Fri Sep 01 12:16:30 CST 2023
Compared to Lightning, Apple's interface standard, USB Type-C has obvious advantages in terms of cost, fast charging and compatibility, and the introduction of the E-Marker chip will strengthen its security. Apple 15 is also going to change to USB Type-C interface.
The USB Type-C industry chain mainly consists of two links: Chips and Connectors.
1. Chip is the core of the USB Type-C ecosystem, in addition to the chips applied in chargers and terminal devices, when complete support for the PD standard is required, it is also necessary to add the E-Marker chip in the cable to improve the safety of connector use.
2. In terms of connectors, USB Type-C will make the value of a single product significantly higher, and at the same time, due to the USB Type-C interface in the data transfer rate and charging power performance indicators doubled, the supplier's quality control capabilities require a higher level.
With the application of Apple 15 Thunderbolt interface (iPhone 15 series at least three with full-speed Thunderbolt 4), Thunderbolt (Thunderbolt) interface manufacturing process of high efficiency and cost reduction has become a critical node in the production of products, especially due to the requirements of its high-frequency testing, for the original production process must be optimised in order to stabilize the quality and reduce production costs, especially in the production process, laser stripping foil, YAG cutting, laser scratching internal quilt, laser welding and other important processes are directly related to the accuracy and efficiency of product testing performance. And reduce production costs, especially in the production process of laser stripping aluminium foil, laser paint, YAG cutting, laser scratching, laser welding and other important processes, directly related to the accuracy and efficiency of the product test performance.
Below is the current process flow of USB4/ Thunderbolt cable:
Cutting wire → stripping outer cover → turning braid wrapping copper foil → removing aluminium foil → threading clip dispensing → CO2 laser paint removal → tin plating → YAG braiding → lining up wire dispensing → CO2 laser inner cover → core wire ratio cutting → core wire tin plating → HotBar soldering → electric test → UV glue dispensing → assembling iron shell → iron shell soldering → forming inner and outer mould → electric test → external inspection → packaging.
1.1; Strip the braid/cover at both ends by approximately 20mm.
1.2; Turn the braid back over and ring wrap W=5mm copper along the root of the outer cover.
1.3; Tear off the exposed sheeting and cut off the braid that is not wrapped in copper.
2.1; Put on the wire clamps and mounted on the special jig for laser paint removal.
2.2; Lacquer removal → tin plating → laser YAG cutting and braiding.
2.3; Line up the wire → laser cutting core wire skin → than cut.
3.1; Put the connector into the special HotBar fixture for soldering.
3.2; After the completion of the welding machine electrical test, point UV adhesive, cut off the wire plus the excess part.
4.1; After assembling the iron shell, put it into the special tinplate welding jig.
4.2; Rivet the iron shell tail clip after welding.
4.3; Weld the iron shell tail clip.
As USB4 and Thunderbolt 4 40Gbps high speed transmission requires the cable to have extremely strong anti-interference ability and electrical performance stability, our process is designed to ensure the stability of high frequency transmission.
By HornmicLink_Bob Kuo @230904 20:21