1. Purpose Standardize the PCB pad design process for products, specifying the relevant parameters of the PCB pad design process, ensuring that the PCB design meets the technical specifications for manufacturability, testability, safety regulations, EMC, EMI, etc., and building the process, technology, quality, and cost advantages of the product during the design process. 2. Scope … Read more
Previously, I wrote an article on my blog titled “Why Convert PCB Files to GERBER Files and Drill Data for PCB Manufacturers”. That article simply explained why this is necessary. In this article, I will discuss how to convert PCB design files into the corresponding Gerber files and some common pitfalls to avoid. Many engineers … Read more
After designing the PCB, we send it to the PCB manufacturer for prototyping or mass production. When placing an order with the manufacturer, we include a PCB processing technology specification document, which specifies the type of PCB surface treatment process to be used. Different PCB surface treatment processes can significantly affect the final PCB processing … Read more
Today, someone sent a picture to Lao Wu, asking about the several white translucent substances on the fixed seat of the PCB shown in the image. He didn’t know what they were or why they appeared on the PCB. I looked at the picture and thought it should be hot melt adhesive used for fixing … Read more
Previously, we discussed various aspects of crosstalk, including its sources, formation, types, simulation, and testing methods. We also introduced some methods to reduce crosstalk, one of which is to protect important signal networks with ground networks. This additional ground network is commonly referred to as a guard trace, as shown in the figure below: Can … Read more
The PCB industry chain is structured as follows: Upstream Raw Materials — Midstream Substrates — Downstream PCB Applications Upstream Raw Materials Upstream raw materials include copper foil, resin, fiberglass cloth, wood pulp, ink, and copper balls, among which copper foil, resin, and fiberglass cloth are the three main raw materials. Copper foil is the primary … Read more
Capacitors play a crucial role in high-speed PCB design and are typically the most used components on a PCB. In PCBs, capacitors are generally categorized into filtering capacitors, decoupling capacitors, and energy storage capacitors. 1. Power Output Capacitors, Filtering Capacitors The capacitors in the input and output circuits of the power module are commonly referred … Read more
Hezong Air8101——As an industrial engine that supports WiFi, Bluetooth, and can be expanded to support 4G and Ethernet, it supports 720P video recording, 2 million pixel photography, audio recording and playback, and also supports convenient and efficientLuatOS software development. The existing development board kits are relatively complex to assemble with multiple accessories. To make it … Read more
The T710 uses the Zhanrui 4G UDS710 chip, which is a powerful module with rich interfaces in the WiFi version. It is a highly integrated embedded application processor that includes a quad-core ARM Cortex-A75 00P core and a quad-core ARM Cortex-A55MP as the application processor. It runs on the Android 10.0 system, supports 2.4G and … Read more
