Wholesale Under Packaging Supplier & Factories

18 Years of Excellence in Functional Tape Manufacturing for the Global Semiconductor & Electronics Industry

The Strategic Importance of "Under Packaging" in Modern Electronics

In the rapidly evolving landscape of global electronics manufacturing, the term "Under Packaging" refers to the critical functional materials that support, protect, and facilitate the assembly of surface-mount devices (SMD) and delicate electronic components. As a leading Wholesale Under Packaging Supplier, Jiangsu Yongjia Electronic Materials Co., Ltd. understands that these materials are not merely consumables; they are the backbone of high-speed SMT (Surface Mount Technology) production lines.

The global market for electronic packaging materials is witnessing an unprecedented surge, driven by the miniaturization of semiconductors and the expansion of the Electric Vehicle (EV) and 5G sectors. Today’s industrial requirements demand tapes with exceptional thermal stability, precise adhesive properties, and anti-static capabilities. Our role as a specialized factory is to provide the high-performance heat-seal cover tapes and acetate cloth tapes that ensure zero-defect assembly processes for tier-one manufacturers worldwide.

πŸš€ Global Industry Status

The semiconductor packaging material market is shifting toward "System-in-Package" (SiP) and 3D packaging. This transition requires carrier and cover tapes that can handle smaller, thinner components with higher precision than ever before.

πŸ“ˆ Development Trends

Environmental sustainability and ESD (Electrostatic Discharge) protection are the two primary trends. Manufacturers are now seeking recyclable materials and "halogen-free" flame retardants to meet stringent global environmental standards like RoHS and REACH.

🌍 Sourcing Demand

International buyers from Southeast Asia, Europe, and North America are increasingly looking for reliable Chinese factories that offer a balance of R&D capability and cost-efficiency. Supply chain resilience is now the top priority for global procurement officers.

Jiangsu Yongjia Electronic Materials Co., Ltd.

Established in June 2007, we have dedicated over 18 years to the core track of functional tapes. Located in the industrial hub of Nantong, our 16,000-square-meter facility is a testament to Chinese manufacturing excellence. With advanced R&D laboratories and scientifically planned production workshops, we have emerged as a comprehensive service provider with significant influence in the electronic materials industry.

Our commitment to being a Wholesale Under Packaging Factory of choice is backed by our rigorous quality control and deep understanding of the semiconductor lifecycle.

2007

Year Established

16,000㎑

Factory Area

100+

Expert Employees

18+

Industry Experience

πŸ’Ž Our Core Product Series

Engineered for Precision, Stability, and Reliability

Heat Seal Cover Tape

Heat Seal Cover Tape

Standard and enhanced high-temperature series designed for high-speed peeling and consistent seal strength.

Self-Adhesive Cover Tape

Self-Adhesive Cover Tape

No heat required. Ideal for heat-sensitive components, providing a secure bond and easy application.

Acetate Cloth Tape

Acetate Cloth Tape

Available in flame-retardant and standard versions, with or without release liners for insulation and bundling.

PET Tape

Electrical Protection PET Tape

High dielectric strength and chemical resistance for electrical insulation applications.

Glass Fiber Tape

Glass Fiber Tape

High tensile strength and heat resistance for heavy-duty industrial reinforcement.

Customized Solutions

We provide OEM/ODM services to match your specific carrier tape requirements and peeling force standards.

πŸ› οΈ Industry Applications & Scenarios

Automotive

Automotive Electronics

Sensor packaging and ECU component protection.

Stamping

Precision Stamping

Temporary fixing and protection during metal parts fabrication.

Chip

Semiconductor Chip Packaging

Carrier tape sealing for passive and active components.

Electrical Appliances

Consumer Electrical Appliances

Insulation and flame-retardant bundling in household tech.

Why Partner with a Leading Chinese Under Packaging Factory?

As the global manufacturing center, China offers unparalleled advantages in the electronic materials sector. Jiangsu Yongjia leverages these to provide superior value to our international clients:

  • Complete Supply Chain Integration: Being located in Nantong allows us easy access to raw materials and international logistics hubs, ensuring shorter lead times.
  • Advanced Manufacturing Technology: Our factory utilizes high-precision coating and slitting machines that achieve tolerances impossible for smaller workshops.
  • Cost-Effective Innovation: We offer "China Price" with "Global Quality." Our R&D team continuously works on domestic substitution projects to provide high-end materials at competitive wholesale rates.
  • Rigorous Quality Certification: Our products meet international standards, ensuring that when you source from us, you are sourcing reliability and expertise.

πŸ“œ Our Quality Certificates

Cert 1
Cert 2
Cert 3
Cert 4
Cert 5

πŸ“° Latest Industry Insights

News 1

Strengthening Cover Tape Industry Foundation

Against the backdrop of steady growth, capacity optimization and technological advancement have become core...

Read More - 2025-12-10
News 2

Self-Adhesive Cap Tape Trends

Driven by miniaturization, the demand for customized packaging materials is becoming increasingly...

Read More - 2025-12-10
News 3

Semiconductor Packaging Upgrades

As China's semiconductor industry accelerates, technological breakthroughs in heat-sealing tapes...

Read More

Expert Insights: Choosing the Right Under Packaging Supplier

When searching for a Wholesale Under Packaging Supplier, procurement managers must evaluate several technical parameters. First is the peeling force stability. For cover tapes, the force required to peel the tape from the carrier tape must be consistent to prevent "tombstoning" or component ejection during SMT. At Jiangsu Yongjia, we utilize automated tension control systems to guarantee this stability across every roll.

Another factor is the surface resistivity. In ESD-sensitive environments, under packaging materials must dissipate static charges effectively. Our conductive and dissipative tapes are tested to meet the most stringent semiconductor standards. Furthermore, for acetate cloth tapes, the focus is on flame retardancy and adhesive residue. Our specialized formulas ensure that even after long-term exposure to heat, our tapes leave no residue on the components, maintaining the integrity of the PCB assembly.

In conclusion, the right supplier is not just a vendor but a partner who understands the intricate requirements of the electronics industry. With 18 years of experience, Jiangsu Yongjia Electronic Materials Co., Ltd. stands ready to support your global supply chain with premium materials, expert R&D, and reliable wholesale manufacturing capacity.