Novellus Systems Inc. was a company founded by Brad Mattson that developed, manufactured, sold, and serviced semiconductor equipment used in the fabrication of integrated circuits.

Novellus Systems was founded in 1984 and is headquartered in San Jose, California.

[1] The company maintains engineering & manufacturing facilities in Tualatin, Oregon and San Jose, California.

Also, Novellus has a component design and software development facility in Bangalore, India.

Novellus' product lines were called ALTUS, ATHENA, GAMMA, INOVA, SABRE, SOLA, SPEED, and VECTOR, SEQUEL and assisted semiconductor companies with manufacturing.