CROSSFEED PROBLEMS IN READ-WHILE-WRITE TAPE HEADS

Three-dimensional finite element models have been utilized to simulate the crossfeed problems in read-while-write (RWW) tape heads, and the results have been compared with experimental measurements, The most si gnificant contributors, such as shield structure, intershield spacing, and reproductive mode, have been identified, A new thin-film inductiv e/dual-magnetoresistive tape head design was found to reduce the cross feed by about a factor of 30, compared with the conventional shared-po le design, which is the most favored approach for achieving simultaneo us operation of the READ head and WRITE head.