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Partitioning In 3D


The best way to improve transistor density isn't necessarily to cram more of them onto a single die. Moore’s Law in its original form stated that device density doubles about every two years while cost remains constant. It relied on the observation that the cost of a processed silicon wafer remained constant regardless of the number of devices printed on it, which in turn depended on litho... » read more

Practical Methods To Overcome The Challenges Of 3D Logic Design


What should you do If you don’t have enough room on your floor to store all your old boxes? Luckily, we live in a 3D world, and you can start stacking them on top of each other. The Challenge: How can we shrink logic devices? Logic designers are currently facing even bigger challenges than you might be having in tidying up your storage area. Not only are logic cells highly packed together... » read more

How Small Will Transistors Go?


By Mark LaPedus & Ed Sperling There is nearly universal agreement that Moore’s Law is slowing down. But whether it will truly end, or just become too expensive and less relevant—and what will supplant device scaling—are the subject of some far-reaching research and much discussion. Semiconductor Engineering sat down with each of the leaders of three top research houses—[getent... » read more

Stacking Logic On Logic


Advanced packaging can be an alphabet soup of possible approaches, from heterogenous integration of multiple die types into a single package, to three-dimensional stacking of multiple dies on top of each other. Three-dimensional chip stacking is most commonly seen in memory devices. Applied to logic, though, there are at least two different ways for integration to proceed. Completely process... » read more

Placing Bets On Future Technology


Marie Semeria, CEO of Leti, sat down with Semiconductor Engineering to talk about where the French research and technology organization is placing its future technology bets and what's behind those decisions. What follows are excerpts of that discussion. SE: It's becoming more difficult and expensive to shrink features, so where do we go next? Semeria: We see several areas that we believe... » read more