

Established in June 2007, Jiangsu Yongjia Electronic Materials Co., Ltd. has spent over 18 years mastering the complex science of high-temperature packaging and functional tapes. Located in the industrial hub of Nantong, our 16,000-square-meter facility is the epicenter of innovation for SMD (Surface Mount Device) packaging materials.
We are not just a manufacturer; we are a comprehensive service provider. Our expertise spans R&D, advanced manufacturing, and global sales of heat-seal cover tapes, acetate cloth tapes, and PET protection films. By integrating cutting-edge laboratories with high-capacity production lines, we ensure that every millimeter of tape meets stringent international standards for peel strength, heat resistance, and ESD safety.
Year Established
Factory Area
Professional Staff
Years Industry Experience

The global demand for high temperature bags and tapes is surging, driven by the explosive growth of the semiconductor and automotive electronics sectors. As components shrink (miniaturization) and power density increases, the need for materials that can withstand soldering temperatures (up to 260°C) without losing integrity is paramount. High-temperature series heat seal cover tapes have become the "silent guardians" of the global supply chain, ensuring chips remain secure during automated assembly.
The industry is shifting toward Anti-Static (ESD) and Halogen-Free materials. Future trends focus on "smart packaging"—tapes that offer not only physical protection but also chemical stability over long storage periods. We are seeing a 15% annual increase in the adoption of PET-based electrical protection tapes in EV battery management systems, where thermal management is a critical safety factor.
Procurement officers in the US, EU, and SE Asia are moving away from simple "lowest price" models toward "total cost of quality." They require suppliers who provide consistent peel strength, RoHS/REACH compliance, and logistical transparency. As a leading China factory, Jiangsu Yongjia bridges this gap by offering Western-grade quality with the logistical agility and cost efficiency of the Chinese manufacturing ecosystem.
High temperature bags and functional tapes find their utility in diverse, high-stakes environments. In the Automotive sector, our PET and glass fiber tapes are used for wire harness wrapping and battery insulation, where they must resist engine heat and vibration. In Consumer Electronics, our acetate cloth tapes provide flame-retardant insulation for laptop and smartphone internal components.
For Semiconductor Packaging, our heat-seal and self-adhesive cover tapes are used in tandem with carrier tapes. This allows for high-speed "Pick and Place" operations where even a minor failure in tape adhesion could lead to thousands of dollars in wasted components. Our Enhanced High Temperature Series is specifically designed for these high-speed environments, ensuring zero "pop-out" issues during the SMT process.
Choosing a specialized factory like Jiangsu Yongjia offers several strategic advantages:



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