Why Semiconductors Matter
Meet the Four Pillars
Learn Each Pillar
See How They Connect
Understand the foundational role of chips in everyday life and global technology.
Discover our framework that organizes the complex semiconductor supply chain.
Dive into the specifics of Toolmakers, Architects, Foundries, and Workhorses.
Explore the interdependencies and ripple effects across the chip ecosystem.
Understand the semiconductor sector through a clear, practical framework. The Four Pillars help organize the connected companies, technologies, and supply-chain relationships that shape the chip ecosystem.The Four Pillars of Semiconductors
Understanding Supply Chain Interdependencies
Semiconductors are not one simple business. They are a connected chain of companies, technologies, and processes that depend on one another. This video explains the foundational relationships.
Meet the Four Pillars
The semiconductor sector can look confusing. Our framework simplifies this by grouping companies according to their role in the chip ecosystem.
Toolmakers
Architects
Foundries
Workhorses
Companies that make the equipment used to produce chips.
Companies that design chips and the technology behind them.
Companies that manufacture chips at scale.
Companies that provide essential components and support the semiconductor supply chain.
Thank you for visiting LegacyPlc. We are glad you are here.
This training program is designed to help you build a clear, structured understanding of the semiconductor industry. In Lesson 1, you will be introduced to the semiconductor value chain and learn how it connects with the remaining three pillars of the LegacyPlc framework.
The lesson concludes with a short knowledge check. It is there to help you measure your understanding of the information you have studied so far.
Take your time. There is no reason to rush. Revisit a section or watch the introductory video again whenever it helps. The goal is not simply to finish a lesson—it is to understand the material and get real value from the training.
Before you begin, make sure you have watched the short video at the top of this page. It will help set the stage for Lesson 1.
We would also appreciate your feedback. If anything about the website, training material, navigation, or your overall experience could be improved, please email me directly at dana@legacyplc.net. Your comments will help make LegacyPlc more useful for future students.
When you are ready, click Start Lesson 1.
Thank you again for visiting LegacyPlc, and welcome to your Semiconductor Intelligence training.
Dana