This paper presents a novel method for surface micro-machining of pin-jointed actuators using only two active polySi layers. An alternative sacrificial layer deposition and etching sequence is proposed in order to achieve the linkage construction. The implementation of a four-level profile in the first sacrificial layer is a key factor to significantly reduce topography issues when depositing subsequent layers. Adding to this are some design considerations to further smooth the surface topography irregularities so that a reasonable clearance between the first and second mechanically active layers is obtained. As a result, the need of a planarization process step is foreseen to be avoided. The main advantages of the proposed construction technology are process simplification and standardization conditions in key deposit steps.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.