Hi, Virtually all of major processor and FPGA vendors have an evaluation board for their products in which they utilized DDR2 or DDR3; and schematics/GERBER files is usually available. So if you know to which processor/FPGA that DDR2 is connected to, you can find an evaluation board for that processor/FPGA and see if its schematics or GERBER files is available. But a better point to start is a Designer's checklist from FreeScale named: AN2910.pdf : Hardware and layout Design Consideration for DDR2 Massoud Shakeri -----Original Message----- From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of vinoth raja Sent: Sunday, September 11, 2011 9:47 AM To: si-list@xxxxxxxxxxxxx Subject: [SI-LIST] DDR2 Gerber files Hallo! I need to learn somthing about DDR2 & DDR3. So i request need DDR2 gerber files. Regards, Vinoth ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List technical documents are available at: http://www.si-list.net List archives are viewable at: //www.freelists.org/archives/si-list Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu