1. The source type and sink type generally refer to transistor-type circuits and can be directly understood as the IO circuitproviding/outputting current (source) orabsorbing/inputting current (sink). For DO, the PNP transistor output is generally a source type, where the output module is internally connected to the power supply, allowing current to flow out through DO … Read more
Here is the news related to humanoid robots as of September 3, 2025: • The performance of the robotics sector stocks is strong: As of the close on September 3, the stock price of Zhongjing Electronics has increased by over 50% this year, with a maximum increase of 182% within the year, and the latest … Read more
Did you know? The smartphones, computers, and even smart refrigerators we use today all contain a “magic box”—the semiconductor chip. This tiny component, no larger than a fingernail, powers the entire world. Today, let’s discuss how this “magic box” evolved from obscure research in laboratories to become the heart of global technology. 1. Vacuum Tubes: … Read more
Linyi Semiconductor Device FactoryThe Linyi Semiconductor Device Factory (originally named “Linyi Radio Component Research Institute”) was established in June 1966 and is a state-owned enterprise. By the end of 1989, the factory director was Li Donghan and the party secretary was Li Yueguo. The factory was successively under the jurisdiction of the Linyi Heavy Industry … Read more
Author丨Li Man Source丨Dongsi Shitiao Capital A decade of ups and downs for a Chinese chip company is once again ushering in a dazzling moment in capital. On the evening of July 11, 2025, Yang Chonghe, a scientist hailed as the “first returnee in IC design”, submitted an IPO application for Lanqi Technology to the Hong … Read more
Hello everyone, I am Yan Xiaobei, a science and engineering guy who understands a bit about economics.~ I am starting a new series to discuss some interesting stories in the chip field. In the first article, I talked about the origin of photolithography technology,the very first photolithography machine was actually modified from a microscope! The … Read more
7. Silicon Controlled RectifierSilicon controlled rectifiers are an essential component of circuit boards, which is why enthusiasts love to use them. They are also referred to as thyristors because they are very similar to diodes and transistors. They consist of four layers of silicon and have only three terminals; they are not used as amplifiers … Read more
Reading Good Books Together From a pile of sand to a precision chip, what processes are involved, and what technologies are required at each stage? 1. From Sand to Silicon Wafer. The term “semiconductor” refers to materials that have electrical conductivity between that of conductors and insulators. Conductors, such as iron, copper, and silver, can … Read more
Introduction In the first quarter of 2025, newly listed companies have become the focus of capital dynamics in the semiconductor industry.These new listings not only represent “fresh blood” for industry development but also reflect the trends of globalization, diverse growth paths, and capital-driven innovation in the semiconductor field. According to incomplete statistics from Charging Head … Read more
Source:Learning About Things Original Author:Long Road Ahead This article mainly discusses why epitaxial growth technology is the core process of semiconductor manufacturing. Epitaxial Growth Technology: The Core Process of Semiconductor Manufacturing As the feature sizes of semiconductor devices continue to shrink, the demand for high-quality thin film materials becomes increasingly urgent. Epitaxial technology, as a … Read more