PCB Knowledge

Introduction In the rapidly evolving PCB industry, the term signal integrity has become critically important. Data rates have surged. High-speed and high-frequency applications are now considered the new normal. Engineers must maintain clean and reliable signa

Introduction to PCB Vias in Modern Electronics In the realm of modern electronics, the technological evolution of printed circuit boards is closely related to the efficiency of electrical connections between layers. PCB vias provide the technical foundation th

What is a Single Layer PCB?   One type of board that LHD TECH often makes is called  single-sided PCB or a one layer PCB board, also known as Single layer PCB. It is the most basic type of printed circuit board with a very simple structure – just an

Introduction to 2 Layer PCBs LHD TECH specializes in 2-layer PCBs, also known as double-sided PCB or two-layer PCB, which feature conductive copper on both the top and bottom layers. This printed circuit board design supports more advanced circuitry than singl

Introduction: The Importance of Surface Finish for Your PCB The surface finish process is a critical link in electronics manufacturing. The surface finish directly impacts solder joint reliability, long-term storage stability, resistance to environmental corro

Introduction to HASL in PCB Manufacturing The manufacturing process of a printed circuit board involves the coordination and connection of multiple precision steps. At the end of this process, a protective surface coating needs to be applied to the board. Amon

Introduction—Why PCB Manufacturing Time Matters   Printed circuit boards are the functional foundation of modern electronic products. From industrial control systems and smartphones to IoT devices, innovation across various electronic products is built up

Introduction: The Evolution of Circuit Boards and High-Performance Materials   Printed circuit board technology has profoundly shaped the form of modern electronic devices, with its applications spanning multiple fields such as smartphones, radar systems

Introduction The continuous evolution of electronic devices has driven the ever-growing demand for higher data transmission speeds, superior signal integrity and enhanced system reliability. Devices operating in high-frequency environments include 5G base stat

Introduction Printed Circuit Boards (PCBs) form the core foundation of the modern electronics industry. This technology underpins a vast range of electronic devices, spanning from mobile phones to complex aerospace communication systems. The selection of PCB m

Introduction: The Importance of PCB Design Rules   In the development of printed circuit boards that integrate high reliability, excellent manufacturability and superior performance, the establishment and implementation of PCB design rules form the core f

Introduction to PCB Ground Planes In high-quality printed circuit boards (PCBs), the ground plane plays a central role. It establishes the foundation of electrical connectivity for all components, provides a unified potential reference for the entire system, a

Why PCB Design Software Matters   PCB design software occupies a core position in the modern electronics field. Traditional approaches relying on manual drawing and manual component placement layout have been completely phased out. Modern software provide

Introduction to PCB Routing   PCB routing refers to the process of planning conductive paths on a printed circuit board (PCB). These paths, also known as traces, are responsible for connecting various electronic components and ensuring the stable operatio

Introduction to Printed Circuit Boards Printed Circuit Board (PCB) is the core supporting platform required for the normal operation of various electronic devices at present. When people use common electronic devices such as smartphones, laptops, remote contro

Introduction: Overview of Multilayer Rigid-Flex PCB Technology The manufacturing process of multilayer rigid-flex PCBs is propelling a transformation in the production methods of electronic products. This process integrates the high-performance characteristics

Introduction Over the past 10 years, LHD TECH has witnessed a revolution in the electronics industry – the application of flexible PCBS (also known as flexible printed circuit boards) has experienced explosive growth. Unlike the control drive of traditio

Zero PCB vs. Bare PCB: Choosing a Circuit Board Introduction Prototyping serves as the foundation for all electronic innovation. It is essential for school projects that design simple circuits, for startups refining smart sensors and for hobbyists experimentin

Introduction: The Strategic Value of Bare Board Testing Every circuit board starts as a bare board—a foundation that defines whether your electronic product will succeed or fail. A bare pcb (before any components are placed) is the truest test of your manufact

Introduction: Pads in PCB and Their Role in PCB Design Pads form the physical foundation for the electrical connection of every component on a PCB. Whether designing a simple single-sided board or a high-density interconnect board, the quality of design is ref

Introduction: Everything About Gerber Files in PCB Manufacturing   In the field of electronic design, Gerber files serve as the core component of the printed circuit board (PCB) industry, governing the entire workflow from design to production. All PCB de

Introduction to Polyimide PCBs   Amid the waves of lightweighting, thinning, flexibility and high reliability in the electronics PCB industry, LHDT TECH has always been at the forefront of innovation, leading the evolution of printed circuit boards (PCBs)

Introduction   When talking about bare PCBs—the foundation of every electronics assembly—we’re referring to boards that have completed manufacturing steps but haven’t yet had electronic components mounted onto the board. The bare board provides all electr

Introduction — Why PCB Design Matters for Beginners   As the backbone of modern electronics, printed circuit boards achieve the integration and miniaturization of complex circuits through precise wiring. The quality of their design and manufacturing direc

Introduction   At LHD TECH, we’re in the heart of today’s electronics manufacturing—a fast-moving world where the challenge never stops. We are continuously committed to achieving a dynamic balance among our three core goals: ensuring zero def

Introduction   The printed circuit board (PCB) serves as the physical substrate for all modern electronic circuits. Professionals in the manufacturing industry recognize that factors determining board performance extend beyond the quality of copper traces

Introduction to In-Circuit Test (ICT)   In-Circuit Testing (ICT) is a specialized inspection method applied in the manufacturing of printed circuit boards (PCBs). It employs systematic procedures to evaluate and verify the electrical integrity and functio

Introduction: Why PCB Etching Matters   PCB etching is a fundamental core process in the field of modern electronic manufacturing, and this procedure occupies a central position in the entire PCB production flow. The functionality of printed circuit board

What is PCB Drilling? Everything You Need to Know   PCB drilling refers to the manufacturing process of precisely machining holes in printed circuit boards. This procedure serves the core function of interconnecting the circuit layers of the board. Its ou

Introduction Printed circuit boards (PCBs) are core components of most modern electronic products. Smartphones, computers, medical devices and cutting-edge aerospace equipment rely on them to enable efficient circuit design, performance optimization and large-

Introduction to FR-4 Material and Its Importance   FR-4 material, while inconspicuous in the modern electronics sector, is indispensable. As a composite substrate material, it forms the foundational core of the vast majority of printed circuit boards (PCB

Introduction In the core architecture of modern electronic products, rigid printed circuit boards hold a dominant position. This type of circuit board represents the most widely used substrate type today. Smartphones incorporate rigid circuit boards internally

Introduction to Printed Circuit Boards   At LHD TECH, we recognize that the modern world is built on a foundation of electronic device. If you’ve ever used a smartphone, a computer, or any advanced device, you’ve directly experienced the innovation

Introduction   Alright, let’s talk about the unsung hero of the tech world: the pcb manufacturing process.   Have you ever wondered how your smart toaster at home is so “clever” that it can always bake bread just right every time? Or, how