How are PCBs assembled? | Sierra Circuits

In this video, we take you inside our modern PCB assembly line and walk through every step of the SMT and through-hole assembly process. Learn how solder paste is applied, how high-speed pick-and-place machines accurately place thousands of components, and how reflow soldering creates reliable electrical and mechanical connections. We also cover the critical inspection and testing processes used to ensure quality, including SPI, AOI, X-ray inspection, flying probe testing, and in-circuit testing. Topics covered: • Component sourcing and preparation • Stencil fabrication and solder paste printing • Solder Paste Inspection (SPI) • Pick-and-place assembly • First Article Inspection (FAI) • Reflow soldering • X-ray inspection for BGAs and QFNs • Automated Optical Inspection (AOI) • Flying Probe and In-Circuit Testing (ICT) • Wave soldering and selective soldering • PCB cleaning and depanelization • Final quality assurance inspection • PCB assembly design best practices Stock components with us: https://www.protoexpress.com/products... Download our DFA Handbook: https://www.protoexpress.com/pcb-desi... Browse our other ebooks: https://www.protoexpress.com/pcb-desi... Check out our PCB assembly services: https://www.protoexpress.com/products... ******************************************* THE PCB DESIGNER'S CORNER PCB forum SierraConnect: https://sierraconnect.protoexpress.co... Seminars and webinars: https://www.protoexpress.com/events/?... Design guides: https://www.protoexpress.com/pcb-desi... PCB design tools: https://www.protoexpress.com/tools/?u... Sierra Circuits products and services: https://www.protoexpress.com/products... Follow us on LinkedIn: Amit Bahl, the PCB Guy:   / amit-bahl-sierra-circuits   Sierra Circuits:   / sierra-circuits-inc   SierraConnect:   / sierraconnect