PCB Design
Here, you can acquire professional knowledge covering the entire chain from PCB design to assembly, as well as precise analysis of the latest trends in the electronics industry.
What Are QFN Packages? A Practical Guide for PCB Design and Assembly
QFN packages appear in everything from power supplies and wireless modules to sensors, microcontrollers, and automotive electronics. Their small footprint, short electrical paths, and efficient heat transfer make them an attractive alternative to larger leaded packages. However, the same underside connections that save space also make QFN footprint design, soldering, and inspection less forgiving. So,…
Controlled Impedance PCB Guide: Design, Stackup & Testing
A high-speed interface can be routed neatly, pass a design-rule check, and still fail in the lab. The cause is often not the logical connection but the electrical path: the trace, dielectric, reference plane, vias, pads, and connectors do not present a consistent impedance to the signal. Controlled impedance PCB design prevents this problem by…
HDI PCB: Stackups, Microvia Design Rules, and What the Extra Cost Actually Buys
When a 0.4 mm ball-pitch BGA lands on your board layout, standard PCB routing hits a physical wall. Dogbone fanouts with conventional 0.2 mm (8 mil) mechanically drilled vias cannot physically route between the balls without violating clearance rules or severing reference planes. At that exact geometry, conventional through-hole PCB manufacturing stops being viable. You…
10k Resistor: Color Code, Uses, and How to Choose the Right One
A 10k resistor is a passive electrical component with a nominal resistance of 10,000 ohms (10kΩ). In modern circuit design, it is one of the most ubiquitous values found on breadboards and production PCBs alike. Engineers and hobbyists turn to 10k resistors because they hit an ideal electrical middle ground: they limit current to safe,…
PCB Antenna: Types, Design Guide & Performance Parameters
A PCB antenna is a conductive copper trace etched directly onto a printed circuit board that acts as the primary radiating element for wireless communication. By eliminating discrete connectors, coaxial cables, and external housings, integrated trace antennas provide a zero-BOM-cost RF solution for high-volume consumer, industrial, and IoT hardware. What Is a PCB Antenna and…
FR-4 Material Properties for PCB Design
FR-4 is the default laminate for many rigid printed circuit boards, but it is not a single fixed material. Its dielectric constant, thermal conductivity, Tg, CTE, CTI, and loss behavior depend on the laminate grade, resin system, glass weave, copper construction, supplier, and test method. For PCB engineers, the useful question is not whether FR-4…
PCB Thermal Hotspot Map: Simulation and Design Fixes
A PCB thermal hotspot map helps engineers find where heat concentrates before it becomes drift, derating, solder fatigue, or field failure. Instead of treating thermal review as a late-stage check, the map turns temperature into layout evidence: which packages, copper areas, vias, planes, and airflow routes carry the thermal load. For PCB engineers, the value…
PCB DFM Checklist
A PCB DFM checklist helps engineers and buyers catch manufacturability problems before a board is quoted, fabricated, assembled, or released to production. The goal is to confirm that the supplier can build the design with the required stackup, tolerances, finish, test plan, and documentation. DFM review reduces engineering holds and helps buyers compare suppliers. If…
PCB Via Guide: Types, Design Rules, and Selection Tips
A PCB via is a plated interconnect that lets signals, power, ground, or heat move between copper layers in a printed circuit board. Via choice affects routing density, fabrication cost, assembly yield, signal integrity, and thermal performance, so it should be part of stackup and DFM planning, not a cleanup step at the end. For…
Power PCB and Power Supply PCB Design Guide
A power PCB is the circuit board that receives, converts, regulates, distributes, or monitors electrical power. A power supply PCB is a more specific type of power PCB that converts an input source—such as AC mains, a battery, USB power, or a DC bus—into stable output voltage rails for an electronic product. The quality of…
FR4 PCB Guide: FR4 Material Properties, Uses, and Design Tips
FR-4 is the standard base material used for most printed circuit boards. It is a rigid composite made from woven glass cloth and epoxy resin, usually supplied as copper-clad laminate so copper circuits can be formed on one or both sides. An FR-4 PCB is therefore a circuit board built on an FR-4 substrate. It…
