Although PCB manufacturing online has become very quick and cheap, with some manufacturers even offering free test board production, compared to making a test circuit board in “one minute“, sending out for board production still takes too long. For circuits that need testing, quick prototyping allows for rapid iteration to complete experimental circuits. The final … Read more
Today, we will discuss the key points to consider when designing a PCB from a soldering perspective. 1. Factors Affecting PCB Soldering Quality From PCB design to the completion of soldering all components, achieving a high-quality circuit board requires the control of various aspects including PCB engineers, soldering processes, and soldering workers. The main influencing … Read more
In the design and manufacturing process of PCB boards, engineers need to not only prevent unexpected issues during manufacturing but also avoid design errors. This article summarizes and analyzes these common PCB problems, hoping to provide some assistance for your design and production work. Problem 1: PCB Short Circuit This issue is one of the … Read more
How can one learn microcontrollers effectively? This article shares six key experiences from senior engineer Liu Ping, hoping to resonate with everyone. 1. Correct Understanding of Microcontrollers Understanding microcontroller technology correctly is essential; it’s not unattainable, nor can it be mastered in just ten days. If this technology were so difficult and profound, how could … Read more
PCB Network News Sharing an interesting piece of information: using wire to create a “circuit board”. I hope it inspires colleagues in the industry. What is Freeduino? It is an Arduino UNO board without any circuit board. It interconnects components using a technique called freeform, utilizing wires or copper instead of a circuit board. It … Read more
Background:Some customers have reported that certain Hisense motherboards using H26M62002JPR, H26M51002KPR eMMC chips prompt a timeout error during reading, preventing read/write operations. The analysis indicates that the issue is due to non-standard eMMC. Hardware Support:This version is compatible with previous ones; simply transfer the socket head and 25 chips to the new PCB. Software Support:Versions … Read more
RT809H Programmer Tutorial: EMMC Offline Writing Method Apply a bit of soldering flux on one side of the EMMC, use a hot air gun to heat evenly, and remove the EMMC chip. Let the removed EMMC chip cool aside, and observe the chip pins for any solder balls. If necessary, add solder or solder balls. … Read more
Received an iPhone 6 from a user, reporting a fault of not powering on. Upon disassembly and power testing, it showed a high current draw, and the phone could display the white Apple logo. Since there was a high current, some area would heat up. After disassembling and inspecting the motherboard, it was found that … Read more
In the fourth grade, Lele won second place in the microcontroller competition in Haidian District Lele loves programming and robotics but the most favorite is still the production of hardware circuit boards Seeing the soldering iron not soldering a few boards that is absolutely not acceptable Lele most likes the combination soldering iron, solder, components, … Read more
To achieve high-density wiring, shorten signal transmission paths, and enhance signal integrity, the via in pad is introduced. However, the design of vias in pads presents challenges for soldering. Since the vias are located within the pads, some solder may flow into the vias during the soldering process, leading to insufficient solder on the pads, … Read more