-Y plane) directions are damped by friction between the bottom of the pressure sensitive device and the surface of the substrate, and vibration motion in the vertical, or Z, direction is stopped by enough spring force to overcome the maximum acceleration force the crystal mass encompasses for a given application. The spring forces of the spring tips and spring arms are balanced to produce a near zero pressure on the pressure sensitive device in both static and dynamic modes.
公开/授权文献
- US4455350A Conductive laminate sheet material and method of preparation 公开/授权日:1984-06-19
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