Entries by Gigi Boss
Investigation of Self-Heating Effects in SOI MOSFETs with Silvaco Numerical Simulation
Self-heating effect may cause over-heated damage and degradation for silicon-on-insulator (SOI) devices, so numerical counting heat generated, and distribution can optimize the radio frequency integrated circuits (RFICs) applications. Both conventional and high resistivity, trap-rich SOI substrates are fabricated to investigate self-heating effects. There are two identical n channel metal-oxide-semiconductor-field-effect transistors (nMOSFETs) placed together to share a common source and the same active silicon region. One MOSFET is biased above threshold voltage and into saturation to heat-up the active region as a heater, and another device is biased into the sub-threshold regime to track the temperature changes as a localized thermometer. Compared to bulk single crystal silicon, the trap-rich SOI substrate consists of a high-defected polysilicon layer, which has introduced between the buried oxide layer and substrate. Due to the grain boundaries, the polysilicon layer has more phonon scattering and less value of thermal conductivity. However, based on the measurement results, two types of substrates SOI devices have similar performance for temperature increased. Therefore, a Silvaco numerical simulation has been issued to analysis the heat flow distribution within the devices and dissipation solution.
Learn About Silvaco’s AMBA AHB Subsystems and How to Customize, Secure, and Verify
May 12, 2022
In this webinar, we will provide an overview of the AMBA AHB subsystems and products offered by Silvaco. Some topics of discussion include Channel vs. Fabric architecture, low power, customization, hardware- and software-based security, and co-verification of the hardware and software.
How to Use Victory Quantum Transport Models for Atomistic Device Performance Predictions
May 5, 2022
In this webinar, the latest incoherent scattering models of the quantum transport implementations are presented. They faithfully reproduce–without adjustable parameters–experimental observations of band gap narrowing and Urbach band tails in a sequence of III-V semiconductors and transition metal dichalcogenides.
Learn How to Improve TFT-Based Flat Panel Designs with the Unique SmartSpice 4-Terminal TFT Model
April, 28, 2022 (PDT)
In this webinar, we will describe SmartSpice’s 4-terminal TFT compact model. Unique in the market, we present some of the characteristics of this compact model, and some of the degrees of freedom that it brings to both the modeling and the design teams.
How Can I Remesh a Structure Using a Custom Volume Mesh in Victory Mesh?
Victory Mesh support for line statements lets the user customize the volume mesh used by conformal remesh schemes. The volume mesh data inherited from Victory Process can be replaced with a new volume mesh defined within Victory Mesh, allowing full control over the conformal remesh and generating a mesh suitable for device simulation in Victory Device.
In this hints and tips two case studies are discussed.
In the first, a solid modeling case will show how a FinFET is made using solid modeling commands, and how a volume mesh generated with line statements in Victory Mesh is used to generate a conformal remesh. A comparison of device simulations with a refined Delaunay mesh is also presented.
In the second, a buffered super junction LDMOS is loaded from Victory Process and remeshed using a customized volume grid created with line statements in Victory Mesh.
Learn How mqSemi AG Developed 3D Power Devices Proof of Concept with Silvaco TCAD Simulations
March 24, 2022 | 10:00 am – 10:30 am (PDT)
In this Webinar, we will introduce mqSemi and the 3D TCAD models and simulation results while highlighting Silvaco`s powerful Victory Process and Device.
Simulation of AlGaInP Multiple Quantum Well LED for Micro Display
The flat panel display industry has been growing rapidly for recent years in mobile display, car display, AR/VR applications, and large-scale TVs display. The core technology enabling these applications is the light emitting diode (LED), which is a key component to realize the highly visible, power efficient, displays. For decades, many researchers have developed blue and green LEDs using wide band gap GaN-based wurtzite crystalline material, and successfully manufactured LED devices. However, to make a bright white LED and/or an integrated RGB display, red and yellow LED is also needed. To accomplish this, a smaller bandgap material like a cubic AlGaInP material can be used.