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
The main purpose of PCB Surface Finish is to protect the underlying copper layer from oxidation to ensure good soldering and electrical conductivity, and to continuously protect the solder joints from further oxidation after soldering. Below is a brief introduction to the advantages and disadvantages of common PCB surface treatment processes. 1. Bare Copper Board … Read more
MAKER: ThomasVDD / Translated by: Fun Without End Cherry Soldering tiny SMD components can be quite challenging, but this process can also be automated. It can be completed by applying solder paste and baking it in a (reflow) oven or hot plate (just like a cooking plate in the kitchen). I have seen many DIY … Read more