The three main characteristics of Rigid-Flex PCB are Multi-bending, Multi-stackup, and Multi-zone. In the previous article, we discussed multi-bending designs. In this article, we will take a closer look at the multi-layered design of Rigid-Flex. 01、 Multi-Stackup Multi-layer stack Multi-stackup refers to a substrate where the number and thickness of layers differ in different regions, meaning the substrate needs to...
In the precision chain of modern electronics manufacturing, PCBA processing (Printed Circuit Board Assembly) serves as the critical stage that gives electronic products “life.” During this process, electronic components are precisely soldered onto a printed circuit board (PCB) to form a complete circuit system.However, PCB board deformation is a hidden issue that can severely affect...
Why Crystal Oscillator Layout Is Critical The crystal oscillator (XTAL) is the timing reference of most electronic systems, including: Microcontrollers (MCUs) Microprocessors (MPUs) Communication modules RF systems Even though it operates at relatively low frequencies compared to RF circuits, the oscillator is extremely sensitive to noise, parasitics, and PCB layout quality. Improper layout can result...
Why EMC Matters in PCB Design Electromagnetic Compatibility (EMC) is a key requirement in modern PCB design, ensuring that electronic systems operate reliably without generating or being affected by electromagnetic interference (EMI). Proper PCB layout—especially GND routing, trace spacing, and layer design—plays a decisive role in reducing ESD (Electrostatic Discharge) and improving overall signal integrity....
Why PCB Pad Soldering Process Matters In PCB manufacturing, the pad surface finish or soldering process directly affects component solderability, electrical performance, and long-term reliability.Different processes offer varying degrees of oxidation resistance, flatness, and cost efficiency, making proper selection essential for every PCB design project. This article categorizes and compares the most common PCB pad...
The Importance of Via Placement in PCB Design In PCB design, via positioning plays a crucial role in ensuring electrical performance, manufacturing reliability, and signal integrity. Improper via placement—especially placing vias directly on component pads—can lead to soldering defects, electrical noise, and higher production costs. This article explains why vias should be staggered from pad...
With the rapid development and widespread application of 5G technology, the field of wireless communication has ushered in unprecedented changes. In 5G networks, signal quality monitoring and evaluation are crucial for ensuring communication stability and reliability. Among them, Reference Signal Received Power (RSRP) and Reference Signal Received Quality (RSRQ) are two key performance indicators that play an...
Power supply noise is a common problem on high-frequency PCBs . This interference is usually caused by electromagnetic fields generated when current flows across the PCB. Electromagnetic fields are generated when current flows through power or ground lines on the PCB. If these fields interact with other components on the PCB, they can produce noise, thus affecting circuit performance....
1. What Is SMT Assembly? Surface Mount Technology (SMT) is one of the most widely used methods in modern PCB assembly. Unlike through-hole assembly, where component leads are inserted into drilled holes, SMT components are directly mounted onto the surface of a bare printed circuit board (PCB). This method simplifies the PCB manufacturing process, reduces...
With the rapid development of today’s electronics industry, electronic products are becoming smaller, lighter, and more complex. To meet this demand, engineers have adopted Surface Mount Technology (SMT) — an advanced PCB assembly method that allows components to be mounted directly onto the surface of the printed circuit board. If you’ve ever looked at the...
KKPCB is a leading electronic solutions provider specializing in PCB design, fabrication, assembly, and testing for Flex, Rigid-Flex, RF/Microwave, HDI, rigid multilayer, and ATE test boards. We offer comprehensive end-to-end services, including prototyping, component sourcing, SMT/THT assembly, functional testing, enclosure assembly, and final product packaging. With our one-stop, in-house capabilities, KKPCB delivers OEM and ODM solutions with fast turnaround, high quality, and cost-effective results, serving clients worldwide.
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