Recent Advances in Precision Diamond Wire Sawing Monocrystalline Silicon

Characterization of the Diamond Wire Sawing Process for Monocrystalline Silicon by Raman Spectroscopy and SIREX Polarimetry

A detailed approach to evaluate the sub-surface damage of diamond wire-sawn monocrystalline silicon wafers relating to the sawing process is presented. Residual stresses, the presence of amorphous silicon and microcracks are considered and related to diamond wire velocity and cutting ability. In particular, the degree of amorphization of the wafer surface is analyzed, as it may affect the etchi...

Revolution in Diamond Cutting: Laser Sawing of Diamond Crystals

Laser sawing of diamonds is beginning to revolutionize the diamond-cutting industry. Not only does the laser saw offer savings in time and money, but it also enables the cutting of material virtually unworkable by conventional methods and makes available an almost limitless assortment of fancy shapes. This article describes the components and operation of the laser saw, as well as the situation...

Measurement and Analysis of Wire Sawing Induced Residual Stress in Photovoltaic Silicon Wafers

Recent Advances in Silicon Photonic Integrated Circuits

We review recent breakthroughs in silicon photonics technology and components and describe progress in silicon photonic integrated circuits. Heterogeneous silicon photonics has recently demonstrated performance that significantly outperforms native III-V components. The impact active silicon photonic integrated circuits could have on interconnects, telecommunications, sensors and silicon electr...

Silicon Photonics — Recent Advances in Device Development

31.1 Silicon Photonics Fundamentals 31.1.1 A historical perspective 30.1.2 Silicon waveguide 30.2 Coupling Light to Silicon Waveguides 30.2.1 Problem of external coupling 30.2.2 Nonvertical taper (NVT) 30.2.3 Grating coupler 30.2.4 Nanotaper 30.3 Resonant Structures 30.3.1 Principle of directional coupling 30.3.2 Mach-Zehnder interferometers 30.3.3 Ring Resonators 30.4 Modulation of Optical Sig...