VEC Blog

Magnetic fields impacting electron microscope image performance

EMI Interference: Understanding and Mitigating AC and DC Magnetic Fields

October 17, 2019

DC and AC magnetic fields create electromagnetic interference (EMI) that can degrade the performance of electron microscopes and e-beam lithography tools.  Although AC and DC magnetic fields are related, each impacts equipment differently.  There are different strategies to mitigate both, but an AC+DC active magnetic field cancelation system is often the simplest and most cost-effective […]

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Construction vibration is a low-frequency vibration sources that can be challenging to mitigate

Understanding and Mitigating The Vibration In Your Facility

August 27, 2019

Low-frequency and high-frequency vibration both have a significant impact on electron microscopy laboratories and high-tech manufacturing facilities. These two types of vibration stem from different causes and the strategy for mitigating vibration for each is also different. Vibration Engineering Consultants (VEC) can help you quantify and identify the vibration in your facility and work with […]

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Why Use a Third-Party for Your Site Survey

July 16, 2019

A new microscope and semiconductor customers have a few options when it comes to deciding who should provide their site survey. The original equipment manufacturer (OEM) will often offer the survey; organizations sometimes attempt to conduct the surveys themselves in-house. In this post, we explain why a third-party site survey provides considerable benefits and is […]

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DC Field Disturbances on Electron Microscopes and E-Beam Lithography Tools

January 24, 2018

Overview: Changes in DC magnetic field levels near an electron microscope or e-beam lithography tool degrade image quality and inhibit production. A change in DC fields often results in image distortion, a blurred image, or image drift. Common sources of change in DC fields are variation in the Earth’s magnetic field and the movement of […]

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Why a Site Survey is Import

November 21, 2017

Let VEC help you make informed decisions and protect against unwanted surprises Overview: Site surveys are a critical requirement whenever purchasing new tools or moving into a new laboratory or clean room. Site surveys both help determine if your space meets manufacturer specifications and if additional preparatory work is required. This could be the replacement […]

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Reducing Vibration from Mechanical Equipment in an Electron Microscopy Lab

November 21, 2017

Discussion: Reducing Vibration from Mechanical Equipment in an Electron Microscopy Lab: Laboratories often have vibrating equipment that causes disturbances on electron microscope images.  These sources include chillers, vacuum pumps, transformers, etc..  At VEC, this is a problem that we commonly see in our clients’ laboratories.  Following some basic guidelines can help reduce the impact of […]

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vibration reduction for sensitive instruments