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Improving Foreign Object Removal Rate in Liquid Bath Cleaning of Communication Equipment Parts | Joint Proposal of High-Performance Filter and Local Evaluation in Vietnam

Defects caused by foreign objects occurring in the liquid bath cleaning process of communication equipment parts directly impact downstream yields and complaints. We offer an upgrade to high-performance filters with high collection accuracy and long lifespan, combined with local prototyping and evaluation at our Vietnam base. This approach has successfully raised quality levels in a short period and reduced re-cleaning costs in downstream processes. Deterioration of Yield Caused by Foreign Objects Occurring in Liquid Bath Cleaning Lines Foreign objects remain in the liquid bath cleaning process of communication equipment parts, causing defects to manifest in downstream processes. There is a desire to raise the quality level.The collection accuracy and durability of the current filter fail to meet requirements. An upgrade is an urgent matter.●Scenarios where manifested: Improvement of existing lines. Emerged as a requirement during a quality meeting at the Vietnam factory.●Main impacts: Deterioration of yield, increased re-cleaning costs in downstream processes, and complaints from customers. Why Do Foreign Objects Remain? Limits of Filter Physical Properties and Cleaning Liquid Contamination Physical property limits of the existing filter (collection accuracy and lifespan). Foreign objects re-adhere due to the progression of cleaning liquid contamination.Basis of identification: Interviewing about the quality level on-site / Comparison between defective samples and filter-collected samples. Countermeasures Tried So Far and Their Limits Increasing the filter replacement frequency (limited effect despite increased costs), and adjusting the cleaning liquid concentration (concern over parts damage).Based on these limitations, we adopted the following approach as a more fundamental countermeasure. Solution Approach: Upgrading to High-Performance Filters × Local Prototyping and Evaluation Implemented grade changes of existing materials (replacement with high-performance filters) + on-site prototyping and evaluation. STEP. 01 Alternative Product Search Comparing high-performance filters from multiple manufacturers using technical data STEP. 02 Local Evaluation Rapidly iterating prototyping and on-site evaluation at our Vietnam base STEP. 03 Sharing Technical Expertise The Japanese technical team and local staff collaborate to organize evaluation data Fuji Chemi Trading's Support System: Vietnam Base × Headquarters Technology × Partner Manufacturers This solution is realized through the division of roles across multiple bases.・Vietnam Base: Customer window, on-site evaluation, and prototype delivery・Headquarters / Technology: Filter grade comparison and evaluation reports・Partner Manufacturers: Stable supply of high-performance products and provision of physical property data●Supply System: Local delivery support, small samples for evaluation can be shipped immediately. Results of Implementation Improved collection accuracy reduced defects caused by foreign objects. Yield in downstream processes stabilized.●KPI Candidates: Defect rate reduction / Optimization of filter replacement costs / Reduction of re-cleaning in downstream processes.●Implementation Lead Time: After prototyping and evaluation, rolled out to mass production locally in a short period. Expected Ripple Effects and Horizontal Rollout The effects of implementing this solution extend beyond solving the primary issue. Please also utilize it as material for internal and management-level proposals.・Horizontal rollout to other cleaning lines (precision parts, semiconductor peripherals, substrates)・Collaborative sales with filter housing and filtration equipment manufacturers・High reproducibility under the theme of "complaints caused by foreign objects," making it easy to replicate across operations・Creating a reference case for other factories in Vietnam and other companies Difference from Competitors: Why Fuji Chemi Trading is Chosen Overseas filter trading companies focus mainly on single product sales. Fuji Chemi is capable of offering proposals that combine "local evaluation + Japanese quality + communication equipment expertise." Product Information and Spec Summary The main specifications of products with a proven track record of adoption can be selected from multiple grades depending on the application and requirements. Typical specifications are as follows (please contact us for detailed specifications). ItemSpecificationsMain ApplicationForeign object removal in liquid bath cleaning lines (for communication equipment parts)Filter TypeMultiple grades depending on application (centered on high-performance products)Collection AccuracySelected according to application requirements (micron to submicron)Supported ProcessesPre-cleaning / Main cleaning / Final cleaningLocal EvaluationRapidly iterating prototyping and on-site evaluation at our Vietnam baseDelivery FormLocal delivery support, small samples for evaluation can be shipped immediately How to Utilize and Operational Examples For actual operations, the following patterns are widely adopted.・Evaluation Phase: Requirement hearing → Sample evaluation → Specification finalization・Pre-mass Production Preparation: Cross-base division of roles, specification standardization, and local launch・Mass Production Phase: Ensuring short lead times and stable supply through our supply system・Horizontal Rollout: Supporting horizontal rollout to other bases and other projects FAQ (Frequently Asked Questions) How do we proceed with filter selection? We will interview you regarding the current situation of foreign object generation, the type of cleaning liquid, and flow rate conditions, compare the specifications of candidate filters, and then proceed to prototype evaluation. Can you also support overseas factories outside of Vietnam? Yes, similar prototype evaluation support is also available at our Thailand and China bases. Is it possible to request samples for evaluation? Yes, it is possible. Please let us know your required physical properties, flow rate, and expected foreign object size. Can we also request collaboration with the filtration equipment manufacturer? Yes, we can also propose collaborative sales efforts with filter housing manufacturers and filtration equipment manufacturers. Can you also offer proposals for other cleaning processes (semiconductors, precision parts)? It is also applicable to measures against foreign objects in the fields of precision parts, semiconductor peripherals, and substrates. Proposals by Related Applications and Issues ■Stable Supply and High Quality of Fluoropolymer Film (FEP/PFA) | Providing Multiple Samples with Short Lead Times through In-House Slitting■Joint Development of Low-Contamination Release Separator (Zero Adhesive Residue) | Achieving Both Function and Quality through Optimal Blending of Adhesive × Hardener■Local Procurement of Static Electricity Measures for OA Equipment in Vietnam | Selecting Static Elimination Brushes and Conductive Fibers Aligned with the Manufacturer's Design Philosophy

ベトナム拠点

品質向上 x 歩留まり改善

評価サポート

高機能フィルター

高機能材料

Adoption of Chinese-made PI Tape for Heat-Resistant Process Film | Cost Optimization via Just-Spec Specifications

While domestic high-spec PI tapes offer more than adequate performance, they are often over-engineered for specific applications. By selecting a "just-spec" grade from a Chinese manufacturer that perfectly matches the application's needs, and verifying its quality through our Shanghai base, we achieved both cost reduction and quality maintenance. Deterioration of the Cost-of-Sales Ratio for Heat-Resistant Process PI Tapes and the Necessity of "Just-Spec" Optimization Cost reduction is required for PI tapes used in heat-resistant processes. However, since high-spec options are excessive for this application, the goal is to select an appropriate grade.Previously, domestic high-spec PI tape was adopted, but it was over-engineered for the specific application.●Context of emergence: Cost improvement phase.●Primary impacts: Deterioration of the cost-of-sales ratio, decline in price competitiveness. Why High-Spec Products are Excessive: The Gap Between Actual Application Requirements and Specifications Continued adoption of high-spec products serves as a cost-up factor. For actual applications, an acceptable/usable level is more than sufficient.●Specific evidence: Physical property comparison of existing materials and processing tests. Countermeasures Attempted So Far and Their Limitations Price reduction negotiations for domestic high-spec products (reached limits), and substitution with alternative films (insufficient heat resistance).Based on these limitations, we adopted the following approach as a more drastic/fundamental solution. Solution Approach: Application-Specific Grade Design × New Chinese Supplier Development × Quality Verification via Shanghai Base Through the development of new foreign suppliers + collaboration with overseas bases, we adopted PI tape with cost suitability that perfectly matches the application. STEP. 01 Supplier Development Evaluating multiple Chinese-made PI tapes STEP. 02 Downgrading Proposals Setting necessary and sufficient specifications for the application STEP. 03 Local Collaboration Quality verification and local procurement via Shanghai Base Fujichemi Trading's Supply System: Head Office × Shanghai Base This solution is achieved through the division of roles across multiple bases.・ Head Office / Domestic Sales: Customer window and cost proposals・ Shanghai Base: Local manufacturer coordination and quality verification●Supply System: Stable supply of overseas procured products. Results of Implementation Achieved cost reduction. Specifications maintained at an acceptable/usable level while preserving quality.●KPI Candidates: Cost reduction / Maintaining zero quality complaints / Diversification of procurement routes.●Implementation Lead Time: Repeating prototyping and evaluation to switch to mass production. Anticipated Ripple Effects and Horizontal Deployment The effects of implementing this solution extend beyond solving the primary issue. Please utilize this as material for internal and management-level proposals.・Applying the same "application-specific grade design" to films for other processes (PET, PEN, PPS)・Modeling the "optimized selection proposal" in the electric wire and electronic component sectors・Breaking out of sales commoditization through switching proposals from "high-spec to just-spec"・Creating a case study of being adopted in the customer's internal cost reduction projects Difference from Competitors: Why Fuji Chemi Trading is Chosen Domestic specialized trading companies tend to offer only a single high-spec proposal. Fuji Chemi supports breaking away from excessive specifications through "application-specific grade design" and "quality verification at the Chinese base." Product Information and Specification Overview The main specifications of the products with a proven track record of adoption can be selected from multiple grades depending on the application and requirement conditions. The representative specifications are as follows (please contact us for detailed specifications). ItemSpecificationMain ApplicationFilm for heat-resistant processes in electric wires, air conditioners, and various equipmentMaterialChinese-made polyimide (PI) tapeDesign CoreGrade of "usable level" that matches practical application requirementsQuality VerificationLocal manufacturer quality verification at Shanghai BaseScalabilityApplicable to films for other processes such as PET, PEN, and PPSCost BenefitCost reduction compared to domestic high-spec products Utilization Methods and Operation Examples The following patterns are frequently adopted in actual operations.・Evaluation Phase: Requirement hearing → Sample evaluation → Specification finalization・Pre-mass Production Preparation: Division of roles across bases, Specification unification and Local startup・Mass Production Phase: Ensuring short lead times and stable supply through our supply system・Horizontal Deployment: Supporting horizontal deployment to other bases and projects FAQ (Frequently Asked Questions) Is the risk of switching to just-spec acceptable? Since we select the necessary and sufficient performance after organizing the practical application requirements, we can minimize the risk of reducing excessive specifications. Can this be applied to films for other processes as well? The "application-specific grade design" can also be applied to other films such as PET, PEN, and PPS. Is the quality variation of Chinese products acceptable? We supply products after ensuring quality verification and traceability at our Shanghai Base. Can other suppliers be considered as candidates from a BCP perspective? We also accept consultations regarding combined use with domestic products and multi-sourcing. Is there a selection guide categorized by application? We can provide an application-specific grade selection matrix. Proposals by Related Applications and Challenges ■ Overseas Procurement of PET Film for Power Cables + Domestic Slitting | Cost Reduction with Equivalent Quality■ BCP Multi-sourcing of Ferrite Cores for Cable Noise Removal | Equivalent Quality x Stable Supply x Cost Reduction■ BCP-Compliant Procurement of FRP Gratings for Plants | Mass Production Through Overseas Supplier Development and Quality Reproduction

BCP x 安定供給

コストダウン

上海拠点

中国製ポリイミド(PI)テープ

原価低減

耐熱工程用フィルム

高機能材料

Multi-sourcing for BCP of Cable Noise Suppression Ferrite Cores | Balancing Equivalent Quality, Stable Supply, and Cost Reduction

Quality variation and supply anxiety due to dependency on a single supplier—by multi-sourcing ferrite cores for cable noise suppression, we achieved a stable supply and cost reduction simultaneously while ensuring equivalent quality. This is a standard scheme in fields where demand is growing due to the EV shift and 5G adoption.This solution is tailored for companies facing challenges in the stable procurement of EMC and noise countermeasure components, such as electric wire manufacturers, air conditioner manufacturers, and automotive equipment manufacturers. Simultaneous Challenges of "Defects/Complaints & BCP" Surface in Cable Noise Countermeasures For cable noise suppression ferrite cores, responding to defects/complaints and addressing BCP (multi-sourcing) were requested simultaneously.Dependency on a single supplier reached its limit in terms of both quality variation and risk.● Situations where it surfaces: The defect and complaint response phase.● Main impacts: Frequent complaints, production line stoppages, and the requirement to balance both quality stability and cost competitiveness. Why Dependency on a Single Supplier is Risky: Quality Variation and Prolonged Lead Times Procurement and supply chain factors (supply anxiety, lead times). Dependency on a single supplier.● Specific evidence/basis: Physical property comparison of existing materials, defect sample verification. Countermeasures Attempted So Far and Their Limitations Requesting quality improvements from the single supplier (reached its limit), and abruptly searching for alternative sources (unstable).Based on these limitations, we adopted the following approach as a more radical and fundamental solution. Solution Approach: Developing New Overseas Manufacturers × Parallel Supply Across 3 Sites × Iterative Prototype Evaluation By developing new products from overseas manufacturers and coordinating across 3 sites, we achieved both equivalent quality and stable supply, while also reducing costs. STEP. 01 Developing Overseas Suppliers Sourced ferrite cores with equivalent physical properties STEP. 02 Multi-Site Coordination Parallel supply across China, Thailand, and Vietnam STEP. 03 Iterative Prototyping and Evaluation Confirmation of equivalent quality Fuji Chemi Trading's Supply Network: Headquarters × Shanghai × Thailand × Vietnam This solution is made possible through the division of roles among multiple sites.・Headquarters / Domestic Sales: Customer window and quality control・Shanghai / Thailand / Vietnam: Supplier coordination, local customs clearance, and inventory● Supply Network: Multi-source supply / Inter-site flexibility / Local delivery. Results of Implementation Eliminated delivery troubles, stabilized quality, and achieved cost reductions.● KPI Candidates: Reduction in number of complaints / Zero delivery delays / Cost reduction.● Implementation Lead Time: Repeating prototypes and evaluations, then transitioning to mass production. Expected Ripple Effects and Horizontal Rollout The effects of implementing this solution extend beyond solving the primary challenge. Please also leverage this as material for internal proposals and presentations to executive management.・Rollout to general EMC countermeasure components (common mode chokes, shielding tapes, gaskets)・Cross-industry expansion from white goods to automotive EMC countermeasures・Perfect fit for the sharp increase in noise countermeasure demand driven by the EV shift・Creation of BCP content under the theme of "breaking away from single-supplier dependency" Difference from Competitors: Why Fuji Chemi Trading is Chosen Domestic independent trading companies tend to lag behind in implementing overseas multi-sourcing. Fuji Chemi can handle parallel procurement across 3 sites in China, Thailand, and Vietnam, lowering costs while ensuring equivalent quality. Product Information & Specification Overview The main specifications of our proven products can be selected from multiple grades depending on the application and requirements. Typical specifications are as follows (please contact us for detailed specifications). ItemSpecificationMain ApplicationFerrite core for cable noise suppression / EMC countermeasure componentsTarget IndustriesElectric wire / Air conditioners / Various equipment (White goods, automotive, etc.)Supply TypeMulti-source supply (Multiple manufacturers, multiple sites)SitesParallel supply across China (Shanghai) / Thailand / Vietnam sitesRelated FieldsCommon mode chokes / Shielding tapes / Gaskets, etc.Rollout ScenariosEV shift / 5G adoption / Automotive EMC countermeasures Utilization Methods & Operational Examples In actual operations, the following patterns are frequently adopted.・Evaluation Phase: Requirement hearing → Sample evaluation → Specification confirmation・Pre-Mass Production Preparation: Division of roles across sites, specification standardization, and local launch・Mass Production Phase: Ensuring short lead times and stable supply through our supply network・Horizontal Rollout: Supporting horizontal rollout to other sites and other projects FAQ (Frequently Asked Questions) How do you ensure quality in multi-sourcing? We ensure equivalent quality by repeating physical property comparisons and prototype evaluations for each manufacturer's product before proceeding with parallel supply. Is it possible to propose general EMC countermeasure components? Yes, we can propose general EMC countermeasure components, including common mode chokes, shielding tapes, and gaskets. Is it possible to expand into the EV and automotive sectors? Yes, we can support the growing demand for noise countermeasures driven by the EV shift. We also have a proven track record in automotive EMC countermeasures. Is it possible to use your services in combination with existing domestic suppliers? Yes, it is possible. By using a dual-sourcing scheme that combines domestic and overseas products, you can also leverage it as a bargaining chip for price negotiations. What is the extent of the cost reduction? Although it depends on the specific project, there are many cases where cost reductions can be expected by strengthening your bargaining power through multi-sourcing. Proposals by Related Application and Challenge ■ Overseas Procurement of PET Film for Power Cables + Domestic Slitting | Cost Reduction with Equivalent Quality Guaranteed■ BCP-Compliant Procurement of FRP Gratings for Industrial Plants | Achieving Mass Production via Overseas Supplier Development and Quality Replication■ Adoption of Chinese-made PI Tape for Heat-Resistant Process Films | Cost Optimization through Just-Spec Specifications

BCP x 安定供給

コストダウン

タイ拠点

ノイズ対策部材

フェライトコア

ベトナム拠点

上海拠点

品質向上 x 歩留まり改善

高機能材料

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