Multiple synchronous dynamic random access memories (SDRAMs) are packaged in a single or a dual in-line memory module to have similar physical and architectural characteristics of dynamic random access memories (DRAMs) packaged in single/dual in-line memory modules. A 168 pin SDRAM DIMM family is presented...http://www.google.de/patents/US5513135?utm_source=gb-gplus-sharePatent US5513135 - Synchronous memory packaged in single/dual in-line memory module and method of fabrication
