Memory Choices Grow


Memory is becoming one of the starting points for SoC architectures, evolving from a basic checklist item that was almost always in the shadow of improving processor performance or lowering the overall power budget. In conjunction with that shift, chipmakers must now grapple with many more front-end decisions about placement, memory type and access prioritization. There are plenty of rules ... » read more

Advanced IC Packaging Biz Heats Up


After a number of false starts and lackluster adoption, the advanced IC packaging market is finally heating up. On one front, for example, a new wave of chips based on advanced [getkc id="82" kc_name="2.5D"]/[getkc id="42" kc_name="3D"] stacked-die is entering the market. And on another front, the momentum is building for new and advanced 2D packages, such as embedded package-on-package (PoP... » read more

One-On-One: Aaron Thean


Semiconductor Engineering sat down to discuss process technology, transistor trends and other topics with Aaron Thean, vice president of process technologies and director of the logic devices R&D program at Imec. SE: Chipmakers are ramping up the 16nm/14nm logic node, with 10nm and 7nm in R&D. What’s the current timeline for 10nm and 7nm? Thean: 10nm is on its way. We will see r... » read more

Fab Tool Biz Faces Challenges In 2015


After a slight downturn in 2013, the semiconductor equipment industry rebounded and experienced a solid upturn in 2014. The recovery was primarily driven by tool spending in the foundry and [getkc id="93" kc_name="DRAM"]sectors. Another big and ongoing story continued to unfold in 2014. In late 2013, [getentity id="22817" e_name="Applied Materials"] announced a definitive agreement to acquir... » read more

Different Approaches Emerge For Stacking Die


The concept of stacking die to shorten wires, improve performance, and reduce the amount of energy required to drive signals has been in research for at least the past dozen years at both IBM and Intel. And depending upon whom you ask, it could be another 2 to 10 years before it becomes a mainstream packaging approach—if it happens at all. At least part of the confusion stems from how you ... » read more

Wireless 3D Stacking


Hot Chips 26 wrapped up this week and there were many interesting presentations. One of the many presentations that caught my attention was given by Dave Ditzel, CEO of ThruChip, and is titled, “Low-Cost 3D Chip Stacking with ThruChip Wireless.” The technology is as it sounds — a wireless communication path for stacked die. The first question you may be asking is, ‘Why would anyone w... » read more

Mobile Packaging Market Heats Up


Apple, Samsung and others are developing the next wave of smartphones and tablets. OEMs want to cram more chip functions in smaller IC packages, but there are some challenges in the arena. In fact, there are signs that the mainstream packaging technology for mobiles is running out of steam. For some time, mobile products have incorporated a technology called package-on-package (PoP), which u... » read more

Time To Revisit 2.5D And 3D


Chipmakers are reaching various and challenging inflection points. In logic, many IC makers face a daunting transition from planar transistors at 20nm to finFETs at 14nm. And on another front, the industry is nearing the memory bandwidth wall. So perhaps it’s time to look at new alternatives. In fact, chipmakers are taking a hard look, or re-examining, one alternative—stacked 2.5D/3D chi... » read more

Many Stresses Impact TSVs


Too much stress in humans is typically not beneficial, and the same goes for 3D-ICs with through-silicon vias (TSVs). Stress effects here come from the fact that copper, which is the conductor of choice for the TSVs, and silicon have different coefficients of thermal expansion. “If you can imagine that a via will be etched through the silicon, copper will be deposited inside and then t... » read more

Manufacturing Bits: Jan. 21


Redefining The Kilogram In 2011, the General Conference on Weights and Measures approved a plan to redefine the kilogram and other measurement units. The new definition for the kilogram will be based on the fixed numerical values of Planck’s constant (h), according to the National Institute of Standards and Technology (NIST), part of the U.S. Department of Commerce. NIST has taken steps t... » read more

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