| Project Background

Printed circuit boards (PCBs) are the physical carriers and nerve centers of modern electronic devices, responsible for achieving electrical interconnection, mechanical support, and signal transmission between electronic components. The conductor layer (usually copper foil) is the core of a PCB for realizing its electrical functions. Current, signals, and power are all transmitted through these copper conductors. The quality of copper foil, especially its purity, is one of the fundamental factors determining the final performance, reliability, and lifespan of a PCB.

| Project Overview

Through constant-current electrolysis, the main copper ions in a copper alloy sample are deposited at the cathode, while the impurity elements remain in the electrolyte. Finally, the copper content is calculated by combining the gravimetric method and the spectral method.

| Test Objective

1. Meeting industry standard requirements and verify compliance;

2. Research and innovation;

3. Failure analysis and root cause tracing.

| Testing Standards

IPC TM-650 2.3.15D Purity of copper foil or electroplating

GB/T 5121.1 Methods for chemical analysis of copper and copper alloys - Part 1: Determination of copper content

| Service Products / Fields

Consumer electronics, automotive electronics, electronic manufacturing, PCB design and materials science, aerospace, communications, new-energy electronics, etc.

| MTT Advantages

1. Professional Team: A team of highly experienced testing engineers and technical experts.

2. Advanced Equipment: Equipped with internationally leading testing instruments to ensure accuracy and reliability of results.

3. Efficient Service: Rapidly respond to customer needs and provide one-stop, high-efficiency inspection services.

4. Authoritative Certification: The laboratory is certified by ISO/IEC 17025, ensuring that test reports have international credibility.