extra large scale integration (IC) (ELSI)
ELSI (Extra Large Scale Integration) technology characterizes integration density on chip.
ELSI refers to integrated circuits( IC) that have between ten million (`10^7`) and one hundred million (`10^8`) transistors per chip. This technology has been controllable since the late 1990s; it is used, for example, in the Pentium and operates with a structure width of only 0.18 µm.
The successor technology to Extra Large Scale Integration is Giga Scale Integration( GSI) or Giant Large Scale Integration( GLSI).