Specializing in Piezo Stages and Nanopositioning Solutions

LC.300 Series Nanopositioning Controller from nPoint

The LC.300 Series Piezo Controller is the latest addition to nPoint’s nanopositioning electronics. This new closed-loop controller is designed to address OEM applications that benefit from speed, precision, and flexibility but do not require the advanced feature set of the LC.400 Piezo Controller. LC.300 Digital Controllers are designed to operate closed-loop, flexure-guided nanopositioners, with smooth […]

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High Resolution Non-Contact Optical Profilometry using Advanced Piezo Stages from nPoint

California based Zeta Instruments Inc. manufactures non-contact optical profilometers for a variety of research and industrial applications.  The optical profilers are required to have a compact footprint while meeting stringent repeatability and accuracy requirements in a noisy semiconductor manufacturing fab or a busy academic lab.  Measurements such as contact bumps on silicon wafers require a […]

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Multiphoton Microscopy

Multiphoton microscopy provides optical sectioning capabilities to depths of greater than 1mm at diffraction limit resolution. Compared to confocal, multiphoton microscopy allows deeper imaging into tissue, making it the technique of choice for thicker tissue specimens, such as brain slices or tumor or lymph node explants, as well is intravital imaging in small animal models.  […]

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Components of a Nanopositioning System

Nanopositioning systems provide the opportunity to enable many advanced applications. Their use has spread from AFMs to optics and multiple new technologies. While selecting a system can be complex at times, there are three main components that work together to provide motion on the nanoscale. Each component will briefly be discussed and can be studied […]

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Tip Tilt Piezo Stage with Enhanced Precision

The RXY3-410 tip/tilt piezo stage is the latest addition to nPoint’s nanopositioning lineup.  This new stage is designed for advanced research and OEM markets where speed, precision, and flexibility are a priority. The RXY3-410 nanopositioner is a piezo driven, flexure guided stage designed for high speed and sub-microradian precision. Having a position noise of 0.2 […]

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Piezoelectric Actuators Used in Flexure Stages

nPoint uses piezoelectric stack actuators to provide motion to its flexure stages. These stacks are often referred to as “piezos” and this is what puts the “piezo” in “piezo stage.” Actuators are stacked with multiple piezo tiles to provide larger displacement and hence the term “piezo stack”.  The material used for the piezo tiles is […]

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Custom Programming for Nanopositioning Stages

nPoint uses digital control electronics in its nanopositioning systems. Electrical, mechanical, and software engineering are all done in-house. This flexibility allows for custom development to meet the requirements set forth by an external user. The following provides an example of custom software features programmed at nPoint directly for a customer application. Read: OEM and Custom […]

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OEM and Custom Piezo Stage Development

The goal at nPoint is to meet the specifications set forth by each customer. In many cases, this can be done with nanopositioning systems that have previously been designed and manufactured. There are however, many applications where a custom stage is necessary, such as a component of an OEM product. nPoint works with a variety […]

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Parallel vs Serial Kinematic Flexure Stage Design

When designing piezo flexure stages two examples that dominate mechanical design include parallel and serial kinematics. At nPoint we employ both strategies to meet customer requirements. Testing and calibration are always done with external interferometric sensors regardless of flexure design and feedback sensor choice. Specifications tested in this manner are actual, not theoretical sensor or […]

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