Definition: Voids in solder joint, refers to holes, bubbles, gaps, open pockets, empty spaces, inside of the solder joint. Solder void is typically generated by entrapped gasses/vapour or paste flux residues, that were not able to emit/release from solder joint during the reflow process.   What factors might cause solder voiding: ● Solder Paste ● Stencil ● PCB Surface Finish ●...

Impedance, commonly represented by symbol Z, measured in ohms (Ω), influence a circuit's opposition to the current flow. It consists by two parts: resistance and reactance, expressed by the formula Z=R+jX. Here, R is the resistance, which always impedes the current flow; X is the reactance, caused by inductance (inductive reactance) and capacitance (capacitive reactance), and it...

    Pad lifting on a PCB is a serious manufacturing defect, manifesting as the copper foil pads separating or peeling off from the substrate (FR-4, etc.) after soldering.   The causes of pad lifting and peeling generally from four categories: poor PCB quality, soldering process misconduct, design defects, and improper operation.   Poor PCB...

In today’s connected world, a television is no longer just a display—it’s a smart ecosystem at the heart of modern living. The Metz MNE9000 4K Mini LED TV redefines what a premium entertainment experience can be by combining next-generation Mini LED visuals with advanced smart capabilities powered by Google TV, voice control, and a comprehensive suite...

Introduction: Why Substrate Material Matters in Ceramic PCBs As electronic systems continue to push the limits of power density, miniaturization, and thermal performance, the choice of substrate material has become one of the most crucial factors in PCB design. For applications that must operate in extreme environments—whether in aerospace, EV power modules, or medical...

In today’s world, television is more than just a screen—it’s part of daily life. Whether you’re streaming your favourite series, engaging in remote work, helping children with online classes or simply relaxing after a long day, how the screen affects your eyes matters. The 40-inch version of the Metz MQF7000 2K QLED TV offers more than just strong...

In the competitive world of modern television technology, not every viewer needs a massive 75-inch 4K display or a home theater setup that costs thousands. Sometimes, the smartest choice lies in balance—a TV that blends high-quality visuals, immersive sound, and smart functionality at an affordable price. That’s exactly what the Metz MQF7000 2K QLED TV 40 Inch achieves....

Introduction: The Thermal Challenge in LED Lighting As the world shifts toward energy-efficient lighting, LED (Light Emitting Diode) systems have become the dominant technology in residential, industrial, and automotive applications. However, while LEDs consume less energy, they produce significant heat during operation. Poor heat dissipation can lead to reduced brightness, color shift,...

When shopping for a new TV, it’s easy to get lost in technical jargon—resolution numbers, HDR standards, color gamuts. But the Metz MQF7000 2K QLED TV goes beyond being just a screen in your living room. Designed under the idea of “4K Look, 2K Price”, it combines Quantum Dot visuals, Dolby-enhanced sound, Google TV smart features, and eye-care...

When most people think of QLED technology, they immediately associate it with premium 4K or even 8K models. But Metz, a well-established brand in European television manufacturing, has introduced a fresh perspective with the MQF7000 2K QLED TV. Marketed under the motto “4K Look, 2K Price”, this TV aims to combine the dazzling benefits of QLED with a more accessible...