Manufacturing Bits: Nov. 3


Zeptosecond measurements A group of researchers have set a new world’s record for the shortest timespan measurement. DESY, Fritz-Haber-Institute and Goethe University Frankfurt have measured how long it takes for a photon to cross a hydrogen molecule. The result? About 247 zeptoseconds. A zeptosecond is a trillionth of a billionth of a second (10-21 seconds). This is said to be the sh... » read more

Micro Loading And Its Impact On Device Performance


In a DRAM structure, the charging and discharging process of capacitor-based memory cells is directly controlled by the transistor [1]. With transistor sizes approaching the lower limits of physical achievability, manufacturing variability and micro loading effects are becoming increasingly critical DRAM performance (and yield) limiters. The transistor’s AA (active area) dimension and profile... » read more

Week In Review: Manufacturing, Test


Trade and government The U.S. continues to tighten its export controls for hi-tech, including a move to restrict fab technologies that enable 5nm chip production. The U.S. Department of Commerce has imposed controls on six more technologies, bringing the total to 37. They include: hybrid additive manufacturing/computer controlled tools; computational lithography software designed for EUV masks... » read more

Manufacturing Bits: Oct. 27


Single-molecule switches A group of researchers have demonstrated a single-molecule switch or electret, a technology that could one day enable a new class of non-volatile memory storage devices. Yale University, Nanjing University, Renmin University, Xiamen University, and the Rensselaer Polytechnic Institute have demonstrated a single-molecule electret with functional memory. Still in ... » read more

Rethinking The Scaling Mantra


What makes a new chip better than a previous version, or a competitor's version, has been changing for some time. In most cases the key metrics are still performance and power, but what works for one application or use case increasingly is different from another. Advancements are rarely tied just to process nodes these days. Even the most die-hard proponents of Moore's Law recognize that the... » read more

Si Hardmask (Si-HM), EUV And Zero Defects


The multilayer system used in lithography consists of a planarizing carbon layer beneath a hardmask etch-transferring layer and capped with a standard photoresist coating. In the past, Brewer Science has discussed in-depth how the multilayer system helped to extend ArF (193 nm) immersion lithography to be able to print and transfer ever-shrinking features, ensuring enough process window especia... » read more

Regaining The Edge In U.S. Chip Manufacturing


The United States is developing new strategies to prevent it from falling further behind Korea, Taiwan, and perhaps even China in semiconductor manufacturing, as trade tensions and national security concerns continue to grow. For years, the U.S. has been a leader in the development of new chip products like GPUs and microprocessors. But from a chip manufacturing standpoint, the U.S. is losin... » read more

Virtual Fabrication At 7/5/3nm


David Fried, vice president of computational products at Lam Research, digs into virtual fabrication at the most advanced nodes, how to create models using immature processes at new nodes, and how to fuse together data from multiple different silos. » read more

Week In Review: Manufacturing, Test


Chipmakers AMD and Xilinx have entered into a definitive agreement for AMD to acquire Xilinx in an all-stock transaction valued at $35 billion. With the proposed deal, AMD will enter the FPGA business, putting it further in competition with Intel. The transaction has been unanimously approved by the AMD and Xilinx boards. The transaction is expected to close by the end of calendar year 2021. U... » read more

What’s Ahead For Chips & Equipment?


It’s been a topsy-turvy year in the semiconductor industry. 2020 was supposed to be a strong year. Then, the coronavirus outbreak hit. Countries implemented various measures to mitigate the outbreak, such as stay-at-home orders and store closures. Economic turmoil and job losses soon followed. Earlier in the year, the chip market looked bleak. Now, business appears to be strong. To gain... » read more

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