Molybdenum powder is used in circuit board inks. This is the only Gravis soundcard with a green circuit board. COMs are complete embedded computers built on a single circuit board. It might be one of many components on a circuit board within a product. It also benefited from the conformal coating of the internal circuit board. This process emerged in the 1960s as an offshoot of the printed circuit board industry. It is used to connect traces on a printed circuit board. The method eliminates the design and fabrication of a printed circuit board. Electronic design automation software programs include schematic capture programs and printed circuit board design programs. It is the de facto standard format used by printed circuit board or PCB software. Fuses designed for soldering to a printed circuit board have radial or axial wire leads. Later, Valid expanded into IC design tools and into printed circuit board layout. The distinction between a large MCM and a small printed circuit board is sometimes fuzzy. The boundary between a big MCM and a small printed circuit board is sometimes blurry. The main component on this circuit board is a microcontroller chip (MCU).