本文研究了一种应用于海洋严酷（湿热-氯盐耦合）环境的高性能绿色建筑材料——纳米SiO2（NS）与混杂纤维（HF）增强的地聚合物凝胶混凝土（NSHFGPC）。研究者构建了径向基函数（RBF）与反向传播（BP）复合神经网络，成功预测了NSHFGPC在模拟海洋环境加速老化后 ...

After more than a decade of research and development, Tokyo Electron Miyagi Ltd. has introduced an innovative semiconductor etching method that achieves etch rates up to five times faster than ...

A study of the synthesis of MCM-41 mesoporous molecular sieves in fluoride media, having no alkaline metal ions, was performed by changing the gel composition and crystallization temperature and time.

The Paleo-Asian and Tethyan oceans are two extinct ancient oceans. The Paleo-Asian Ocean was formed during the breakup of the Rodinia Supercontinent in the Mesoproterozoic to Neoproterozoic. Tethys ...

Abstract: This paper introduces a novel and simple etching technique that utilizes a mixture of sulfuric acid (H2 SO4) and hydrofluoric acid (HF). This method selectively etches silicon dioxide (SiO2) ...

The continents primarily consist of cratons and orogenic belts, of which cratons predominantly originated 1.8 billion years ago, serving as crucial constituents of the Earth’s surface. Most of the ...

Abstract: The etch dynamics of low-density undoped silica glass oxide (USG) and Si-rich SiN x:H thin films in a 25-wafer batch vapor HF tool operating at low etching pressure were studied. Up to ...

Quadrupole mass-spectroscopy has reported significant neutral and ionic species in the unique C 5 HF 7 /O 2 /Ar plasma, including C x F y (X>2), C x HF y, and C x F y (Y/X<2). Using C 5 HF 7 /O 2 /Ar ...

本文我们研究了高频和高频/HCI溶液中的不同平衡点，并研究了SiQ的蚀刻反应作为高频溶液中不同物种的函数。基于HF二聚体的 ...

摘要：BOE/HF 的三个主要用途是： 1、去除下面悬浮在硅片上的微结构的牺牲氧化层。 2、去除图案化硅晶片上不需要的二氧化硅。 3、去除硅片上的原生寄生二氧化硅，为热氧化做准备。 4、40% HF 用于快速去除氧化物。 5、BOE 去除氧化物的速度较慢，但可以延长 ...

Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States Department of Chemical and Biomolecular Engineering, University of California, Berkeley, ...