A Brief History of Magnetic Field Cancelling

Our founder, Denis Spicer, was sorting through some old files today and found some documents from the early days of Spicer Consulting. There is an application note , explaining how to improve SEM imaging performance using magnetic field cancelling - the fundamentals remain the same today, although the technology has moved on. There is also a product data sheet for one of the first generation magnetic field cancelling systems - the SC07LF. This was the version of the SC07 with an extended low frequency range that was needed before we introduced DC cancelling systems. Both these documents date back to 1991.