Category: Multi-Axis Motion

Fast Optical Alignment for SiP Production

Industry-leading speed and capability is an enabler for “photonomics” from wafer to packaged device;  2016 R&D 100 award winner! Problem The convergence of photonics and semiconductors promises a leap in data throughput, parallelism and energy efficiency. Design and materials challenges have by now been addressed. Practicalities of testing and packaging have not. Test and packaging […]

Image Stabilization and Multi-Axis Patterned Motion Simulation

Motion simulation is crucial in the evaluation of many devices, including vibrating testing of vehicles or airplanes, response testing of accelerometers or gyroscopes and image sensors such as those used in high end cameras and smartphones. Repeatable multi-axis motion simulation can help tweak advanced algorithms in image stabilization systems and verify the performance of opto-mechanical […]

Fast Piezo Scanning Stages for Pixel Sub-Stepping, Image Resolution Enhancement, Super-Resolution Imaging and Vibration and Shake Suppression

Increasing the Resolution of Optical Sensor Chips: Applications of Pixel Sub-Stepping Optical Resolution in Imaging Low light conditions create difficult conditions for imaging applications from astronomy to microscopy. Low light intensity means neither the resolution of the chip nor the exposure time for changing or moving objects can be freely chosen. Typical applications are fluorescence […]

Performance and Applications of Inertia Based Positioning Drives: Q-Motion

Size matters in miniaturization and automation – smaller is usually better. Traditional electromagnetic motors have limitations when it comes to shrinking dimensions while maintaining high efficiency and accuracy of motion with minimized energy consumption. Piezo ceramic inertia motors can fill this gap. The Q-Motion dubbed miniature direct drives can be employed in linear positioners, rotary […]

Ultra-High Precision AFM with 6-Axis Laser and Piezo Scanner for Traceable Measurements on Semiconductors and Step Standards

Atomic force microscopy (AFM) is used for surface measurements with resolution down to atomic levels – dimensions that are far beyond even the highest resolution optical microscopes. AFM is a noncontact procedure, with forces between a very fine measuring tip and the object surface revealing information about the topography, chemical surface condition, defects, etc. Atomic […]

Why To Use Air Bearing Stages Over Mechanical Bearings

Most motion applications are perfectly well-served by mechanical bearing guidance; but there are many cases where precision, angular repeatability, and geometric performance must be optimal or where vibration and sub-micron bearing rumble is problematic. An air-bearing stage can help in these situations. An air-bearing stage is a rotary or linear positioner that floats on a […]

Stacks of Single Axis Stages vs. Hexapods

When faced with a multi-axis motion application, many users stack motion stages, and in fact that is a fine approach for assemblies of just a few axes. But as applications become more complex, so do the equivalent stacks-of-stages, and very real and practical considerations begin to come into play. Stiffness.  Some stage manufacturers publish stiffness […]

Silicon Photonics Test and Alignment

The need for higher performance computing and data-communication speed has led to the advent of silicon photonics. In addition, to higher performance, silicon photonics can also reduce the power requirements of next generation server farms significantly. Challenges With the advantages, this new technology also brings about several production challenges, including the need for test platforms […]

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About PI

PI (Physik Instrumente) is a leading manufacturer of precision motion control equipment, piezo motors, air bearing stages and hexapod parallel-kinematics for semiconductor applications, photonics, bio-nano-technology and medical engineering. PI has been developing and manufacturing standard & custom precision products with piezoceramic and electromagnetic drives for 4 decades. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. PI is present worldwide with fifteen subsidiaries, R&D / engineering on 3 continents and total staff of more than 1,000.

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