March 17, 2008 PCN number: 0802 PCN Change Level: Minor Subject: Process Enhancement for RTAX-S FPGA Products Dear Customer, This notice is to inform you that Actel has implemented a refinement in the antifuse etch process for all RTAX-S products manufactured at its United Microelectronics Corporation (UMC) wafer foundry. The change is to improve the antifuse alignment control for improved manufacturability and wafer delivery through tighter process control. This notice affects all RTAX-S devices as listed in Appendix A on page 2. The process enhancement involves only a minor adjustment during the etching process. Changes remain within the allowable process window of the etching recipe, with no change in the antifuse material, layer thickness, and E-test specification. The enhancement was first implemented on the RTAX4000S product, which has completed the MIL-STD-883 Class B qualification (see Actel press release on January 28, 2008). The enhanced etching procedure has now been implemented on all versions of the RTAX2000S, RTAX1000S, and RTAX250S products based on this successful qualification of the RTAX4000S. The RTAX2000S, RTAX1000S, and RTAX250S devices with the enhanced etch process will be phased in as required to meet production requirements, shipping no earlier than July, 2008. If you have any questions, please contact Actel's Application Technical Support at [email protected]. Regards, Actel Corporation Actel Corporation 2061 Stierlin Court, Mountain View, CA 94043 Phone: 650.318.4200 Fax 650.318.4600 Appendix A Actel Device RTAX250S Table 1. Devices with Enhanced Etch Process Package Speed Flow CQ208, CQ352 Std, –1 B, E, EV, Proto DSCC Part Number 5962-0421901QYC 5962-0421902QYC 5962-0421903QYC 5962-0421904QYC 5962-0421901QXC 5962-0421902QXC 5962-0421903QXC 5962-0421904QXC RTAX1000S CQ352, CGB624, CGS624, LG624 Std, –1 B, E, EV, Proto 5962-0422001QXC 5962-0422002QXC 5962-0422003QXC 5962-0422004QXC 5962-0422001QZA 5962-0422002QZA 5962-0422003QZA 5962-0422004QZA 5962-0422001QUA 5962-0422002QUA 5962-0422003QUA 5962-0422004QUA 5962-0422001QYC 5962-0422002QYC 5962-0422003QYC 5962-0422004QYC Actel Corporation 2061 Stierlin Court, Mountain View, CA 94043 Phone: 650.318.4200 Fax 650.318.4600 Actel Device RTAX2000S Table 1. Devices with Enhanced Etch Process Package Speed Flow CQ256, CQ352, CGB624, CGS624, LG624, CG1152, LG1152 Std, –1 B, E, EV, Proto DSCC Part Number 5962-0422101QUC 5962-0422102QUC 5962-0422103QUC 5962-0422104QUC 5962-0422101QXC 5962-0422102QXC 5962-0422103QXC 5962-0422104QXC 5962-0422101QZA 5962-0422102QZA 5962-0422103QZA 5962-0422104QZA 5962-0422101QNA 5962-0422102QNA 5962-0422103QNA 5962-0422104QNA 5962-0422101QYC 5962-0422102QYC 5962-0422103QYC 5962-0422104QYC 5962-0422101QTA 5962-0422102QTA 5962-0422103QTA 5962-0422104QTA 5962-0422101QMC 5962-0422102QMC 5962-0422103QMC 5962-0422104QMC Actel Corporation 2061 Stierlin Court, Mountain View, CA 94043 Phone: 650.318.4200 Fax 650.318.4600 Actel Device Table 1. Devices with Enhanced Etch Process Package Speed Flow DSCC Part Number CQ352, CG1272, LG1272 Std B, E, EV, Proto Not Applicable RTAX250SL CQ208, CQ352 Std, –1 B, E, EV Not Applicable RTAX1000SL CQ352, CGB624, CGS624, LG624 Std, –1 B, E, EV Not Applicable RTAX2000SL CQ256, CQ352, CGB624, CGS624, LG624, CG1152, LG1152 Std, –1 B, E, EV Not Applicable RTAX4000S Actel Corporation 2061 Stierlin Court, Mountain View, CA 94043 Phone: 650.318.4200 Fax 650.318.4600