Timeline: From Dublin garage to a 360-acre campus
1989: Intel Ireland, which began in a garage in Dublin, sets up its Leixlip operation at a former stud farm with more than IR£87m in grants from the IDA.
The 360-acre campus grows to become a major manufacturing base for the company in Europe, producing leading-edge silicon products.
1993: The Leixlip plant manufactures its first chip.
2000s: The Fab 24 manufacturing plant is constructed.
2001: Intel seeks 170 voluntary redundancies, the first job losses at the plant amid a global slump in demand for computer chips.
2005: The one-billionth microchip is manufactured at the Leixlip plant.
2009: Intel announces 294 compulsory redundancies at Leixlip due to a decline in demand for some of its technologies.
A generous offer of six weeks' pay on top of two weeks' statutory, capped at two years' wages, is offered.
2011: Intel seeks 100 voluntary redundancies after closing its Fab 10 plant.
Intel says it is planning to invest €363m in an upgrade of its Fab 14 manufacturing plant, which was shut in 2009.
But it proceeds with refurbishing Fab 10, Fab 24 and Fab 24-2, with around 5,000 temporary construction workers involved in the three-year project.
2013: Intel secures planning permission for a massive new Fab in Leixlip, which is capable of producing next-generation chips.
2014: Intel reveals a €3.63bn spend on a three-year upgrade of its Leixlip plant. It is described as the largest single investment in the history of the State.
2016: Intel's investment in Ireland equals €9bn, and the Intel campus in Leixlip is its largest plant outside the US. The world's largest computer chip maker announces it will cut 12,000 jobs globally, about 11pc of its workforce, by the middle of next year, amid falling PC sales.
The California-based company later confirms that Irish staff will be affected. Ireland manager Eamonn Sinnott tells staff they will learn their fate "within 72 hours" of May 4.
Rumours of job losses ranging from 500 to 1,500, voluntary and involuntary, abound.