Acoustic Microscopy Testing

Acoustic Microscopy (AM) testing is a high-resolution non-destructive inspection technique used to evaluate the internal structural integrity of electronic components and packages. By scanning materials with high-frequency ultrasonic waves, AM testing enables the detection of internal defects such as delamination, voids, cracks, and interface anomalies without damaging the devices.

AM testing is widely applied in component quality verification, package reliability evaluation, and counterfeit investigation, particularly in applications where internal structural consistency and package integrity are critical.

Principles and Value of Acoustic Microscopy Testing

Acoustic microscopy is based on the propagation, reflection, and attenuation characteristics of ultrasonic waves as they interact with different materials and interfaces. When high-frequency ultrasonic waves encounter internal discontinuities or interface abnormalities, distinct echo variations are generated.

By capturing and processing these echoes, the scanning acoustic microscope produces two-dimensional or three-dimensional images of internal structures, allowing detailed visualization and analysis of defect location, morphology, and distribution. Compared with conventional ultrasonic inspection methods, AM provides higher spatial resolution and superior imaging capability, making it well suited for multilayer packages and fine-structure components.

AM testing provides value in the following areas:

● Detection of internal delamination, voids, and interface defects

● Evaluation of package structural integrity and consistency

● Support for counterfeit investigation and abnormal structure identification

● Visual data support for package reliability and quality control

Acoustic Microscopy Testing Process

Test Preparation

● Clean test samples to ensure appropriate surface conditions for inspection

● Select suitable ultrasonic frequencies and scanning modes based on package type and material characteristics

Scanning and Imaging

● Use deionized water or other appropriate coupling media to ensure stable ultrasonic signal transmission

● Perform point-by-point scanning using a scanning acoustic microscope to collect internal echo signals

Data Processing and Analysis

● Process scan data using specialized software to generate acoustic images

● Identify and analyze abnormal internal regions and structural features

Evaluation and Documentation

● Evaluate inspection results to assess internal structural integrity

● Document findings and generate inspection records for quality verification or technical review

Acoustic Microscopy Equipment and Capabilities

Scanning Acoustic Microscope (SAM)

Utilizes high-frequency ultrasonic waves to perform high-resolution internal inspection of electronic components and packages without affecting device functionality.

The system is suitable for detecting delamination, voids, cracks, and interface anomalies, providing reliable data support for package reliability evaluation and quality control.

Laboratory Service Value

In our laboratory, acoustic microscopy testing is an essential part of the non-destructive inspection and package reliability validation framework. Through standardized inspection procedures and advanced acoustic microscopy equipment, we deliver clear, visual, and traceable internal structure evaluation results.

This service helps clients identify potential internal structural risks during incoming inspection, package validation, and reliability assessment stages, reducing the likelihood of failures caused by package defects. Our AM testing services are designed to provide well-documented, technically sound, and reliable inspection results, supporting the stable performance of electronic components in high-reliability applications.