Topological insulators are good candidates for charge to spin conversion with high efficiency due their spin-polarized topological surface states (TSSs). In this work, we provide experimental evidence two-dimensional (2D) TSSs in ${(\mathrm{Sn}{\mathrm{Bi}}_{2}{\mathrm{Te}}_{4})}_{n} {({\mathrm{Bi}}_{2}{\mathrm{Te}}_{3})}_{m}$ natural van der Waals superlattices grown by molecular beam epitaxy ...

This paper presents a broadband stacked patch antenna array in wafer-level package based on benzocyclobutene (BCB) process for D-band wireless communications. The BCB material is not only used as substrate the antenna, but also an interconnection layer, enabling low-loss with RFICs through vias and transmission lines. By introducing polymer-filled back cavity carefully developing feeding networ...

Absfracf-Photosensitive benzocyclobutene (photo-BCB) is a class of photoimagable polymers developed for microelectronics under the trade name CycloteneTM with properties that we believe make it an attractive candidate for chronic implant applications. We report for the first time a complete microfabrication process of BCB polymer-based intracortical neural implant for chronic application. The n...

Introducción. Estudios sobre características estructurales del ovario asociadas con calidad complejo cúmulos-oocito (COCs) en bovinos, contribuyen la definición de estrategias para mejorar eficiencia reproductiva. Objetivo. Determinar el peso y tamaño los ovarios, folículos COCs hembras Cebú, establecer diferencias entre derecho e izquierdo. Materiales métodos. Entre marzo julio 2017, se obtuvi...

Abstract In this paper, a new ultra-compact substrate-less approach to heterogeneous integration of millimeter wave circuits is demonstrated. the proposed process, active and passive components are placed face down on temporary carrier. A thick layer benzocyclobutene (BCB) deposited surrounding these using aerosol jet printing (AJP). This followed by combination blanket deposition silver conduc...

Surface tension of material surfaces and interfaces is an important parameter that affects wetting and adhesion. Surface tension can be divided into three components: Lifshitz–van der Waals component, acid component, and base component. In this study, the three-liquid-probe method was used to investigate the surface tension and its three components of various surfaces of electronic packaging ma...

The paper presents an optimization algorithm that falls in the category of genetic, or evolutionary algorithms. While the bit exchange is the basis of most of the Genetic Algorithms (GA) in research and applications in America, some alternatives, also in the category of evolutionary algorithms, but use a direct, geometrical approach have gained popularity in Europe and Asia. The Bell-Curve Base...

Proper maturation of the mammalian oocyte is a compound processes determining successful monospermic fertilization, however the number of fully mature porcine oocytes is still unsatisfactory. Since oocytes' maturation and fertilization involve cellular adhesion and membranous contact, the aim was to investigate cell adhesion ontology group in porcine oocytes. The oocytes were collected from ova...

Numerous techniques have been used to improve the voltage handling capability of high voltage power devices with the aim to obtain the breakdown of a plane junction. In this work, a new concept of low cost, low surface and high efficiency junction termination for power devices is presented and experimentally validated. This termination is based on a large and deep trench filled by BCB (BenzoCyc...