Upturn Seen For Silicon Wafer Market


After a downturn in 2019, the silicon wafer market is expected to rebound in 2020. 2021 looks even better for silicon wafers. Silicon wafers are a fundamental part of the semiconductor business. Every chipmaker needs to buy them in one size or another. Silicon wafer vendors produce and sell bare or raw silicon wafers to chipmakers, who in turn process them into chips. The silicon wafer ma... » read more

A Benchmark Study Of Complementary-Field Effect Transistor (CFET) Process Integration Options: Comparing Bulk vs. SOI vs. DSOI Starting Substrates


Sub-5 nm logic nodes will require an extremely high level of innovation to overcome the inherent real-estate limitations at this increased device density. One approach to increasing device density is to look at the vertical device dimension (z-direction), and stack devices on top of each other instead of conventionally side-by-side. The fabrication of a Complementary-Field Effect Transistor (CF... » read more

ESD Requirements Are Changing


Standards for specifying a chip’s ability to withstand electrostatic discharge (ESD) are changing – in some cases, getting tougher, and in others, easing up. ESD protection has been on a path from a one-size-fits-all approach to one where a signal’s usage helps to determine what kind of protection it should get. Protecting chips from ESD damage has been a longstanding part of IC design... » read more

A Benchmark Study Of Complementary-Field Effect Transistor (CFET) Process Integration Options Done By Virtual Fabrication


Four process flow options for Complementary-Field Effect Transistors (C-FET), using different designs and starting substrates (Si bulk, Silicon-On-Insulator, or Double-SOI), were compared to assess the probability of process variation failures. The study was performed using virtual fabrication techniques without requiring fabrication of any actual test wafers. In the study, Nanosheet-on-Nanoshe... » read more

Design Of An Ultra-Low-Power Current Steering DAC In A Modern SOI technology


Despite the tremendous advancement in innovations on digitizing and processing signals over the last century, real world signals are inevitably analog in nature. A digital-to-analog converter (DAC) serves in translating these digitized signals into different analog quantities like voltage, current or charges. We mainly focus on a Nyquist-rate current-steering digital- to-analog converte... » read more

Manufacturing Bits: Dec. 31


GaN-on-SOI power semis At the recent IEEE International Electron Devices Meeting (IEDM), Imec and KU Leuven presented a paper on a gallium-nitride (GaN) on silicon-on-insulator (SOI) technology for use in developing GaN power devices. With GaN-on-SOI technology, researchers have developed a 200-volt GaN power semiconductor device with an integrated driver and fast switching performance. ... » read more

A Benchmark Study Of Complementary-Field Effect Transistor (CFET) Process Integration Options


Sub-5 nm logic nodes will require an extremely high level of innovation to overcome the inherent real-estate limitations at this increased device density. One approach to increasing device density is to look at the vertical device dimension (z-direction), and stack devices on top of each other instead of conventionally side-by-side. [1] The fabrication of a Complementary-Field Effect Transistor... » read more

Manufacturing Bits: April 23


Sorting nuclei CERN and GSI Darmstadt have begun testing the first of two giant magnets that will serve as part of one of the largest and most complex accelerator facilities in the world. CERN, the European Organization for Nuclear Research, recently obtained two magnets from GSI. The two magnets weigh a total of 27 tons. About 60 more magnets will follow over the next five years. These ... » read more

Mixed Outlook For Silicon Wafer Biz


After a period of record growth, the silicon wafer industry is off to a slow start in 2019 and facing a mixed outlook. Generally, 200mm silicon wafer supply remains tight. But demand for 300mm silicon wafers is cooling off in some segments, causing supply to move toward equilibrium after a period of shortages. On average, though, silicon wafer prices continue to rise despite the slowdown. ... » read more

Manufacturing Bits: Jan. 2


Better nanowire MOSFETs At the recent IEEE International Electron Devices Meeting (IEDM), Imec and Applied Materials presented a paper on a new and improved way to fabricate vertically stacked gate-all-around MOSFETs. More specifically, Imec and Applied reported on process improvements for a silicon nanowire MOSFET, which is integrated in a CMOS dual work function metal replacement metal ga... » read more

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