Once upon a time, lithographic (litho) processes were all that IC fabs needed to transfer the design-intent into silicon chips. Over the last 10-15 years, however, IC device structural features have continued to shrink below half the wavelength of the laser light used in litho tools, such that additional process steps are needed to form the desired features. Self-Aligned Double Patterning (SADP) schemes use precise coatings deposited as “spacers” on…
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3D XPoint uses PCM Material in ReRAM Device
IM Flash pre-announced “3D XPoint”(TM) memory for release later this year, and lack of details has led to widespread confusion regarding what it is. EETimes has reported that, “Chalcogenide material and an Ovonyx switch are magic parts of this technology with the original work starting back in the 1960’s,” said Guy Blalock, co-CEO of IM Flash at the 2016 Industry Strategy Symposium hosted by the SEMI trade group. However, contradicting…
Does Consolidation Put Innovation at Risk?
Consolidation in the semiconductor industry continues apace, with more than $100 billion in mergers and acquisitions announced in 2015, and more to come in 2016. “With our industry growth rates being so low, it’s a lot cheaper to acquire market share than it is to invest and beat your competitor over the head,” said analyst Bill McClean, speaking at SEMI’s Industry Strategy Symposium (ISS) in January. One potentially negative impact…
Controlling Polymers to Tune TFTs
Thin-film transistors (TFT) created using only additive process steps could create new low-cost ICs with functionalities beyond silicon, but only if we understand how to control structures at the molecular level. Thin films of conjugated polymers such as poly(3-hexylthiophene) (P3HT) can provide useful conductivity when the electron mobilities are controlled within as well as between molecules. In producing TFTs using such organic macromolecules, we must rigorously control the deposition and…
Viewpoints: 2016 outlook
Each year, Solid State Technology turns to industry leaders to hear viewpoints on the technological and economic outlook for the upcoming year. Read through these expert opinions on what to expect in 2016. New technologies will fuel pockets of growth in 2016 By Mike Plisinski, Chief Executive Officer, Rudolph Technologies, Inc. While the 2016 outlook for the semiconductor industry as a whole appears increasingly uncertain, there are areas where significant…
CMOS-Photonic Integration Thermally Sensitive
As published in the journal Nature, CMOS transistors have been integrated with optical-resonator circuits using complex on-chip sensors and heaters to maintain temperature to within 1°C. While lacking the laser-source, these otherwise-fully-integrated solutions demonstrate both the capability as well as the limitation of trying to integrate electronics and photonics on a single-chip. The Figure shows a simplified schematic cross-section of the device. Lead author Chen Sun—affiliated with UC Berkeley and…
Apple Fab Speculation
Apple Corp. recent purchased an old 200mm-diameter silicon wafer fab in San Jose capable of creating as small as 90nm device features. Formerly owned and operated by Maxim, the US$18.2M purchase reportedly includes nearly 200 working fab tools. Some people outside the industry have speculated that Apple might use this fab to do R&D on the A10 or other advanced logic chips, but this old tool-set is completely incapable of…
MPU Cores and Legal Boors
As reported by The Register, AMD has been sued by a customer who claims that the number of Bulldozer cores in some Opteron and FX microprocessor (MPU) chips are fewer than advertised. The claim is based on the argument that a “real” MPU core has it’s own floating point unit for calculations, and that consumers were misled by product claims. I am not a lawyer (IANAL) and have no connections…
The First Degree – Ominous Threshold Reached
In light of the Paris climate talks going on this week, I’m delighted to turn this blog over to a guest blogger, Mike Czerniak. Mike is the Environmental Solutions Business Development Manager at Edwards, and has been working in the semiconductor industry for more than 30 years. In 2014, he received SEMI’s Merit Award for his work on the Energy Saving Equipment Communication Task Force responsible for developing new standards…
Thermoplastically Deformable Electronic Circuits
Philips is testing a technology developed by imec and CMST (imec’s associated lab at Ghent University) to create low-cost 3D LED packages. As shown at last month’s International Microelectronics Assembly and Packaging Society (IMAPS 2015) meeting, these thermoplastically deformable electronic circuits are already being integrated by Philips into LED lamp carriers, a downlight luminaire, and a omnidirectional light source. The technology is based on meander-shaped interconnects, which are patterned using …
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