Semiconductor Material Reliability Testing Services

Semiconductor Material Reliability Testing (SMRT) constitutes a systematic suite of experimental protocols specifically designed to evaluate the stability, durability, and long-term performance consistency of semiconductor materials—including silicon (Si), gallium nitride (GaN), silicon carbide (SiC), dielectrics, metal interconnects, and packaging composites—under predefined stress conditions. These conditions are carefully calibrated to either simulate real-world operational environments that semiconductors encounter in end-use applications or accelerate degradation scenarios to shorten testing cycles without distorting failure mechanisms. At its core, SMRT is firmly anchored in fundamental semiconductor physics principles, with a key focus on quantifying how materials respond to common stressors such as extreme temperature fluctuations, high electric fields, humidity exposure, and mechanical strain. These stressors are known to induce microstructural changes, chemical reactions, or morphological defects over time, which can ultimately lead to gradual performance degradation or sudden catastrophic failure of semiconductor devices.

Unlike functional or performance testing, which primarily validates a material's immediate operational capability in standard conditions, SMRT prioritizes long-term reliability prediction. It achieves this by identifying latent defects—such as crystal dislocations, ion implantation anomalies, or interface delamination—that may not be detectable in initial tests but can emerge over extended service periods. Additionally, SMRT plays a crucial role in elucidating the underlying failure mechanisms that drive material degradation, providing actionable insights for improvement. For research applications, SMRT serves as an indispensable tool for advancing material development: it enables researchers to compare the reliability of novel material formulations, optimize fabrication processes for enhanced durability, and validate theoretical reliability models against real-world data. For instance, in the development of SiC power devices tailored for high-temperature industrial applications, SMRT protocols can accurately quantify the rate of thermal oxide degradation under elevated temperatures, delivering empirical data that refines material synthesis parameters and ensures long-term device stability.

Our Services

CD BioSustainable's Semiconductor Material Reliability Testing Services are exclusively tailored to support academic and industrial research initiatives, providing comprehensive, science-driven evaluation of semiconductor materials across the research and development (R&D) lifecycle. Our services are designed to address the unique needs of material scientists, process engineers, and device researchers, focusing on the validation of novel materials, elucidation of degradation mechanisms, and optimization of fabrication processes. We offer end-to-end testing solutions that span from initial material characterization to accelerated stress testing and failure analysis, with a focus on generating high-quality, reproducible data that adheres to rigorous scientific standards. Whether evaluating the reliability of next-generation 2D semiconductors (e.g., graphene, MoS₂), optimizing the performance of SiC power device materials, or validating the durability of advanced packaging composites, our services are customized to align with specific research objectives, providing the empirical data necessary to advance semiconductor material science.

Types of Our Services

Wafer-Level Reliability (WLR) Testing

Our wafer-level reliability testing is conducted on unprocessed or partially processed wafers, enabling early-stage evaluation of material performance before packaging—critical for reducing R&D costs and accelerating material development timelines. Key test protocols include:

Reliability-driven failure localization combines stress testing and analytical techniques to identify failure origins and degradation mechanisms.

Threshold Voltage Stability Testing

Evaluates shifts in threshold voltage (Vth) under prolonged electrical bias and temperature stress, a critical parameter for transistor performance. Using probe card technology with 0.35mm pitch precision, we measure Vth drift in less than 0.1V over 1000 hours of stress, providing data on bias temperature instability (BTI) in novel dielectric materials.

Electromigration (EM) Testing on Test Element Groups (TEGs)

Utilizes TEGs (patterned metal lines) to assess EM resistance in interconnect materials, applying high current densities (10⁶–10⁷ A/cm²) and monitoring resistance changes over time. Our EM testing quantifies the mean time to failure (MTTF) and validates compliance with JEDEC JESD35 standards for research-grade materials.

Electromigration testing on test element groups evaluates metal interconnect durability under sustained electrical current stress.

Dielectric Integrity Testing

Includes voltage-ramp (V-Ramp) and current-ramp (J-Ramp) tests to evaluate breakdown strength and leakage current in thin dielectrics. For high-κ dielectrics, we measure breakdown fields up to 10 MV/cm, providing data to optimize dielectric deposition processes.

Accelerated Stress Testing (AST)

Accelerated stress testing is a cornerstone of our research-oriented services, enabling the rapid evaluation of long-term material reliability by subjecting samples to elevated stress levels. Our AST protocols are designed based on Arrhenius and Peck models, ensuring that accelerated degradation mechanisms match those observed under real-world conditions:

High-Temperature Operating Life (HTOL) Testing

Exposes materials to elevated temperatures (up to 175°C) and constant electrical bias for 500–2000 hours, simulating long-term operational stress. For SiC power device materials, HTOL testing at 175°C with -5V bias has demonstrated zero failures over 2000 hours for optimized material formulations, validating their suitability for high-temperature applications.

Temperature-Humidity-Bias (THB) Testing

Combines high humidity (85–95% RH), elevated temperature (85–130°C), and electrical bias to accelerate moisture-induced degradation. Our THB testing is particularly valuable for evaluating packaging materials and metal contacts, with data showing that uncoated copper contacts exhibit significant corrosion (≥50% increase in resistance) after 96 hours at 85°C/85% RH, guiding the development of corrosion-resistant coatings.

Temperature Cycling (TC) and Thermal Shock Testing

TC testing cycles samples between -65°C and 150°C (10–2000 cycles) to evaluate thermal-mechanical fatigue, while thermal shock testing uses rapid temperature transitions (3°C/min) to induce stress cracking. For GaN-on-silicon wafers, TC testing reveals a 20% increase in defect density after 1000 cycles, providing insights into interface engineering improvements.

Failure Analysis and Material Characterization

Complementary to stress testing, our failure analysis and material characterization services provide a deeper understanding of degradation mechanisms, enabling researchers to identify the root cause of material failure. Key capabilities include:

:Dielectric integrity testing assesses insulation reliability, leakage behavior, and resistance to electrical breakdown.

Microstructural Analysis

Utilizes scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to visualize defects such as voids, cracks, and interface delamination at the nanoscale. For EM-tested metal interconnects, TEM imaging reveals atomic drift patterns and void formation, confirming the dominant degradation mechanism.

Chemical Composition Analysis

Employs X-ray photoelectron spectroscopy (XPS) and secondary ion mass spectrometry (SIMS) to detect chemical changes in materials post-stress. XPS analysis of humidity-stressed metal contacts identifies oxide layer formation (e.g., CuO, Al₂O₃) as the primary cause of resistance increase, while SIMS quantifies impurity diffusion (e.g., sodium, potassium) in dielectrics, which contributes to TDDB.

Electrical Characterization

Includes current-voltage (I-V) and capacitance-voltage (C-V) measurements to quantify post-stress performance changes. For transistor materials, I-V testing reveals reduced on-state current and increased leakage current due to BTI, providing data to optimize gate dielectric thickness and composition.

If you are interested in our services and products, please contact us for more information.

For Research or Industrial Raw Materials, Not For Personal Medical Use!