SS April 2023

Setting up the Wafer Orientation: Applications to Ion Implantation

Properly setting the wafer orientation in Victory Process (VP) is critical for various processes such as ion implantation, etching, and deposition. For ion implantation in particular, the determination of the wafer orientation becomes crucial, given its profound impact on profile variations in channeling and non-channeling directions.

Optoelectronic Component Design for Photonic Integrated Circuits

Photonic integrated circuits (PICs) are a key enabling technology for a broad range of current and next-generation products. Combining semiconductor materials and manufacturing processes common to microelectronics with the encoding, transmission and detection of light, PICs are transforming communication in datacenters by bringing bandwidth closer to compute cores, and are accelerating emerging applications like LiDAR for autonomy and quantum computing for the future of information processing.
SS Feb 2024

Advanced TCAD Modeling of HfO2-based ReRAM:Coupling Redox Reactions and Thermal Effects

This paper presents a TCAD modeling approach for HfO2-based ReRAM (Resistive Random Access Memory). For describing the switching and retention behaviors of a ReRAM cell, the proposed model includes the essential redox reactions coupled to an electron transport model and to heat generation. The effects of various parameters such as sweep time, and device geometry on the switching behavior are investigated. Simulation results demonstrate that thermal management is crucial both for the reliable operation of ReRAM cells and retention. The proposed TCAD model provides insight into the design and optimization of HfO2-based ReRAM devices.

Numerical Algorithm to Perform Viscoelastic Analysis

Numerical Algorithm to Perform Viscoelastic Analysis Viscous materials exhibit both viscous and elastic characteristics when undergoing deformation. The response of such materials to force is characterized by two distinct phases. The materials first deform instantaneously akin to elastic materials. Following on, the material continues to deform at a relatively slower time scale. Typically, materials undergoing thermal treatment exhibit viscoelastic properties.
SS Aug 2023

2023 TCAD Baseline Release

New Features in the 2023 Baseline Release:
  • Section 1: Process Simulation – New Features in 2023 Baseline Release
  • Section 2: Device Simulation – New Features in 2023 Baseline Release
  • Section 3: Victory Mesh – New Features in 2023 Baseline Release
  • Section 4: New Examples in 2023 Baseline Release

Simulation Framework for Device-packaging Co-design for Power Electronics

The past several years has seen a fast deployment of wide-bandgap power devices in fast chargers, electric vehicles, data centers and renewable energy processing. The performance of power devices is fast progressing towards their intrinsic material limit. As these devices can handle higher voltage and larger current density, packaging and thermal management will become the key limiting factor for exploiting their benefits in power electronic converters and systems.

Understanding of Geometrical Boundary Conditions in Victory Process

It is common to run the process simulation for the part of a larger structure just to reduce the computation time. To account for the influence of parts of the structure outside the simulation domain, Victory Process makes assumptions about overall structure geometry.

Automatic Grid Refinement for Thin Material Layer Etching in Process TCAD Simulations

The utilization of thin material layers is common in modern semiconductor device fabrication. Subsequent etching steps require an accurate modeling of these thin layers. Although level-set based process TCAD simulations are capable of representing flat thin material layers with sub-grid accuracy, topographical changes during etching processes expose the low underlying grid resolution, which leads to detrimental artifacts.

How to Search, View and Use Default Parameters from the Silvaco Material DataBase SMDB with DeckBuild

Silver, DeckBuild’s material database viewer, can be used to examine the default parameters in the Silvaco Material DataBase (SMDB) and to generate MATERIAL commands for Victory Process and Victory Device. Silver can be started by clicking the launch button in DeckBuild.

3D TCAD Simulation of Gallium Nitride Tri-gate Junction HEMT

The GaN high electron mobility transistor (HEMT) has been commercialized as a power device with performance superior to Si devices in the voltage classes from 15 V to 900 V [1]. Most of commercial enhancement-mode (E-mode) HEMTs comprise a planar p-GaN gate. Recently, 3-D gate stacks, such as FinFET and tri-gate structures, have been introduced to lateral GaN HEMTs. They can realize superior gate controllability and E-mode operation with a higher current on/off ratio and lower gated channel resistance [2].