Screening For Known Good Interposers


Ensuring the quality of silicon and organic interposers is becoming harder as the number of signals passing through them continues to grow, fueled by more chiplets, higher processing demands, and more layers of devices assembled in a package. Interposers initially were viewed as relatively simple conduits. That perception has changed rather dramatically in recent years with the growing focus... » read more

True 3D-IC Problems


Placing logic on logic may sound like a small step, but several problems must be overcome to make it a reality. True 3D involves wafers stacked on top of each other in a highly integrated manner. This is very different from 2.5D integration, where logic is placed side-by-side, connected by an interposer. And there are some intermediate solutions today where significant memory is stacked on l... » read more