PCB Manufacturing, Design and Assembly Guides

Sn63Pb37 leaded solder melts at 183°C. SAC305 lead-free solder melts over 217–220°C. The temperature difference is clear. The assembly decision takes more work. At SLLPCB, we recommend choosing the solder alongside the PCB specification and component list. Those decisions belong

Solder paste inspection (SPI) checks the paste printed onto PCB pads before components are placed. A 3D SPI system measures deposit height, area, volume, and position against programmed targets and limits. For us, the purpose is straightforward: identify a bad

FR4 material is the most common choice among PCB materials. for rigid circuit boards. Its popularity comes from its relatively low cost, balanced electrical and mechanical properties, and established manufacturing processes. For many standard circuit boards, FR4 meets the design

Circuit card assembly (CCA) refers to a printed circuit board populated with interconnected electronic components. The bare PCB provides the wiring and mounting locations. Resistors, capacitors, ICs, connectors, and other parts turn it into a circuit that can control, compute,