PCB Test Points: Types, Design Guidelines & Best Practices

Verifying circuit functionality during development is critical for any electronic product. PCB test points serve as essential access nodes that allow engineers to inject signals and monitor board performance. At DYC Electronic, we integrate these verification features early in the PCBA prototyping phase to prevent costly failures later. This guide covers every technical aspect of implementation to help you […]
4N35 Optocoupler: Working Principle, Specs, Circuit Design & PCBA Sourcing Guide

The 4N35 optocoupler remains a cornerstone in electronic manufacturing even in 2025. Despite newer digital isolators entering the market, this classic 6-pin DIP part anchors isolation circuits in industrial controls, power supplies, and motor drives. For procurement teams and design engineers alike, understanding its internal structure, operating modes, and critical specifications ensures reliable production outcomes. […]
PCB Tombstoning: Causes, Prevention & SMT Assembly Solutions

Precision defines success in electronics manufacturing. Even minor process imbalances can trigger significant defects during production. PCB tombstoning remains one of the most frequent issues in surface mount technology (SMT). This defect occurs when a component lifts on one end during solder reflow and stands vertically on the board. Engineers often call this the tombstone effect in […]
PCB Manufacturing Process: A Comprehensive Guide to Understanding and Mastering the Techniques

Printed Circuit Boards (PCBs) provide the foundation for the assembly of electronic components and enable the functionality of a wide range of devices. This article journeys through the requisite steps in the PCB manufacturing process, detailing the procedures involved in each. Assembly of Circuit Boards Introduction Printed circuit boards (PCBs) serve as electronic devices’ mechanical […]