Exhibit 10.28 FIRST AMENDMENT TO PARTICIPATION AGREEMENT THIS FIRST AMENDMENT TO PARTICIPATION AGREEMENT (this "Amendment"), dated as of June 4, 1999, is entered into by and among: (1) NOVELLUS SYSTEMS, INC., a California corporation ("Lessee"); (2)...Participation Agreement • August 9th, 1999 • Novellus Systems Inc • Special industry machinery, nec • California
