发明名称 Pattern generator for memory burn-in and test
摘要 A system and method for testing of a memory during burn-in is disclosed. In one aspect, the method and system include an address generator. The address generator includes a shift register means. The shift register includes n bit positions. The n bit positions are for storing n bits. The n bits are capable of being in a plurality of patterns. The address generator further includes a counter coupled to the shift register means. The counter includes a value that is incremented in response to a particular pattern of the plurality of patterns. The address generator has a complement mechanism coupled to the shift register and the counter which provides a complement of at least a portion of the n bits stored in the n bit positions in response to the value in the counter. In another aspect, the method and system comprise the address generator previously discussed coupled to the memory undergoing testing. In this aspect, the method and system further have a data generator coupled to the address generator and the memory and compare circuitry coupled to the memory and the data generator. In this aspect, a fail is detected when data from the data generator does not match data stored in the memory.
申请公布号 US6006345(A) 申请公布日期 1999.12.21
申请号 US19970853597 申请日期 1997.05.09
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 BERRY, JR., ROBERT W.
分类号 G11C29/20;G11C29/36;G11C29/38;(IPC1-7):G06F11/00 主分类号 G11C29/20
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