Alfa Chemistry provides a comprehensive range of consumables for electronic components and manufacturing processes, supporting global customers with reliable packaging materials that enhance production efficiency and product stability. Among these solutions, top tape, bottom tape, and cover tape play a critical role in carrier tape packaging systems used for semiconductor devices and electronic components. These tapes are engineered to deliver stable sealing performance, excellent electrostatic control, and consistent peel strength, ensuring safe handling and automated assembly compatibility across diverse production environments.
What We Offer
Top tape is designed for secure sealing of carrier tapes while maintaining excellent electrostatic dissipation and stable adhesion performance. It is widely used in electronic component packaging where precise protection and easy release are required.
Key Features:
- PET-based structure with hot-melt adhesive and anti-static surface layer
- Efficient electrostatic dissipation, preventing component attraction and contamination
- Wide heat-sealing temperature range for flexible processing conditions
- Stable bonding strength with low variation after sealing with paper carrier tapes
- Consistent peel force ensures smooth automated pick-and-place operations
Top tape helps ensure that electronic components remain securely sealed during transportation and storage, while also enabling smooth opening during assembly processes without damaging sensitive devices.
Bottom tape serves as a foundational component in carrier tape packaging systems, offering stable support and effective electrostatic dissipation during the sealing and handling process. It is particularly suitable for applications requiring consistent mechanical strength and process stability.
Key Features:
- Made from cotton paper substrate with hot-melt adhesive coating
- Provides effective electrostatic dissipation to minimize static-related risks
- Wide heat-sealing temperature adaptability for improved processing flexibility
- Stable bonding strength with carrier tapes for reliable sealing performance
- ACSEM-Con-0006 version available without anti-static treatment for specific applications
Bottom tape ensures reliable adhesion and structural stability in packaging systems, helping maintain consistent performance throughout automated production, transportation, and storage processes.
Cover tape is designed to seal electronic components within carrier tapes, offering strong protection and controlled peel characteristics tailored to different device types and production requirements.
Key Features:
- PET-based material with hot-melt adhesive and anti-static surface layer
- Strong electrostatic dissipation capability for sensitive electronic components
- Wide heat-sealing temperature range with excellent sealing performance
- Stable and consistent peel strength when sealed with plastic carrier tapes
- Available in widths from 5.3 mm to 21.3 mm, supporting single-layer (reel) or multi-layer (reciprocating) winding formats
- ACSEM-Con-0008 designed for passive components, ACSEM-Con-0009 optimized for active components
Cover tape ensures safe containment of components while maintaining easy peelability during automated pick-and-place operations, improving overall production efficiency and reducing the risk of component damage.
Product Specification
Top Tape
Bottom Tap
Cover Tape
| Catalog Number | Thickness (μm) | Tensile Strength (kgf/5.25 mm) | Tension (g) | Surface Resistance (Ω) | Core Size (inch) | Length (m) |
| ACSEM-Con-0001 | 52±5 | 2.8±0.8 | 10-70 | 9.99×103~9.99×1012 | 3/6 | 8000 |
| ACSEM-Con-0002 | 52±5 | 2.8±0.8 | 10-70 | 9.99×103~9.99×1010 | 3/6 | 8000 |
| ACSEM-Con-0003 | 52±5 | 2.8±0.8 | 10-70 | 9.99×103~9.99×1010 | 3/6 | 8000 |
| ACSEM-Con-0004 | 52±5 | 2.8±0.8 | 5-40 | 9.99×103~9.99×1010 | 3/6 | 8000 |
| ACSEM-Con-0005 | 46±5 | 2.0±0.8 | 5-35 | 9.99×103~9.99×109 | 3/6 | 3000 |
| Catalog Number | Thickness (μm) | Tensile Strength (kgf/5.25 mm) | Surface Resistance (Ω) | Core Size (inch) | Length (m) |
| ACSEM-Con-0006 | 42±7 | 1.1±0.4 | - | 3/6 | 12000 |
| 3 | 24000 |
| ACSEM-Con-0007 | 42±7 | 1.1±0.4 | 9.99×103~9.99×1010 | 3/6 | 12000 |
| 3 | 24000 |
| Catalog Number | ACSEM-Con-0008 | ACSEM-Con-0009 |
| Thickness (μm) | 54±5 | 52±5 |
| Tension (g) | 10-130 | 10-130 |
| Surface Resistance (Ω) | Adhesive Surface | 9.99×103~9.99×1011 | 9.99×103~9.99×1011 |
| PET Surface | - | 9.99×103~9.99×1011 |
| Core Size (inch) | 3/6 | 3/6 |
| Length (m) | 480, 2000, etc | 480, 2000, etc |
| Haze | ≤35% | ≤35% |
| Transmittance | ≥80% | ≥80% |
Why Choose Alfa Chemistry
With continuous innovation and strict quality control standards, Alfa Chemistry is committed to delivering high-performance tape solutions that meet the evolving demands of the global electronics industry. Our top tape, bottom tape, and cover tape products are engineered for excellent electrostatic protection, stable adhesion performance, and broad process adaptability, ensuring compatibility with modern high-speed automated assembly systems. If you have any needs, please feel free to contact us.
