Improved graphene-base heterojunction transistor with different collector semiconductors for high-frequency applications


New research paper from TU Dresden & others. Abstract "A new kind of transistor device with a graphene monolayer embedded between two n-typesilicon layers is fabricated and characterized. The device is called graphene-base heterojunction transistor (GBHT). The base-voltage controls the current of the device flowing from the emitter via graphene to the collector. The transit time for e... » read more

A freeze-thaw molten salt battery for seasonal storage


New research paper from Pacific Northwest National Laboratory. Abstract "Grid-level storage of seasonal excess can be an important asset to renewable electricity. By applying the freeze-thaw thermal cycling strategy, here, we report Al-Ni molten salt batteries with effective capacity recovery over 90% after a period of 1–8 weeks as a proof-of-concept. We explore three activation methods... » read more

Week In Review: Manufacturing, Test


Deals AMD plans to purchase cloud startup Pensando for about US $1.9 billion. In a presentation at the SEMI ISS conference this week, AMD CTO Mark Papermaster described Pensando's technology as a "highly programmable packet-processing engine that allows you to speed up systems designed for the data center." Intel, Micron, Analog Devices and MITRE Engenuity formed an alliance to accelerate c... » read more

Week In Review: Design, Low Power


Synopsys and Juniper Networks are forming a new, separate company that will provide the industry with an open silicon photonics platform that will include integrated lasers, optical amplifiers, and a full suite of photonic components to form a complete solution that will be accessible through a Process Design Kit (PDK). The new company is being formed, in part, from the carve-out of integrated ... » read more

Week In Review: Auto, Security, Pervasive Computing


Automotive, mobility Qualcomm completed its acquisition of Arriver Business from SSW Partners. Arriver’s Driver Assistance, Computer Vision, and Drive Policy assets will become part of the Snapdragon Ride Platform. SSW Partners, a New York-based investment partnership, has acquired all shares in Veoneer, retaining its Tier-1 supplier and integrator businesses. Hyundai Motor Group gave Inf... » read more

Battery Management Getting Competitive For EVs


The success or failure of future electric vehicles will depend on where and how those cars are used, as well as significant advances in battery materials, energy density, and some very complex battery management systems. Battery power needs to be balanced, stored for extended times, and delivered to wherever it is needed most in real time. This is a huge challenge, and nearly everything in a... » read more

Standards And Threat Testing For Secure Autonomous Vehicles


Modern vehicles continue to move up through the levels of autonomy, as defined by The Society of Automotive Engineers (SAE). These definitions have been widely adopted across the industry and emerging vehicle technology is measured against this scale (figure 1). Fig. 1: An illustration from the Society for Automotive Engineers shows levels of autonomy. The closer we move towards level... » read more

Setting The Standard For Automotive Security


Vehicle systems and the semiconductors used within them are some of the most complex electronics seen today. In the past, electronics going into vehicle systems implemented flat architectures with isolated functions controlling various components of the power train and vehicle dynamics. These electronic systems communicated primarily through legacy bus interconnect protocols, like controller ar... » read more

Accelerating Automotive Safety Certification With ASIL Compliant Certified IP


By Pavithra C. Suriyanarayanan and Srini Krishnaswami The autonomous vehicle market is growing at a tremendous rate and functional safety in conventional, hybrid, and electric automobiles plays a significant role in achieving the required certification. Auto makers must go through numerous government regulations that call for increased safety and reliability all the way down to the component... » read more

Complex Chips Make Security More Difficult


Semiconductor supply chain management is becoming more complex with many more moving parts as chips become increasingly disaggregated, making it difficult to ensure where parts originated and whether they have been compromised before they are added into advanced chips or packages. In the past, supply chain concerns largely focused primarily on counterfeit parts or gray-market substitutions u... » read more

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