What is Tombstoning? Tombstoning (also known as Manhattan effect or crocodile effect) usually affects surface mount passive components such as resistors, capacitor and inductors. It is where one end of the component lifts from a pad of the PCB during the soldering process. https://www.eurocircuits.com/content/uploads/2024/05/bw766_2.mp4 The final angle of the component will vary from a few […]
Read moreSolder Escape/Wick (also known as Solder Drainage) is where the Solder flows away from the SMD Pad towards a connected copper element, usually Via Hole. However, it may also be a copper pad or area that is not covered or isolated with Soldermask. If a Via Hole is too close or inside an SMD pad, […]
Read moreRead more
The Soldermask Issues page is under construction
Read moreThere are 2 main categories for components and mounting technology, Through Hole and Surface Mounted. Through Hole Technology (THT) is the original assembly process that dominated the industry until the invention of Surface Mount Technology (SMT) in the mid 80’s. One of the soldering techniques for THT is the use of Selective Wave Soldering. Selective […]
Read morePCB connectors are typically located on the edge of a board to avoid physical contact of cables and wires with other components and to minimize trace lengths by having signal input/output (I/O) ports close to the components that use them. Although it can be advantageous for the signal quality to place PCB connectors on or […]
Read moreThe Pick & Place machine and the Solder Paste Printer use fiducial targets to locate the panel and determine the orientation. For this, there must be at least 3 fiducials on the panel frame. If there are multiple boards on one panel, each individual PCB should include its own local fiducials to allow even better […]
Read moreBGA (Ball Grid Array) components are mostly used for microprocessors or flash memories. They provide more connection pins than other SMD components. There are solder balls at the bottom of the device. These solder balls melt during soldering and make the connection between the PCB and component. LGA (Land Grid Array) parts are similar to […]
Read moreRead more
Orientation of Surface Mount Components It is very important to get exact information about the orientation of symmetrical components, This is why it is recommended to indicate the first pin of the component on the legend layer. Accepted marking could be a dot, a line or a ‘1’ symbol in accordance with the datasheet of […]
Read more