Author: vlsifacts

Compilation, Elaboration, and Simulation in HDL: A Clear Guide with Examples

Posted on By vlsifacts No Comments on Compilation, Elaboration, and Simulation in HDL: A Clear Guide with Examples

When working with Hardware Description Languages (HDLs) such as Verilog or VHDL, understanding the design flow is crucial for successful digital circuit development. Three fundamental steps in this flow are Compilation, Elaboration, and Simulation. These steps ensure that your HDL code is syntactically correct, logically consistent, and behaves as expected before hardware implementation. In this article, we will…

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Verification, Verilog

Japanese Chipmaker Rapidus Kicks Off 2nm Test Production: A Bold Step Toward 2027 Mass Production

Posted on By vlsifacts No Comments on Japanese Chipmaker Rapidus Kicks Off 2nm Test Production: A Bold Step Toward 2027 Mass Production

In a major leap forward for Japan’s semiconductor industry, Rapidus Corporation has officially started test production of 2-nanometer (2nm) chips, marking a critical milestone in the country’s ambitions to reclaim its position as a global tech innovator. The Hokkaido-based startup, backed by billions in government funding and industry partnerships, has also announced that it will…

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News

Understanding the 4-bit Ripple Carry Adder: Verilog Design and Testbench Explained

Posted on By vlsifacts No Comments on Understanding the 4-bit Ripple Carry Adder: Verilog Design and Testbench Explained

In digital electronics and VLSI design, adders are fundamental building blocks used to perform arithmetic operations. Among various types of adders, the 4-bit Ripple Carry Adder (RCA) is one of the simplest and most commonly studied designs. It is widely used to add two 4-bit binary numbers and produce a 4-bit sum along with a carry-out. This…

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Digital Electronics, Verilog

Designing a Two-Stage Flip-Flop Synchronizer to Eliminate Metastability in Clock Domain Crossing

Posted on By vlsifacts No Comments on Designing a Two-Stage Flip-Flop Synchronizer to Eliminate Metastability in Clock Domain Crossing

Welcome back to our Clock Domain Crossing (CDC) series! In our first post, we introduced the critical challenges of CDC in digital designs. In this article, we focus on one of the most fundamental and effective techniques to tackle metastability, a core issue in CDC: the two-stage flip-flop synchronizer. Understanding metastability and how this simple synchronizer design…

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Digital Electronics, SoC, Verilog

How to Design and Test a CRC Generator in Verilog Using Shift Registers and XOR

Posted on By vlsifacts No Comments on How to Design and Test a CRC Generator in Verilog Using Shift Registers and XOR

Ensuring data integrity is a critical aspect of digital communication and storage systems. One of the most reliable and widely used error-detecting techniques is the Cyclic Redundancy Check (CRC). If you’re working with FPGAs, ASICs, or digital systems, implementing a CRC generator efficiently in hardware is essential. In this comprehensive blog post, we’ll walk you through…

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Digital Electronics, Verilog

TSMC’s Q2 Profit Soars 60% to Record Highs, Fueled by AI Boom: What’s Next for the Chip Giant?

Posted on By vlsifacts No Comments on TSMC’s Q2 Profit Soars 60% to Record Highs, Fueled by AI Boom: What’s Next for the Chip Giant?

July 18, 2025 – Taiwan Semiconductor Manufacturing Company (TSMC), the world’s leading contract chipmaker, has once again defied expectations with a staggering 60.7% surge in second-quarter net profit, reaching a record-breaking NT$398.27 billion (US$13.53 billion). This powerhouse performance, driven by unrelenting demand for advanced chips powering artificial intelligence (AI) and high-performance computing (HPC), signals TSMC’s…

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News

Synopsys Acquires Ansys for $35 Billion: A New Era of “Silicon to Systems”

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July 17, 2025 – In a landmark move that’s reshaping the tech landscape, Synopsys, Inc. (NASDAQ: SNPS) has officially completed its $35 billion acquisition of Ansys, Inc. (NASDAQ: ANSS), creating a powerhouse in electronic design automation (EDA) and simulation software. Announced on January 16, 2024, and finalized today after securing global regulatory approvals, this stock-and-cash…

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News

The Mayor of Silicon Valley: Robert Noyce’s Journey from Pig Thief to Tech Titan

Posted on By vlsifacts No Comments on The Mayor of Silicon Valley: Robert Noyce’s Journey from Pig Thief to Tech Titan

A small-town Iowa boy, caught red-handed stealing a pig for a college prank, goes on to shape the modern world as the co-inventor of the microchip. This is the story of Robert Noyce, the man dubbed the “Mayor of Silicon Valley.” His life is a whirlwind of brilliance, rebellion, and innovation that transformed Silicon Valley…

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Stories

GPUHammer: The RowHammer Attack Targeting NVIDIA GPUs and AI Model Integrity

Posted on By vlsifacts No Comments on GPUHammer: The RowHammer Attack Targeting NVIDIA GPUs and AI Model Integrity

In the rapidly evolving world of artificial intelligence (AI), NVIDIA GPUs have become the backbone of machine learning (ML) and high-performance computing. However, a groundbreaking discovery by researchers at the University of Toronto has unveiled a critical vulnerability: the GPUHammer attack, a novel variant of the RowHammer exploit, capable of silently corrupting AI models by…

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Hardware Security, News

How to Design an Efficient Barrel Shifter in Verilog: Step-by-Step Guide

Posted on By vlsifacts No Comments on How to Design an Efficient Barrel Shifter in Verilog: Step-by-Step Guide

In digital design, shifting bits efficiently is crucial for many applications like arithmetic operations, data manipulation, and processor instruction execution. A barrel shifter is a hardware component that shifts data by a variable number of bits in a single clock cycle, making it a vital building block in modern digital systems. If you’re diving into Verilog and…

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Digital Electronics, Verilog