3D printed solder stencil on PCB, after applying solder paste. [Jan] says that the printed stencil had a few defects but it otherwise worked fine for 0.5 mm pitch ICs and 0402 resistors ...

Then you do an inspection for defects, program any microcontrollers ... Let’s investigate our tools of the trade: solder paste dispensing. The general theory is that you want to take a tub ...

A reflow profile with a high ramp-up rate or a too-rapid temperature increase can lead to solder splattering and formation of solder balls. If the temperature increases too quickly, the flux may not ...

Eunil H.A. Americas has added the PARMI SPI HS30 in-line solder paste inspection system to its product line. The SPI HS30 uses a 3D laser triangulation sensor and intelligent vision algorithm to ...

This is the third major part ofminimizing defects and involves using effective SPI systems operated byhighly trained technicians. In short, SPI uses laser technologyto detect the amount of solder ...

Few manufacturers will find it economical to use all four inspection stations, though. Post paste printing. To a large extent, solder defects originate from faulty paste printing. After applying ...