Multitest’s MEMS and Sensor Test and Calibration Portfolio Supports the Increasing Functionalities of Mobile Phones

Multitest meets performance and cost requirements of today‘s mobile applications

The Multitest has been providing MEMS and sensor test and calibration equipment for more than ten years. Originally driven by the automotive market Multitest continuously expanded the product offering to meet the needs of consumer and mobility applications. Today Multitest provides solutions for accelerometers, gyroscopes, pressure and gas sensors, humidity sensors, magnetometers, microphones, optical sensors and oscillators. The set-ups cover test of singulated packages, high-parallel testing up to multi-DOF test.

The features and functionalities of smartphones significantly grew. Portrait/landscape switching, pedometers, gaming, navigation have been complemented by location-based services, 3D gaming, advanced user interfaces, high-resolutions camera stabilization, and authentication. Barometric features, indoor navigation and activity monitoring have been the latest enhancements. Analyzing the bill of materials of the recently launched smartphones gives some insight, which types of sensors are deployed to enable this: accelerometers, gyroscopes, proximity, compass and barometers. In the more advanced phones gesture and heart rate sensors are integrated.

Andreas Nagy, Senior Director Marketing Handler & TCI comments: “Based on our experience and the comprehensive portfolio we are able to fully cover the technical requirements. Moreover, our equipment concept addresses the also business challenges in this fast moving and volatile market: high volumes, fast ramping, and substantial cost pressure. Our solutions are modular, flexible and re-configurable and support high parallel test of both – strips and singulated packages. For combo sensors multi-stimuli solutions up to 9 DOF are available. Within the Xcerra group we are able to deliver a turnkey MEMS/sensor test call including testing (ATE), MEMS/sensor actuation and package handling. This way our customers are able to combine the advantages of a complete solutions with the substantial benefits from a modular concept.”

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MT2168: Package Characterization at Cold Conditions

Leveraging the benchmark for ambient/hot test for tri-temp qualification

The Multitest MT2168 pick and place handler now offers the ability to characterize devices at cold conditions. This addresses the evolving requirements for temperature performance driven by applications in the end markets. Whereas final test of the respective devices in high volume production will only be done at ambient/hot, they need to get qualified for cold conditions before they ramp. The “Cold for Characterization” option of the MT2168 allows for using the one platform for qualification and final test without the need to invest in more complex and more expensive tri-temp test equipment.

The “Cold for Characterization” set-up of the MT2168 is an add-on to the standard base unit, which does not require changes in the handler itself. All required features are part of the conversion kit set. The customer can decide, whether he wants to use existing external chillers or if he prefers to have a LN2-based heat exchanger integrated. The “Cold for Characterization” option provides temperature conditioning directly at the contact site and sticks to the chamberless concept of the MT2168. This way no icing issues or defrost needs occur.

Günther Jeserer, Vice President for Gravity and Pick & Place Handling explains: “The MT2168 ‘Cold for Characterization’ meets the needs of the qualification teams at our customers: They can rely on the ease-of-operation of ambient/hot system but can do their full temperature characterization. With changing temperature performance requirements in the consumer markets and new car convenience and car entertainment applications in the automotive market, we anticipate a shift from strict tri-temp test in volume production to cold qualification before ramping. The MT2168 is the only handler with this ability, which is well received by our customers.”

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