Sub-nanometer Stable Precision Mems Clamping Mechanism Maintaining Clamp Force Un-powered for Tem Application

نویسندگان

  • D. M. Brouwer
  • B. R. de Jong
  • J. Van Dijk
چکیده

⎯ A design is presented for a large force (0.5 mN) high precision MEMS clamping mechanism. The clamp is part of a MEMS TEM sample manipulator, which needs to be fixed un-powered once positioned. The elastic deformation of the clamp suspension has been optimized to not influence the TEM sample manipulator position during clamping. The dimensions of the elastic elements have been further optimized for minimal elastic energy storage, minimizing force for deformation and thus the device area. Fabrication involves a back-etch release process, offering great design freedom, resulting in a compact and optimal design.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Rotational Precision Mems-based Clamping Mechanism for Stable Fixation of Elastic Mechanisms

A mechanical clamp is presented which clamps one of the actuators of the MEMS-based TEM sample manipulator. The clamp incorporates a relatively large clamp force of 0.5 mN and is able to maintain the clamp force without external power. Although compliant mechanism design in MEMS design requires extra attention because of the relatively large deflections, small actuations forces and relatively l...

متن کامل

Effective of Main Bearing Bolt Manufacturing Parameters on Functional Performance in High Speed Diesel Engine using Torque-Angle Method

In marine diesel engine, main bearing bolts (M18×1.5) withstand large tensile and cyclic loads to keep the crank shaft, bearing whit acceptable clearance and precision clamping force at high crank speed like 3100 rpm. In this research, the relationship between torque and clamp force, the friction coefficient, the effect of number of tightening and bearing conditions on the new manufactured bolt...

متن کامل

Improved single molecule force spectroscopy using micromachined cantilevers.

Enhancing the short-term force precision of atomic force microscopy (AFM) while maintaining excellent long-term force stability would result in improved performance across multiple AFM modalities, including single molecule force spectroscopy (SMFS). SMFS is a powerful method to probe the nanometer-scale dynamics and energetics of biomolecules (DNA, RNA, and proteins). The folding and unfolding ...

متن کامل

Ergonomic redesign and evaluation of a clamping tool handle.

The handle of a commercial bar clamp was redesigned using ergonomic principles and then compared with an original clamp. Ten male and ten female students participated in simulated clamping tasks under various conditions, including different clamping heights, clamping methods, and handle-gripping methods, with respect to the dependent variables of clamping and handle-squeezing forces. The result...

متن کامل

A Self Servo Writing Scheme for a MEMS Storage Device with Sub-Nanometer Precision

In the probe-based storage concept being pursued by IBM, a MEMS based micro-scanner is used to position the storage medium relative to the read/write probes. To achieve repeatable positioning over a large storage area, it is necessary to have medium-derived position information. Dedicated servo-fields are typically employed to obtain medium-derived position information. Sub-nanometer positionin...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005