Carrier tape is a strip-shaped packaging carrier specially designed for the SMT (Surface Mount Technology) process in the electronics manufacturing sector. When paired with cover tape and reel, it forms a complete packaging system that enables automated handling, protection, and precise feeding of electronic components, making it one of the core consumables in semiconductor and electronics assembly production lines.
Structure and Function
Core Structure: Along the length of the carrier tape, there are equally spaced cavities (pockets) for holding components, with synchronously arranged positioning holes on the edges that mesh with the gears of the SMT pick-and-place machine feeder to achieve millimeter-level precise step feeding.
Three Core Functions：
● Bearing and Protection: Components such as resistors, capacitors and IC chips are enclosed in independent cavities, to avoid collision, moisture damage and electrostatic damage during transportation and storage.
● Automated Feeding: After the SMT pick-and-place machine automatically peels off the cover tape, it achieves precise positioning through the index sprocket holes, sequentially delivering components to the nozzle pickup position to support high-speed SMT placement operations.
● Traceability Management: The new-generation QR code carrier tape can print traceability identifiers on its surface, enabling full production process traceability of semiconductor chips, and is suitable for high-reliability scenarios such as automotive electronics.
Classified by Anti-static Level
Insulating Type: Surface resistivity ≥ 10¹² Ω, suitable for common components with no electrostatic sensitivity requirements.
Anti-static (Static Dissipative) Type: Surface resistivity ranges from 10⁴ Ω to 10⁸ Ω, which can slowly dissipate accumulated charges, and is suitable for most conventional chips.
Conductive Type: Surface resistivity ranges from 10⁴ Ω to 10⁸ Ω, which quickly conducts static electricity across the entire area, and is specially designed for precision bare chips and automotive-grade power devices.
Industry Trends
The current carrier tape industry is upgrading towards higher precision and higher cleanliness. New energy automotive electronics and advanced packaging fields have become the core growth tracks. For automotive-grade carrier tapes, requirements for low particle contamination, batch consistency and extreme environmental tolerance continue to rise. Meanwhile, new technologies such as QR code traceability and 3D vision adaptation are also being gradually popularized.
