EXHIBIT 10.13 LETTER OF CONSENT/COEXISTENCE AGREEMENT THIS AGREEMENT is made and entered into on October 3, 2006 by and between CADENCE DESIGN SYSTEMS, INC., (hereinafter "Cadence") a corporation duly organized and existing under the laws of the state...Letter of Consent/Coexistence Agreement • August 8th, 2007 • Allegro Microsystems Inc • Semiconductors & related devices • California
