Method for manufacturing high-frequency high-speed data transmission cable

Abstract

The invention discloses a method for manufacturing a high-frequency high-speed data transmission cable. The method comprises the following steps of: (1) extrusion-molding an insulating layer on a conductor to form a signal wire; (2) extrusion-molding an insulating layer on a conductor to form a null wire; (3) providing a conductor for forming a ground wire; (4) wiring the signal wire, the null wire and the ground wire and enabling the conductors of the signal wire, the null wire and the ground wire to be arranged in a row; (5) coating a metal layer on the signal wire, the null wire and the ground wire to form a total shield layer; and (6) enabling the total shield layer to be clung to the signal wire, the null wire and the ground wire through vacuum rolling. Compared with the prior art, the high-frequency high-speed data transmission cable manufactured through the method disclosed by the invention has the advantages of simple structure, rational layout, good anti-interference performance, convenience for being welded to a circuit board and suitability for Mini SAS (Serial Attached Small).

Description

technical field [0001] The invention relates to a cable manufacturing method, in particular to a high-frequency and high-speed data transmission cable manufacturing method. Background technique [0002] Mini SAS is used for the serial standard interface of hard disk, which can be called mini SAS hard disk connector, mainly used for SATA (serial advanced technology attachment, serial ATA standard interface) and SAS (serial attached Small Computer System Interface, serial SCSI standard interface). [0003] refer to figure 1 and figure 2 , the traditional mini-SAS hard disk connector 100 includes a data transmission line 110, a circuit board 130 connected to the two ends of the data transmission line 110, and an insulating shell 140 for installing the circuit board 130. The data transmission line 110 has two and is wrapped with an insulating braided Layer 120, the data transmission line 110 is formed by a number of wires arranged in parallel, the wires include four signal w...

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Problems solved by technology

[0004] However, on the one hand, when welding the twenty conductors in the data transmission line 110 to the connection terminal 131, it is necessary to arrange the conductors in the data transmission line 110 first, which is prone to errors during operation, and is difficult and inefficient; on the other hand aspect, such as image 3 As shown, since there are eighteen connection terminals 131 on each side of the circuit board 130, and there are twenty conductors in the data transmission line 110, when the connection terminals 131 and the conductors are soldered correspondingly, it is necessary to connect the signal lines 111, 112 adjacent to each other. The two ground conductors and the two adjacent ground conductors in the signal lines 112 and 113 are kneaded and welded to one ground terminal 131, which makes the process cumbersome and has a high error rate, which not only affects the yield of the mini SAS hard disk connector 100, but also reduces the Production efficiency of mini SAS hard disk connector 100

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