Knowledge Center

1. Introduction: The Significance of Trace Corner Design PCB trace corners are transitional structures where conductors change direction. Despite the seemingly minor angle difference (45-degree vs. right angle), they directly impact a PCB’s electrica...

After PCB Assembly (PCBA) is completed, it must undergo Functional Testing (FVT) to verify that it operates entirely according to design specifications. This is not just a check for successful soldering but a comprehensive physical examination of the entir...

1. ESD Hazards and Core Objectives of Anti-Static Design Electrostatic Discharge (ESD) is a hidden threat in PCB design. When an electrostatically charged object (such as a human body or tool) contacts a PCB, it can generate instantaneous high voltages (e...

1. Introduction: Core Connection Between Reflow Oven Maintenance and Soldering Quality The reflow oven is the core equipment for SMT soldering, and its working status directly determines the melting, wetting, and solidification processes of solder. The es...

1 Overview of Solder Mask Hardness Testing In the manufacturing and reliability assessment of Printed Circuit Boards (PCBs), the mechanical properties of the Solder Mask are crucial. This layer not only protects the copper traces from oxidation and preven...

1. Basic Understanding: Definition and Core Impact of Prepreg Resin Flow In the conventional lamination process of PCBs, prepreg (abbreviated as PP) is an intermediate dielectric material made by impregnating glass fiber cloth with epoxy resin and dry...

In the electronics manufacturing industry, ensuring the reliability of through-hole component (THT) soldering is paramount. Solder joints must not only make electrical connections but also withstand mechanical stress, vibration, and thermal cycling. The Pu...

1. Basic Understanding of Bridge Defects Bridge defect between two pins refers to a fault where solder accidentally connects adjacent pins (e.g., the two pins of a through-hole resistor or adjacent pins of a surface-mount IC) during soldering, resulting in...

1. Core Concepts: Basic Definitions of Pin Pitch and Trace Width In PCB design, Pin Pitch refers to the distance between the centers of two adjacent pins of a connector (unit: mm or mil, 1mm ≈ 39.37mil), which is the core prerequisite for determinin...

I. Core Logic for Scenario Division of SMT Missing Component Inspection The differences in core requirements for SMT (Surface Mount Technology) missing component inspection mainly stem from five dimensions: production batch, component precision, cost bud...