Patent Document ID: 20050102590
Application ID: 10605927
Patent Status: 0

Claim One:
1. A method for testing a DDR DRAM having a test mode and an operational mode, comprising in the order recited: (a) placing said DDR DRAM in test mode; (b) issuing a bank activate command to select and bring up a wordline selected for write of said DDR DRAM; (c) writing with auto-precharge, a test pattern to cells of said DDR DRAM; (d) repeating steps (b) and (c) until all wordlines for write have been selected; (e) issuing a bank activate command to select and bring up a wordline selected for read of said DDR DRAM; (f) reading with auto-precharge, the stored test pattern from cells of said DDR DRAM; and (g) repeating steps (e) and (f) until all wordlines for read have been selected.