A systematic method for modifying march tests for bit-oriented memories into tests for word-oriented memories

A Systematic Method for Modifying March Tests for Bit-Oriented Memories into Tests for Word-Oriented Memories

Most memory test algorithms are optimized for a particular memory technology and a particular set of fault models, under the assumption that the memory is bit-oriented, i.e., read and write operations affect only a single bit in the memory. Traditionally, word-oriented memories have been tested by repeated application of a test for bit-oriented memories, whereby a different data background is u...

Homodyne detection readout for bit-oriented holographic memories.

Homodyne detection is proposed to increase the readout signal of bit-oriented holographic memories. It can be easily implemented on present memory architectures by making the diffracted signal interfere with a reflection of the reading beam. The large resulting increase of the readout signal can be used to enhance the data transfer rate. A first experimental demonstration of such a readout proc...

A New Test Methodology for Word-Oriented Memories

With growing of memory capacity, to detect memory faults is more and more difficult, and its cost increases rapidly. Since these faults seriously decrease the yield rate of memories, it is necessary to find an effective test algorithm for memory to improve the chip yield rate. In these days, as word-oriented memories are broadly used, testing for word-oriented memory becomes more important. In ...

Fault Pattern Oriented Defect Diagnosis for Memories

Failure analysis (FA) and diagnosis of memory cores plays a key role in system-on-chip (SOC) product development and yield ramp-up. Conventional FA based on bitmaps and the experiences of the FA engineer is time consuming and error prone. The increasing time-to-volume pressure on semiconductor products calls for new development flow that enables the product to reach a profitable yield level as ...

Dynamic Data Encoding for Page-oriented Memories