Our "Meant for MEMS" philosophy is to develop our handlers specifically suitable for MEMS testing. This concerns not only the required accuracy of the handler, but also the understanding of the behaviour of the sensor to be tested. This philosophy results certain principles we follow in every handler realization:
1. The testing conditions is the main issue. The MEMS stimulus module is the "heart" of the system, not an add-on. The piece handling is realized on the terms of testing, not vice versa.
2. Accuracy of the stimulus. Whether is the matter of pressure, acceleration or rate it must be well controlled and verifiable.
3. Smooth handle of DUTs. In our handlers we don't cause any mechanical shocks to the DUT either before or after the testing. We understand the sensitivity of the DUT.
4. Minimization of mechanical noise. We typically build our stimulus modules on sturdy frames mechanically separated from the piece handling. Thereby we can avoid transmittance of undesirable vibrations to the DUT.
5. Minimization of electrical noise. The choice of contacts and measuring cables is of course an important factor, but we have extended it to the operation of the stimulus module. Our normal procedure is to switch off all actuators of the stimulus module during testing. This has a high impact to the level of the electrical noise.