Observation of conductive particle shapes in COG implementation

Observing the state of conductive particles from the planar direction and cross-sectional direction! A case study confirming the degree of deformation.

We will introduce the observation of the shape of conductive particles in COG implementation. ICs and liquid crystal panels are implemented using the COG method with ACF (anisotropic conductive film). A resin ball is used as the core, and a metal layer (such as nickel or gold) is deposited on its surface for conductivity. During connection, the particles deform appropriately to electrically connect the IC and the panel. To confirm the degree of particle deformation and the connection state, cross-sectional observations were conducted, revealing that the amount of particle deformation was "medium," indicating an appropriate level of deformation. By examining the deformation of conductive particles from both the planar and cross-sectional perspectives, we can explore the correlation with display defects. Please feel free to contact us for any inquiries regarding panel-related issues. [Summary] ■ In implemented ICs, slight "warping" or "tilting" can cause differences in particle deformation between the edges and the center, potentially leading to display defects. ■ By examining the deformation of conductive particles from both the planar and cross-sectional perspectives, we can explore the correlation with display defects. *For more details, please refer to the PDF document or feel free to contact us.

• Analysis and prediction system

Support for the difficulties in the development and evaluation of components, devices, and materials related to semiconductor products.

【Testing, Evaluation, Analysis】 　●Reliability Testing 　　■Temperature Cycle Testing 　　■Thermal Shock Testing 　　■High-Temperature Storage Testing 　　■Highly Accelerated Life Testing 　　■Preconditioning 　　■Hot Oil Testing 　　■In-situ Continuous Measurement 　　■Ion Migration Testing 　　■Electromigration Testing 　　■Test Consulting 　●Evaluation Testing 　　■Bond Strength Testing: Pull/Shear Testing 　　■Mechanical Strength Testing: Vibration/Shock/Fall Testing/Compression Strength/Shear Strength 　　■ESD/Latch Up/CDM Testing 　　■Electrical Characteristic Measurement 　　■Salt Spray Testing 　●Analysis 　　■X-ray Transmission Observation 　　■Ultrasonic Microscope Observation 　　■Luminescence Analysis (EMS/IR-OBIRCH) 　　■Scanning Electron Microscope (SEM) 　　■Transmission Electron Microscope (TEM) 　　■Surface Contamination Analysis (TOF-SIMS) 　　■Foreign Material Analysis (FT-IR)

• Other analytical equipment

Some overseas manufactured parts and products may have quality issues. We provide quality evaluation services for reliability testing and assessment testing for these.

Some overseas manufactured parts and products may initially function without issues, but can cause malfunctions and lead to failures and breakdowns in a short period. Before adopting or using overseas products, please consider AIT's component and product quality evaluation services. ■ Examples of Overseas Component Evaluations - Reliability evaluation during the parts procurement and selection stage - Comparative evaluation between component and product manufacturers - Reliability evaluation when replacing current components with alternative components (cost reduction) ■ Examples of Supported Components - Active components (transistors, diodes, thyristors, etc.) - Passive components (capacitors, resistors, etc.) - LCDs - Circuit boards - Power supplies - Etc.

• Analysis and prediction system
• Other analytical equipment

Check the quality status of LCD components and products! We will analyze the structures of the LCD panel using our analytical methods and expertise!

At AITES, we conduct quality analysis of LCD components/products, confirming the quality status of products based on our expertise in LCD technology. The target panels include SEG-LCD, AM-LCD (a-Si TFT / LTPS TFT), OLED for automotive, monitors, mobile devices, and more. We perform quality analysis using our analytical methods on the various structures of liquid crystal panels. 【Analysis Details (Excerpt)】 <Reliability/Lighting Tests> ■ Classification - Reliability Testing - Lighting Inspection ■ Analytical Methods - Oven Drive Testing - Visual Inspection *For more details, please refer to the PDF document or feel free to contact us.

• Other analytical equipment

We will narrow down the defective areas through lighting confirmation, panel disassembly, and optical microscope observation!

We provide a defect diagnosis menu for LCD panels, from confirming defects to identifying causes and conducting detailed defect analysis. In the initial analysis, we perform a status check (lighting test), panel disassembly, and optical microscope observation, tailored to the defect symptoms. In the detailed analysis, we propose suitable methods such as surface analysis, cross-sectional analysis, and component analysis based on the diagnosis results from the initial analysis. It is also possible to speculate on the defect occurrence mechanism, including narrowing down the production processes that caused the defects. 【Analysis Content】 ■ Initial Analysis - Conducted based on the status check (lighting test), panel disassembly, and optical microscope observation, tailored to the defect symptoms. - Narrowing down from broad areas such as cell panels and surrounding circuits to finer details. ■ Detailed Analysis (additional analysis fees apply) - Proposing suitable methods such as surface analysis, cross-sectional analysis, and component analysis based on the diagnosis results from the initial analysis. - Speculating on the defect occurrence mechanism, including narrowing down the production processes that caused the defects. *For more details, please refer to the PDF document or feel free to contact us.

• Other analytical equipment

We can perform good product characteristic measurements for performance verification, as well as defective characteristic measurements and reliability evaluations!

Our company is capable of conducting performance verification through good characteristic measurements, defective characteristic measurements, and reliability evaluations for specific TFTs in LCD panels. In the "Electrical Characteristic Measurement of TFTs at Various Temperatures," we can disassemble the monitor in display mode and perform electrical characteristic measurements on the pixel TFTs within the panel. In the "DC Bias Stress Test," we apply an arbitrary DC bias to the Gate and Drain and measure the Vth shift when stress is applied to the TFT, thereby confirming reliability. 【Features】 <Electrical Characteristic Measurement of TFTs at Various Temperatures> ■ Electrical characteristic measurements can be performed on the pixel TFTs within the panel. ■ Measurements can be conducted before and after annealing, under light exposure, heating, or cooling conditions. ■ From the measurement results, indicators such as Ion, Ioff, Vth, and mobility can be calculated. ■ Confirmation of actual values in good product analysis and clarification of defect causes can be performed. *For more details, please refer to the PDF document or feel free to contact us.

• Measurement and Inspection

If you're having trouble with LCD analysis, we at ITES are here to help you find a solution!

Are you struggling with LCD analysis? We, at Aites, are here to help you find a solution! Structural Analysis: We evaluate and report on potential issues related to characteristics and structure in FPD products and advanced technologies that are constantly evolving. Failure Analysis: We approach and investigate the causes of manufacturing defects in increasing overseas products through the shortest route. Reliability Testing: Based on your objectives and needs, we propose the optimal reliability testing methods and conditions using our extensive know-how. [Contents] ■ Did you know? What is a display? ■ Panel analysis case studies ■ Tell me more! Aites' LCD analysis ■ Aites can perform these types of analyses!

• others
• Other PCs and OA equipment

Rich in equipment and expertise! We will elucidate the molecular structures of various materials through chemical equipment analysis!

There are various types of liquid crystal materials, including low molecular weight compounds used in LCD panels and high molecular weight polymers used in printed circuit boards and electronic components. We will introduce examples of analyzing the molecular structures of these low molecular weight liquid crystals and high molecular weight liquid crystals (LCP). Our company, equipped with a wealth of devices and expertise, can handle reliability testing and analytical analysis not only for liquid crystal materials but also for various other materials. Please feel free to consult us regarding the understanding of molecular structures of imported goods and materials, as well as troubleshooting issues. 【Case Study Content】 ■ Molecular structure analysis using FT-IR ■ Understanding of surface functional groups (molecular groups) through XPS (ESCA) analysis ■ Example of LCD liquid crystal material analysis using GC-MS *For more details, please refer to the PDF document or feel free to contact us.

• Other analytical equipment
• Measurement and Analysis Equipment

We propose analytical methods tailored to materials and purposes! Here are examples of chemical analysis for each component, such as liquid crystals and sealing materials.

Liquid crystal displays use various organic materials, including liquid crystals, sealing materials, encapsulants, and polarizers. Considering the material properties and degradation mechanisms of each component from a chemical perspective is important for product evaluation and failure analysis. This document presents examples of chemical analyses for the components of liquid crystal displays. [Examples of Chemical Analysis] - FT-IR: Principal component analysis - EDX: Elemental analysis - GCMS: Liquid crystal component analysis - HS-GCMS: Outgassing analysis (degradation analysis), among others *For more details, please refer to the PDF document or feel free to contact us.

• Measurement and Inspection
• Measurement and Analysis Equipment
• Other services and technologies

The observation target is an IC chip connected to the LCD panel using the COG mounting method! The circuit surface was clearly visible.

We will introduce a case where precision planar grinding was applied to remove wiring and conductive particles from a glass substrate, allowing for the observation of IC chip circuits with minimal damage. Careful planar grinding was performed from the glass substrate side, removing material down to a few micrometers from the IC chip, enabling the observation of the circuit surface. The IC chip circuit surface was clearly visible, and detailed observation at high magnification became possible. There are many samples, like the one in this case, where detailed observation has become possible through planar grinding, as well as samples that can be processed using FIB or CP techniques. If you have any samples you are struggling with, please consult us. We accept requests for planar grinding only, as well as requests that include observation and analysis. [Overview] <Planar Grinding and Optical Observation> ■ Careful planar grinding was performed from the glass substrate side, removing material down to a few micrometers from the IC chip, enabling the observation of the circuit surface. ■ The IC chip circuit surface was clearly visible, and detailed observation at high magnification became possible. *For more details, please refer to the PDF document or feel free to contact us.

• Other services and technologies

Numerous achievements in defect analysis! Detailed analysis is possible, from confirming phenomena to inferring the mechanisms of defect occurrence.

Our company conducts "failure analysis of overseas manufactured displays." We can perform detailed analyses, from confirming phenomena to hypothesizing the failure mechanisms and narrowing down the production processes that caused the issues. We carry out lighting observations, panel disassembly, and optical microscope observations tailored to the failure symptoms. If it is necessary to narrow down the defective areas and conduct detailed analysis, we will propose appropriate methods. 【Examples of detailed analysis (partial)】 ■ Cross-sectional observation of wiring ■ Foreign matter analysis ■ Liquid crystal component analysis ■ Electrical characteristic measurement *Additional costs will be incurred. *For more details, please refer to the PDF document or feel free to contact us.

• Other PCs and OA equipment

If any issues arise, detailed analysis will be provided! A simplified analysis for customers considering the introduction of overseas LCDs.

We would like to introduce the analysis of good quality liquid crystal displays by Aites Co., Ltd. First, as part of the visual inspection, we conduct optical microscope observations focusing on the FPC, FOG, COG, and sealing materials in the cell panel state. Next, we dismantle the cell panel to check the sealing materials, PI film, and TFT shape. If any defects are found during the good quality analysis, we will propose additional analyses such as cross-sectional observation of the wiring and foreign matter analysis to investigate the cause. Please feel free to consult us when needed. [Contents of Visual Inspection] ■ Are there any corrosion or foreign matter on the FPC wiring? ■ Is there any issue with the FOG bonding? ■ Is there any issue with the COG bonding? ■ Are there any breaks or defects in the sealing materials? *For more details, please refer to the PDF document or feel free to contact us.

• Structural Survey

Hotron Inc. has launched its new product, the "Vehicle Count Sensor CCS3"! This product is a ceiling-mounted sensor that combines infrared and radar technology. It reliably detects vehicles in both directions with a single unit, accommodating traffic during congestion and vehicle passing, thus achieving efficient occupancy management in large parking lots. Additionally, it can be utilized for exit warning purposes in addition to vehicle counting, contributing to the safe and smooth operation of parking facilities. 'Features' - Improved detection performance against changes in road surface during rainy weather by using both infrared and radar. - Equipped with IP67 waterproof and dustproof performance, making it effective even in salt damage areas. - Various settings can be configured from a dedicated app (for Android devices), with current settings easily visible at a glance. - The base dimensions are the same as the previous model "CCS2," allowing for smooth replacement of existing equipment. *For more details, please refer to the product information, catalog download, or contact us.*

Japan is one of the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of major earthquakes occurring. Regarding the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake countermeasures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" For more details, please download the materials or contact us.

PERI products are used at construction sites around the world. This time, we would like to introduce the construction work of the "Dunajec Road Bridge" spanning the Dunajec River in the town of Nowy Targ in southern Poland. The road bridge was planned to be constructed using a balanced cantilever method, dividing the cantilever beams starting from each pier into 10 segments. A particular concern was to strictly adhere to the concrete pouring cycle for each segment. To achieve this, a balanced cantilever carriage (VBC) equipped with a hydraulic advance system and an automatic formwork stripping function was adopted. By utilizing the VBC, it became possible to pour concrete for segments up to a maximum length of 5 meters in a single cycle, allowing for efficient and timely construction. PERI products: 1. TRIO Panel Formwork 2. VARIO GT24 Wall Formwork 3. PERI UP Flex Modular Scaffold 4. VST Heavy-Duty Shoring Tower PERI Japan Co., Ltd.

At a major purchasing specialty store located in Kanagawa Prefecture, we have introduced our commercial aroma diffuser rental service "MajestaFragrance," enhancing the store's atmosphere with fragrance. Installed models: MFmini (4,400 yen per month) × 2 units Adopted fragrance: Freesia Pear To ensure that customers visiting the store can relax during their appraisal and consultation time, we have implemented space branding with a "refined and approachable scent." The fragrance used is "Freesia Pear," which pleasantly spreads the freshness of fruity pear and the vibrant aroma of freesia. It warmly welcomes customers with a clean and high-quality scent. The "MFmini" introduced this time is a compact yet powerful diffuser known for its strong diffusion capabilities. It blends smartly into limited installation spaces such as reception counters and customer service areas, efficiently delivering fragrance. At Majesta Fragrance, we offer optimal diffuser models and fragrance suggestions tailored to the size of the store, type of business, and interior atmosphere. A "free trial installation" is also available before signing a contract.

We will be exhibiting at the "Osaka Industry Exhibition 2026" held at MyDome Osaka from October 14 (Wednesday) to 15 (Thursday), 2026. We will introduce our stress check, health management system, reservation and reception system, and interview system.