1. Engineering Overview — Material-Driven Signal Reliability for 5G Smartphones As 5G smartphones evolve toward multi-antenna, wide-band, and ultra-compact RF front-end architectures, PCB materials play a decisive role in ensuring signal alignment and thermal stability. The TLY-5 PCB, a PTFE-glass composite laminate from Taconic, provides excellent dielectric uniformity (Dk = 2.2 ± 0.02, Df...
RF Test PCB: Engineering Precision for High-Frequency Testing Applications Introduction As wireless communication, semiconductor devices, and high-frequency electronics continue to advance, the demand for precise and reliable test platforms has increased dramatically. Among these platforms, the RF Test PCB plays a central role. It enables engineers to validate RF performance, measure high-frequency characteristics, and ensure...
Introduction to Aluminum Oxide (Al₂O₃) Ceramic PCBs In the field of printed circuit board (PCB) manufacturing, the choice of substrate material plays an essential role in determining the product’s performance, reliability, and heat dissipation capability. Ceramic PCBs—particularly those using Aluminum Oxide (Al₂O₃)—have become increasingly popular due to their outstanding thermal and electrical properties. This article...
Probe Card PCB: Engineering Precision for Wafer-Level Testing Introduction At the wafer-level test stage, the probe card PCB serves as the indispensable interface between automated test equipment (ATE) and the semiconductor wafer. As device geometries continue shrinking and electrical performance requirements become more demanding, precision test interfaces have become essential. The probe card PCB establishes...
ADAS PCB Layout Guidelines for Automotive Radar Systems In the rapidly advancing world of automotive technology, Advanced Driver Assistance Systems (ADAS) are revolutionizing how we drive, enhancing safety and intelligence in vehicles. At the heart of many ADAS features lies the automotive radar system, which relies on precise and effective printed circuit board (PCB) design...
1. Introduction In advanced RF and microwave test systems, where signal accuracy defines measurement integrity, the substrate material directly determines consistency. The RF-35 PCB—a low-loss laminate with optimized dielectric uniformity—has become a preferred platform for network analyzers, calibration modules, and power sensors operating between 20 GHz to 50 GHz. KKPCB’s engineering framework addresses key...
Flux is the “unsung hero” in the PCBA (Printed Circuit Board Assembly) process, directly affecting solder joint quality, production efficiency, and product reliability. Understanding flux application methods, process characteristics, and key precautions is essential for any electronics manufacturer. This guide explores these aspects to help engineers optimize flux application in PCBA. I. Four Mainstream Flux...
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...
What Is a PCV Valve? The acronym PCV stands for Positive Crankcase Ventilation. The PCV valve is a one-way valve that forms part of your vehicle’s PCV system — an integral component in the management of gases produced during engine operation. In simple terms, the PCV valve is responsible for ventilating the crankcase, a part...
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...
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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