Engineered for stability, precision peel force, and high-speed SMT assembly compatibility.
A technical guide to raw material selection, peel force optimization, and electrical insulation in automated assembly.
In the rapid-precision environment of Surface Mount Technology (SMT) and semiconductor backend packaging, component protection is paramount. Custom inserts and sealing systems act as the primary interface between vulnerable passive components, integrated circuits (ICs), and the automated feeder pick-and-place nozzles. High-performance cover tapes, including both heat-seal cover tapes (HSA) and self-adhesive cover tapes (PSA), prevent structural shift, maintain static dissipative parameters, and protect components from atmospheric contaminants.
Understanding the mechanical dynamics of peel force is critical. When tape inserts are pulled from carrier pockets, any fluctuation in peel strength can cause component "fluttering" or pocket jumps, leading to expensive downtime and structural loss in high-speed assembly. Our products are formulated to ensure stable aging profiles, maintaining uniform peel strength tolerances whether stored at temperature-controlled facilities or exposed to ambient manufacturing conditions.
Peel Force Uniformity: Tight tolerances (e.g., 30g–80g depending on component scale) prevent ejection anomalies.
ESD Protection: Surface resistivity ranges from 105 to 1011 ohms/sq, mitigating static discharge risks.
Thermal Resistance: Advanced high-temperature backing materials withstand continuous baking processes without residue migration.
Combining flame-retardant acetate cloth with custom-engineered acrylic and rubber adhesive systems ensures robust thermal insulation and heavy-duty mechanical binding for complex electronics.
Maintaining micro-level width tolerances (+/- 0.1mm) is critical for standard high-speed carrier feeders. Standard widths (5.4mm, 9.3mm, 13.3mm, etc.) are optimized to align perfectly with EIA-481 standards.
Minimizing particulates is vital for semiconductor grade packaging. Yongjia operates specialized coating zones to prevent airborne fibers from embedding into adhesive structures, eliminating optical detection errors.
Registered and established in June 2007, Jiangsu Yongjia Electronic Materials Co., Ltd. has spent over eighteen years refining its production methodologies and expanding its technical footprint in the specialized electronics packaging ecosystem. Strategically situated in Nantong's robust industrial corridor, our manufacturing infrastructure covers an extensive footprint of 16,000 square meters, including 9,000 square meters of highly optimized production facilities.
Our commitment extends beyond tape coating to holistic material testing, aging performance analyses, and structural customization for high-density components. Guided by our ISO certifications, we utilize inline inspection units and specialized laboratory chambers to simulate temperature and humidity variations, guaranteeing that every roll delivered exhibits reliable mechanical characteristics.
Learn More About Yongjia →Navigating geopolitical, logistical, and environmental mandates with a robust Chinese manufacturing ecosystem.
Operating out of Nantong places Jiangsu Yongjia at the epicenter of the electronic materials industrial cluster. This provides immediate access to high-purity chemical suppliers, backing films, and domestic machinery manufacturers. We pass these integrated efficiencies to our global clients through reduced lead times and cost-effective bulk configurations.
By keeping chemical mixing, custom adhesive coating, precision slitting, and spooling under a single roof, we maintain rigorous control over each step of the manufacturing process. This eliminates multi-tier margins and guarantees traceable quality indices for every batch.
Electronics entering the European Union, North America, and other major markets must satisfy complex environmental guidelines. Our custom tape inserts, carrier tapes, and cover tapes are tested to meet modern RoHS and REACH requirements, ensuring they are free from restricted heavy metals, halogenated flame retardants, and hazardous phthalates.
For automotive and aerospace clients, meeting these compliance standards is mandatory. We provide comprehensive safety datasheets (SDS) and third-party laboratory verification reports (SGS) to support clean audits in complex supply chains.
From high-temperature chip encapsulation to automotive wire harness insulation, explore where our products excel.
Insulation, anti-friction, and binding for high-voltage battery harnesses and internal sensors.
Masking, surface-protection inserts, and carrier stabilization during continuous stamping.
Heat-seal cover tapes and carrier tapes designed for high-density ICs and SMD passives.
Dielectric protection and flame-retardant acetate tapes for transformers and relays.
Committed to international standards. Verified operational pipelines matching ISO-9001 and environmental regulations.
Consistently adhering to the core principle of "people-oriented," regarding talent as the primary resource for enterprise development and manufacturing optimization.
Against the backdrop of steady growth in the global cover tape market, capacity optimization and technological advancement have become core competencies. Yongjia continues investing in precise coating platforms...
Driven by the miniaturization and integration of electronic components, the demand for customized packaging materials is becoming increasingly prominent. Our new self-adhesive formulations balance adhesion and aging...
As China's semiconductor industry accelerates its domestic substitution process, technological breakthroughs in packaging materials have become critical to ensuring continuous assembly operations...
Addressing the key engineering and sourcing questions of semiconductor packaging managers and electronics engineers.
PSA cover tapes utilize pressure-sensitive adhesives that seal onto carrier pocket flanges through mechanically applied pressure rollers. This method requires no heating elements, which makes it easy to integrate into simpler machines. However, PSA tapes can exhibit variations in adhesion if pressure application is inconsistent. HSA cover tapes use thermo-activated adhesives that must be heat-sealed (typically between 150°C and 210°C). HSA provides a highly secure, hermetic seal and is the preferred standard for high-volume automated lines because it maintains stable peel force values over long storage periods.
We formulate anti-static properties directly into the coating matrix rather than relying on thin surface-sprayed alternatives. This prevents the anti-static agents from migrating or wearing away under friction. Our cover and PET tapes maintain surface resistivity within the targeted 105 to 1011 ohms/sq range, even in low-humidity environments, protecting sensitive CMOS chips and microcontrollers from electrostatic damage.
We produce cover tapes matching all standard carrier sizes defined by the EIA-481 global standard (including 8mm, 12mm, 16mm, 24mm, 32mm, 44mm, 56mm, and up to 104mm). Our inline slitting machines maintain tolerances within +/-0.1mm. If your process uses specialized pocket inserts or custom packaging dimensions, our engineering team can formulate custom adhesive matrices and specify release properties tailored to your exact carrier tape materials (e.g., PS, PC, or PET).
Yes, our flame-retardant acetate cloth tapes are specifically engineered to provide heavy-duty electrical insulation in transformers, electric motor coils, and automotive power electronics. They feature a high dielectric breakdown voltage (typically above 2.5kV) and satisfy international flame-retardant standards. This ensures they resist ignition and carbon tracking when exposed to prolonged thermal stresses.
Examine full structural details, material configurations, and select the optimal tape system for your project.
YONGJIA Electronic