Semiconductor memory module has two rows of DRAM chips arranged to give leads of equal length that are as short as possible

摘要

A semiconductor memory module comprises an electronic printed circuit board having many similar memory chips (3) on the surface and an edge (10) contact strip (11) with a row of contacts and two neighboring rows of similar rectangular chips of shorter (a) and longer (b) dimensions above one another. The chips in one set have their shorter measurement parallel to the contact strip while those of the other set have their longer measurement parallel to the contact strip.