The Semiconductor Capital Equipment Industry manufactures and markets machines used in the production of electronic devices. Equipment is classified as either front-end or back-end. Front-end involves silicon wafer fabrication and other various functions, such as photolithography, deposition, etching, cleaning, ion implantation, and chemical & mechanical polishing. Back-end encompasses the assembly, packaging and testing of integrated circuits. The front-end segment accounts for roughly 70% of industry sales, with the back-end making up the balance. Volatile Semiconductor Capital Equipment stocks are well suited to aggressive investors looking to gain on industry upswings.