Premium functional carrier tapes, cover tapes, and specialized high-temperature insulating films engineered to support complex pick-and-place automation and thermal barriers.
In modern electronic systems, heat dissipation is no longer a localized engineering issue; it is a systemic challenge that governs component lifespans, performance thresholds, and operational safety. In high-density printed circuit board (PCB) layouts, surface-mounted devices (SMDs), and semiconductor packaging operations, the materials interfacing with active components must manage electrical pathways while exhibiting robustness under severe thermal stress. Functional tapes, specialized cover films, and insulating backing substrates form the unsung foundation of this system.
For instance, in semiconductor tape-and-reel operations, cover tapes must seal reliably against carrier tape pockets and peel away smoothly under high operational speeds without tearing or leaving adhesive residue. When high power components are processed, these tapes are subject to temperatures exceeding 150°C. Lower-grade packaging materials frequently degrade under these conditions, causing structural failure or leaving trace organic contaminants. Such contamination acts as an insulative layer that impedes the heat flow between thermal interface materials (TIMs) and heat sinks, ultimately causing the component to fail.
Eighteen years of deep technological leadership and manufacturing excellence in high-performance functional tapes and electronic materials.
Established in June 2007, Jiangsu Yongjia Electronic Materials Co., Ltd. has developed into a comprehensive manufacturing service provider in the electronics tape sector. Situated in the industrial zone of Nantong, Jiangsu Province, our modern facility spans 16,000 square meters, featuring 9,000 square meters of high-capacity cleanroom production space and state-of-the-art R&D laboratories.
We focus on high-performance functional tapes for the electronics and semiconductor sectors. Our product portfolio includes heat-seal cover tapes, pressure-sensitive self-adhesive cover tapes, acetate cloth tapes, glass fiber reinforced tapes, and high-performance PET electrical backing films. Our integrated industrial footprint ensures we control the entire quality loop—from raw polymer synthesis and precision adhesive coating to high-speed slitting and cleanroom packaging.
China's Yangtze River Delta, particularly Nantong in Jiangsu Province, functions as the primary cluster for electronic material supply chains. Global supply chains rely heavily on Chinese manufacturers for critical materials like carrier tapes, glass fiber backings, and acetate cloth insulation. This reliance is driven by several key factors:
Providing high-precision materials engineered to withstand structural loads, prevent ESD, and manage thermal profiles across demanding industry segments.
Engineers must match the physical and chemical profiles of substrate materials to the operating environments of their assemblies. Using the wrong carrier tape or backing film can lead to outgassing, electrostatic buildup, or mechanical breakdown.
Synthesized from processed cellulose fibers, acetate cloth tapes offer high conformity, mechanical wrap strength, and varnish absorption properties. These characteristics make them ideal for wrapping electric transformer coils, motor windings, and wire harness assemblies. Incorporating flame-retardant additives allows Jiangsu Yongjia's acetate tapes to pass strict UL 510 vertical flame trials. This ensures safety in high-load, high-temperature power supplies.
The choice between Heat-Seal Cover Tapes (HST) and Pressure-Sensitive Adhesives (PSA) is determined by packaging speeds and component sensitivity:
For heavy-duty battery cell retention, transformer bundle wrapping, and structural electronics, PET backing tapes with glass-fiber reinforcement provide excellent high-tensile resistance with minimal elongation. This prevents mechanical shifting during thermal contraction and expansion cycles, preserving critical clearances in automotive batteries and high-power transformers.
Our operations comply with international quality management standards, maintaining traceability and mechanical verification throughout the manufacturing process.
Detailed technical answers addressing common challenges in electronics packaging tapes, adhesive dynamics, and sourcing specifications.
Stay informed with technical developments, market expansions, and materials breakthroughs from our Nantong manufacturing center.
Against the backdrop of steady growth in the global cover tape market, capacity optimization and technological advancement have become core drivers for the semiconductor supply chain.
Driven by the miniaturization and integration of electronic components, the demand for customized packaging materials is becoming increasingly critical across automation lines.
As China's semiconductor industry accelerates its domestic supply processes, technological breakthroughs in packaging tapes have become central to reliable electronic operations.
Explore our full range of cleanroom-coated tapes, self-adhesive covers, high-temp heat-sealing layers, and fire-resistant acetate backings.
YONGJIA Electronic