Explore our premium grade certified polymer and adhesive products engineered for extreme industrial tolerances.

The company focuses on the core track of functional tapes for the electronic industry, primarily engaged in the R&D, manufacturing, sales, and after-sales service of a series of products, including heat-seal cover tapes, self-adhesive cover tapes, acetate cloth tapes, glass fiber tapes, and PET tapes.

Jiangsu Yongjia Electronic Materials Co., Ltd. was registered and established in June 2007. After eighteen years of deep cultivation in the field of electronic materials, the company has developed into a comprehensive service provider of tape products with considerable influence in the industry. Located in the vibrant industrial environment of Nantong, the company covers an area of 16,000 square meters, with a building area of 9,000 square meters. Its scientifically planned production workshops, R&D laboratories, and office spaces are rationally designed, laying a solid foundation for high-quality development.
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Company employees
Industry experience

Our functional polymer solutions empower critical workflows across diverse modern electronics and manufacturing environments.
Reliable wire harness protection and high thermal resistant insulation.
Precision protective films safeguarding metal components during pressing.
Semiconductor carrier tape solutions for electrostatic and physical safety.
Flame-retardant insulation tapes meeting strict international standards.
As global electronic packaging transitions toward ultra-miniaturization, 3D stacking, and high-density system-in-package (SiP) layouts, polymer film and tape technologies must evolve accordingly. Our ongoing R&D roadmap focuses on zero-halogen flame retardancy, nano-enhanced thermal dissipation, and biodegradable bio-polymers that reduce environmental footprints without sacrificing mechanical integrity.
Integrating graphene and multi-walled carbon nanotubes into carrier tapes to achieve superior anti-static (ESD) performance and tensile strength under extreme temperature fluctuations.
Developing closed-loop recycling protocols and bio-based raw materials that comply with stringent European Union RoHS and REACH environmental directives.
Introduction of UV-cure and thermally activated release adhesives designed for precision micro-component pick-and-place manufacturing lines.
Operating out of our advanced 16,000 square meter production facility in Nantong, Jiangsu Yongjia combines automated coating lines, cleanroom slitting environments, and IoT-driven inventory management to guarantee uninterrupted global supply chains. By leveraging vertically integrated manufacturing, we control critical quality gates from raw resin formulation to finished roll slitting, offering unmatched lead times and cost efficiencies for multinational enterprises.
Computer-controlled tension control systems and inline optical inspection cameras ensure zero-defect output across millions of meters of cover tape and electrical insulating tapes.
Strategic stocking of raw substrates and standardized master rolls empowers rapid customization and emergency fulfillment for tier-1 automotive and semiconductor clients worldwide.

Adhering to strict international quality management standards to ensure compliance, safety, and reliability.

Consistently adheres to the core principle of "people-oriented," regarding talent as the primary resource for enterprise development.
Against the backdrop of steady growth in the global cover tape market, capacity optimization and technological advancement have become core competencies.
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Driven by the miniaturization and integration of electronic components, the demand for customized packaging materials is becoming increasingly prominent.
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As China's semiconductor industry accelerates its domestic substitution process, technological breakthroughs in packaging materials have become critical.
View moreFull spectrum of specialized adhesive tapes and high-temperature cover tapes designed for automated SMT packaging lines.
Expert insights addressing critical procurement, technical specification, and compliance inquiries for global buyers.
Key parameters include peel strength consistency (typically ranging between 10g to 80g depending on carrier tape width), surface resistivity for ESD protection (10^6 to 10^11 ohms), and thermal shrinkage stability during high-temperature reflow or sealing processes.
All our polymer films, acetate cloth tapes, and PET protection tapes undergo rigorous third-party testing to comply with EU RoHS, REACH, and Halogen-Free directives, ensuring complete safety for export into global markets.
Yes. With our in-house R&D laboratories and precision slitting equipment in Nantong, we specialize in customized width sizing, release liner modifications, and tailor-made adhesive peel strengths to match unique client manufacturing requirements.
Thanks to our robust Factory 4.0 infrastructure, standard master roll inventory, and automated production lines, standard bulk orders are typically fulfilled and ready for global shipment within 10 to 15 business days.

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