What is surface analysis?

Surface analysis is a discipline that studiesMaterial surface structure, composition, chemical state, and physical propertiesthe science and technology, primarily focused on observing and understanding the characteristics of material surfaces, such as:morphology、roughness、化學組成 (composition)and the interaction between the surface and the external environment is crucial for ensuring product quality, identifying process defects, and understanding material behavior.

在實際製造過程中，從Early stage of research and development到Packaging test phaseoften encounter problems that are difficult to detect with the naked eye, such as:

• During the R&D stage, extremely small and thin nanoscale foreign objects may appear, requiring tracing back to their source process.

• In the later stage of packaging, oxidation or contamination may occur during the RDL and UBM processes, leading to electrical anomalies, high resistance, open circuits, short circuits, or leakage.

These "invisible defects" hidden at the microscopic level can be accurately identified and located through surface analysis tools.

Why is surface analysis important?

"Surface" is the first interface where all materials encounter the outside world. This film, only a few nanometers thick, often determines the overall electrical, optical, mechanical, and chemical behavior of the material. Through surface analysis:

• Identify process defectsAnalyze the sources of small foreign objects or oxide layers, and trace the defective process stages.

• Detection of Contamination and DeteriorationConfirm whether the metal layer and interface layer in the process are contaminated or aged.

• Optimize process parametersBy analyzing surface energy and chemical bonds, improve material adhesion and reactivity.

• Enhancing product reliabilityEnsure the stability of packaging and electrical contacts to avoid open circuits, short circuits, or leakage.

In today's world, where product lifespan and reliability requirements are becoming increasingly stringent, surface analysis has become an indispensable quality assurance element in all high-tech manufacturing processes.

Application of Surface Analysis in the Semiconductor Industry

In the semiconductor industry, process precision is measured in nanometers, and any extremely small surface anomaly can causeElectrical anomalies, yield decline, or reliability failure,Surface analysis can be applied to the following key scenarios:

• Nano-level foreign object analysisDetect particles or residual contamination that occur in processes such as CMP, PVD, CVD, RDL, UBM, etc.

• Oxide Layer and Interface AnalysisObserve the oxidation phenomenon between metal electrodes or films to avoid high contact resistance.

• packaging failure analysisDetecting abnormalities caused by solder joint cracking, short circuits, or electromigration.

• Material Development and Quality VerificationSupport research on the surface structure and reaction layers of new materials, accelerating the product development cycle.

By utilizing precise surface analysis technology, engineers can quickly identify process bottlenecks and establish a closed-loop quality management system from design to packaging, truly implementing "}]}Precise analysis, safeguarding quality"The core value of !"