BGA port radio frequency transmission performance detection device and detection method

Abstract

The invention relates to the field of radio frequency circuits, and discloses a BGA port radio frequency transmission performance detection device and detection method. The BGA port radio frequency transmission performance detection device comprises a radio frequency connector, a radio frequency substrate for transition, and BGA balls. The radio frequency connector is provided with an interface used for being connected with a radio frequency tester, the radio frequency connector is connected with one surface of the radio frequency substrate, the BGA balls are arranged on the other surface of the radio frequency substrate, and the array arrangement form of the BGA balls corresponds to a radio frequency port array of a BGA bonding pad of the composite substrate; and the BGA balls are connected with the corresponding radio frequency ports on the composite substrate through the radio frequency elastic interconnection structures to realize radio frequency interconnection. According to the device and method, the radio frequency transmission performance of the bare board of the composite substrate provided with the BGA packaging radio frequency product is detected in advance, and the radio frequency performance screening work of the bare board before assembly is completed; and the frequency test range is expanded to more than four times of that in the prior art. By integrating with aproper automatic machine, automatic positioning, testing and screening functions can be realized, and the detection and screening efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of radio frequency circuits, in particular to a device and method for detecting radio frequency transmission performance of a BGA port. Background technique [0002] With the realization of miniaturized BGA-packaged RF devices, the implementation form of RF components has gradually changed from traditional hybrid integration to the form of RF substrate + BGA-packaged RF devices. Since the BGA pad is at the bottom of the device, it cannot be detected after assembly, and the BGA RF port The performance cannot be similar to digital and other ports, and the flying probe test is used to test the continuity and other methods. It is necessary to test the RF performance of the BGA RF port on the bare board of the RF substrate before assembly. [0003] The commonly used BGA RF ports on the bare board of the RF substrate are shown in Figure 1(a) and Figure 1(b). In order to achieve good radio frequency transmission, several ci...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to solve the problem of detecting and screening the radio frequency transmission performance of the composite substrate bare board with BGA packaged radio frequency products, a BGA port radio frequency transmission performance detection device and detection method are provided

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