Rethinking Memory


Getting data in and out of memory is as important as the speed and efficiency of a processor, but for years design teams managed to skirt the issue because it was quicker, easier and less expensive to boost processor clock frequencies with a brute-force approach. That worked well enough prior to 90nm, and adding more cores at lower clock speeds filled the gap starting at 65nm. After that, th... » read more

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

Raise A Fence, Dig A Tunnel, Build A Bridge


There are three main options for chipmakers over the course of the next decade. Which option they choose depends upon their individual needs, talents, and how much and what kind of differentiation they believe will matter to them. The options roughly fall into three categories—fence, bridge or tunnel. The fence option Rather than changing anything, the entire ecosystem can stick to wha... » 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

2.5D Creeps Into SoC Designs


A decade ago top chipmakers predicted that the next frontier for SoC architectures would be the z axis, adding a third dimension to improve throughput and performance, reduce congestion around memories, and reduce the amount of energy needed to drive signals. The obvious market for this was applications processors for mobile devices, and the first companies to jump on the stacked die bandwag... » read more

One-On-One: Dave Hemker


Semiconductor Engineering sat down to discuss process technology, transistor trends and other topics with Dave Hemker, senior vice president and chief technology officer at [getentity id="22820" comment="LAM Research"]. SE: On the technology front, the IC industry is undergoing some new and dramatic changes. What are some of those changes? Hemker: We focus on what we call the inflections.... » read more

Designing For Security


Stacked die may improve performance and lower power, but the use of [getkc id="203" kc_name="through-silicon vias"] (TSVs) could add new security risks. As IC structures go, the vertical component of these chip packages is both a boon and a bust. Three-dimensional geometries allow for much less complexity in design by stacking two-dimensional dies and interconnecting them in the third dimens... » read more

2.5D Timetable Coming Into Focus


After years of empty promises, the timetable for [getkc id="82" kc_name="2.5D"] is coming into better focus. Large and midsize chipmakers are behind it, real silicon is being developed, and contracts are being signed. That doesn't mean all of the pieces are in place or that market uptake is at the neck of the hockey stick. And it certainly doesn't mean the semiconductor industry is going to ... » read more

Multi-Die Packaging Gains Steam


By Herb Reiter Many readers will be familiar with my extensive background and focus in the emerging field of 3D IC technology, including both 3D stacked die and 2.5 interposer design flows. Now, I am excited to bring my expertise and passion to Silicon Integration Initiative (Si2), where I am now Director of 3D Programs, helping Si2’s members in the Open3D Technical Advisory Board develop pr... » read more

When Will 2.5D Cut Costs?


There is a constant drive to reduce costs within the semiconductor industry and, up until now, [getkc id="74" comment="Moore's Law"] provided an easy path to enable this. By adopting each smaller node, transistors were cheaper, but that is no longer the case, as explained in a recent article. The industry will need to find new technologies to make this happen and some people are looking towards... » read more

← Older posts Newer posts →