Electronic Circuit
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.
Industrial PCB Production: Process & QA
Industrial PCB production turns an approved circuit-board design into bare boards and, when ordered, populated assemblies for industrial equipment. The route includes fabrication, component assembly, inspection and agreed testing. Approval depends on the specified build, operating conditions and acceptance criteria. A motor controller, sensor interface and cabinet-mounted control board can require different materials, mechanical support…
Reflow Soldering Guide: Process, Profile and Defects
Reflow soldering is the process that attaches surface-mount components to a printed circuit board by heating stencilled solder paste until it melts, wets the component terminations and forms the joint on cooling. It is the primary assembly method for almost every modern electronic product, and it is the step where the most expensive mistakes become…
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 Is GND? Meaning, Types, and PCB Grounding Explained
GND appears on almost every circuit diagram, PCB, power supply, and electronic module. It is often described as “zero volts” or “the negative terminal,” but neither description is universally correct. In electronics, GND stands for ground. It is the reference node against which other voltages are measured and, in many circuits, part of the path…
What Is a Through Hole? PCB Types, Uses, and Design Guide
A through hole is an opening that passes completely from one side of a printed circuit board (PCB) to the other. It may be plated with conductive copper to create an electrical connection, or left unplated for mechanical use. Through holes are commonly used for component leads, connectors, vias, mounting hardware, alignment pins, and slots.…
LED Anode and Cathode: How to Identify Positive and Negative Terminals
An LED (Light Emitting Diode) is a polarized semiconductor device that allows current to flow in only one direction. To illuminate an LED, you must connect its positive and negative terminals correctly within your circuit. On standard through-hole LEDs, the longer leg and the rounded side represent the anode, while the shorter leg and the…
0402 Resistors Guide: Size, Specs, and Selection
Hardware design always comes down to a battle for board space. As consumer wearables, IoT devices, and high-performance computing modules pack more features into smaller enclosures, printed circuit board (PCB) real estate has become an incredibly valuable commodity. Moving away from legacy through-hole parts and bulkier surface-mount devices (SMDs) is no longer optional—it is a…
IPC-TM-650 Explained: PCB Test Methods, Key Procedures, and Quality Uses
“Test to IPC” is not a complete PCB requirement. A supplier still needs the method, revision, samples, conditions, and acceptance criteria before it can quote or run the work. IPC-TM-650 is the procedure side of PCB testing. It helps engineers choose a way to measure a board characteristic. The governing specification, drawing, or contract still…
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 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…
SMT Meaning: Surface-Mount Technology Explained
SMT means Surface-Mount Technology: a method of attaching electronic components directly onto the surface of a printed circuit board (PCB). Rather than inserting long component leads through drilled holes, SMT uses small surface-mount components that are placed on solder-coated pads and permanently connected through controlled heating. In practical terms, SMT is what makes modern electronics…
Dual Inline Package Meaning: DIP Types, Uses, and Benefits
A dual inline package, usually abbreviated as DIP or DIL, is an electronic-component package with a rectangular body and two parallel rows of pins. Those pins pass through holes in a printed circuit board (PCB) or plug into a socket, creating a simple, durable, and easy-to-handle connection. The dual inline package meaning is therefore more…
