When looking at a circuit board, especially as a beginner in the electronics industry, I always wondered why the top layer of PCBs was green. The answer varies depending on who you ask, but one thing everyone agrees on is this: your solder mask aids inspection, provides protection for condu...
Solder preforms in electronic packaging: selecting the correct solder preform helps assemblers avoid the difficult task of dispensing paste in through holes.(Materials - printed circuit boards)How many times have you looked at a mixed technology assembly job and wished you could eliminate the wave ...
However, for exposed-pad packages like the QFNs/QFPs, the paste mask should be segmented into a symmetric pad array if the exposed pad is a square above 4 x 4 mm. This design recommendation enables the component to settle to the pad better, rather than floating on top of the solder ...
The board worked well for these experiments. In addition, the line widths and spacings of the boards were found to work well with stencil printed solder pastes. As many of the researchers of that time were involved in both the MIL-F-14256 and J-STD-004 committees, the inexpensive B-24 ...
·Slightly wash the circuit board once again with double distilled water or absolute alcohol (with the side where the component is soldered facing upwards, slanting the circuit board, use a clean oil paint brush No. 10~12 to call it with absolute alcohol from top to bottom For cleaning). ...
occurs in this capacitor is caused by an increase in leakage current or short‑circuiting. It is therefore important to make suffi cient allow‑ ances for redundant wiring in the circuit design....
A DC-DC boost converter operates based on the principles of the Inductor that provides the 'boost' for the circuit. Here is a simplified circuit of a boost converter: In the circuit above, the boost chip contains a MOSFET, which...
The article explains the anatomy of the correct thermal profile of BGA-laden printed circuit boards (PCB) and offers guidelines for optimum temperature settings relating to a particular solder paste. It outlines the steps for ...
The article explains the anatomy of the correct thermal profile of BGA-laden printed circuit boards (PCB) and offers guidelines for optimum temperature settings relating to a particular solder paste. It outlines the steps for setting up temperatures of a double-sided, ball grid array (BGA)-...
Throughout the production cycle, printed circuit boards are transported by a series of machines that perform specific manufacturing operations, such as applying solder paste or assembling components. During these processes, the PCB is exposed to too much stress, which can cause damage. This can resu...