The maker of chip-interface products said Tuesday that CEO Harold Hughes will serve as interim CFO until a replacement has been found.
"Bob has made a significant contribution to Rambus for nearly five years and we are saddened to see him depart but wish him well in his new opportunity," Hughes said in a statement.
Eulau joined Rambus in May 2001. Prior to Rambus, he held various financial and marketing management positions during his 16 years at
, most recently serving as CFO in the business customer organization.
Following the announcement, shares of Rambus were off more than 5% in after-hours trading to $27.19 on Instinet.