This miniature rendition of a bulldozer appears on a NMOS digital chip designed in 1980 for Caterpillar by Synertek for use in their heavy equipment Electronic Monitoring Systems. The integrated circuit is still used in many models of Caterpillar construction equipment, including bulldozers. We suspect that the bulldozer is busy clearing space on the chip for additional transistors. The chip was loaned to us by Chuck A. Morrill, a Semiconductor Component Engineer who conducts failure analysis testing and sourcing of chips for electronic controls at Caterpillar. Now, ain't this slick?