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.
Aluminum PCB: Thermal Design and Materials
An aluminum PCB is a printed circuit board that combines copper circuitry, an electrically insulating thermal dielectric and an aluminum base. The dielectric carries heat toward the metal while separating the circuit electrically. This construction is useful for LED lighting and power electronics when the board, mounting interface and cooling surface form a suitable heat…
HDI PCB: Stackup, Microvias and Design
An HDI PCB, or high-density interconnect printed circuit board, uses fine conductors and compact interlayer connections to fit more wiring into a given area. Laser-drilled microvias and thin buildup layers help connect dense component pads without using a full-thickness hole at every connection. The design question is whether those features solve a routing constraint worth…
Flex PCB Bend Radius: How to Calculate and Specify It
You have a stackup, a housing envelope, and a mechanical engineer asking for a flex PCB bend radius. The answer is not a lookup table; it is a strain calculation, and the multipliers in the tables are what that calculation returns once you fix a stackup. Every published multiplier, whether it reads 6×, 10×, 12×,…
10 Best PCB Design Software in 2026
KiCad is the strongest free desktop starting point for engineers choosing PCB design software in 2026. Altium Designer through Altium Develop is a strong paid choice for small teams that want shared libraries, browser review, and electrical–mechanical collaboration in one connected workflow. Both support serious board design; the purchasing decision is whether the surrounding workflow…
SMD Resistor Guide: Codes, Sizes, Footprints and Limits
An SMD resistor is a fixed-value resistor in a leadless rectangular package that solders to pads on the surface of a printed circuit board rather than passing through holes. It is typically the most numerous component on a board, and the one most often specified from habit rather than from the datasheet. Most guides to…
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 Design: Stackup, Specifications and Testing
Controlled impedance is the practice of designing and manufacturing PCB traces so their characteristic impedance meets a specified target and tolerance. The result depends on the conductor geometry, dielectric construction, and reference planes. A complete requirement also states how the manufacturer will verify the finished structure. A note that says only “50 ohms” leaves important…
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 Design: Layout, Materials and Manufacturing
A PCB antenna is a copper trace or pattern etched directly onto a printed circuit board that transmits and receives radio frequency electromagnetic waves. It is the cheapest way to give a product wireless connectivity, because it adds no connector, no cable and no bill-of-materials line. It is also the part of a design most…
FR-4 Material Properties for PCB Laminate Selection
The FR-4 material properties that matter most depend on what your PCB must withstand: electrical signals, assembly heat, operating temperatures, voltage stress, moisture, and mechanical loading. Start with dielectric constant and loss, thermal expansion and stability, insulation performance, and mechanical requirements. FR-4 is a flame-retardant, glass-reinforced epoxy material class. It does not identify one fixed…
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…
