High Quality Content by WIKIPEDIA articles! Integrated Device Manufacturers such as chip makers from Intel and Samsung that design, manufacture and sell their chips. Fabless manufacturers such as Qualcomm and NVIDIA that design and sell chips but outsource manufacturing to foundry companies. Other article would distinguishes foundry companies such as TSMC and UMC that manufacture chips designed and sold by their customers especially from fabless companies. Another article for semiconductor equipment sales leaders would distinguishes IC equipment supplier's revenue which support all the semiconductor companies. Gartner Dataquest Corp. has the longest history as the reference publisher of this ranking. Another sources of semiconductor sales market share have also become available by iSuppli Corporation starting from for year 2000. Only corporate semiconductor revenues are taken into account and businesses activities outside this sphere are excluded, for example IBM non-semiconductor business lines are excluded.