Key Takeaway SMD (Surface Mount Device) is the component; SMT (Surface Mount Technology) is the assembly process. Common passive chip sizes: 01005, 0201, 0402, 0603, 0805, 1206 — metric or imperial (EIA) codes. IC package families: SOT (discretes), SOIC/TSSOP (small…
Takeaway Size the PCB thermal land 1:1 with the package EPAD (or +0.1–0.2 mm per side maximum). Use 9–25 thermal vias at Ø0.3–0.33 mm with solid copper fill — no thermal relief spokes. Design stencil apertures to cover 50–75 % of EPAD area…
Key points summary PCB schematic symbols are standardized graphic representations conforming to ANSI/IEEE 315, IEC 60617 and IPC-2612-1 standards—this common language enables engineers around the world to read and build the same circuits. Five different grounding symbols (GND, AGND, PGND,…
Backplane PCBs are commonly used in servers, data centers, telecom equipment, industrial control systems, medical equipment, aerospace electronics, and defense systems. Standards such as VMEbus, CompactPCI, ATCA (Advanced Telecom Computing Architecture), and VITA/VPX define the mechanical and electrical specifications that…
What Is Quick-Turn PCB Fabrication? Quick-turn PCB fabrication refers to the accelerated manufacturing of printed circuit boards with lead times ranging from 24 hours to 7 business days, compared to the 2–3 week timelines typical of standard production runs. This…
Choosing the wrong electrical engineering software can cost your team weeks of rework — and sometimes an entire PCB spin. Whether you’re a startup engineer evaluating KiCad for the first time, a PCB designer deciding between Altium Designer and Cadence…
What You Need to Know PCB board viewers (Gerber viewers) let engineers and manufacturers visually inspect fabrication files before production, catching costly errors early. Modern tools support Gerber RS-274X/X2, ODB++, IPC-2581, and Excellon drill formats — the core standards used…
Key Takeaways PCB schematic design (schematic capture) is the process of creating a logical circuit diagram using standardized symbols before any physical layout begins. Schematics are governed by IEC 60617 and IEEE 315 / ASME Y14.44; design methodology follows IPC-2221;…
Off-the-shelf USB hubs never have quite the right port count, power budget, or form factor for embedded designs — and they break at the worst possible times. Building a custom USB hub PCB gives you full control over power delivery,…
This guide covers the full diagnostic workflow, the most common PCB faults and how to identify them, step-by-step repair techniques for each fault type, and the practical limits of board repair so you know when to escalate to full board…
