On Circuit Boards Philosophical Insights —— Roaming Classroom —— On the production line, circuit boards are neatly arranged, waiting to be assembled, tested, and sent to the next process. Standing in the workshop, looking at these precise green boards, I suddenly feel that they bear some resemblance to life. The manufacturing of circuit boards requires … Read more
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——A Six-Step Journey from “Drawing” to “Physical Product”Step 1: Requirement Planning → Draw the “Design Sketch”· Goal: Clarify what the circuit board is intended to do (e.g., control a motor / transmit data).· Key Decisions:· Board size and shape (square / round / irregular)· How many layers of “sandwich” (single-layer board? double-layer board? multi-layer board?)· … Read more
In the SPI tolerance settings, different volume and area tolerances are established for various component types (such as R/C, IC, BGA, Chip, etc.), primarily based on the following core principles: 1. Component Structure and Soldering Characteristics ● R/C Components (Resistors/Capacitors): ○ Simple structure, small pad size, high precision requirement for solder volume. ○ Volume tolerance … Read more
Warm reminder: The article is about 3700 words long and will take about 10 minutes to read. You will definitely gain something after reading it. If you want to learn more professional and in-depth knowledge, you can join my Flat Panel Display Technology Learning Circle. The details link is as follows:Welcome to join the Flat … Read more
American Experts Are Upset: Chips Were Invented by Us, How Can China Be Better? Hello everyone, I am Lao Chen. Recently, I came across a rather amusing news story where an American expert was jumping up and down on a program, accusing Chinese companies by saying: “Chip technology was invented in the U.S., how can … Read more
With the rapid development of the PCB industry, PCBs are gradually moving towards high-precision fine lines, small apertures, and high aspect ratios (6:1-10:1). The copper requirement for holes is 20-25μm, and for boards with DF line spacing ≤ 4 mil, most PCB manufacturers face plating adhesion issues. Adhesion can cause direct short circuits, affecting the … Read more
Although both packaging substrates (IC packaging boards) and printed circuit boards (PCBs) serve connection and support functions in electronic devices, there are essential differences between the two in terms of definition, functional positioning, technical parameters, material processes, and application scenarios. 1. Core Definitions and Functional Positioning Differences 1.Packaging Substrate lDefinition: A special substrate that directly … Read more
Warm reminder: The article is about 3400 words long and will take about 10 minutes to read. You will definitely gain insights after reading it. If you want to learn more professional knowledge and industry information, you can join my knowledge community and grow continuously with me.When it comes to flexible printed circuit boards (FPCA), … Read more
1. Overview of FPC Flexible Printed Circuit Boards Printed circuit boards are fundamental products in the electronics industry, widely used in communication devices, computers, automotive electronics, industrial equipment, and various household appliances. Their main function is to support circuit components and interconnect circuit elements.FPC flexible printed circuit boards are a major category of printed circuit … Read more