A camera module open circuit short circuit automatic test equipment and test method thereof

Abstract

The present invention relates to a camera module open-circuit and short-circuit automatic test equipment and its method. The camera module open-circuit and short-circuit automatic test equipment includes: a logic control unit; a parameter test unit; and an analog-to-digital conversion unit, wherein the A logic control unit, the parameter testing unit and the analog-to-digital conversion unit are electrically connected to form a detection circuit, the parameter setting unit can drive at least one set of currents in the detection circuit, and at least one camera module chip passes through the At least one pin of the chip is connected to the detection circuit to detect the open circuit and short circuit of the chip through the analog-to-digital conversion unit and the logic control unit.

Description

technical field [0001] The invention relates to an automatic test device for open circuit and short circuit of a camera module, in particular to an automatic test device for open circuit and short circuit of a camera module and a test method thereof. Background technique [0002] Today, as camera modules are widely used in electronic products such as mobile phones, tablet computers, laptops, and LCD TVs, the demand for miniature and high-quality camera modules is urgently needed to be provided with an inestimable daily demand. Among them, the open circuit and short circuit detection of the camera module is a key means to ensure the quality and performance of the camera module. However, the traditional equipment for detecting the open circuit and short circuit of the camera module is based on a PC as the control center, and furthermore, the unavoidable reality of the detection device being huge and expensive is the development of the camera module. At the same time, the trad...

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Problems solved by technology

However, the traditional equipment for detecting the open circuit and short circuit of the camera module is based on the PC and the control center. Furthermore, the unavoidable reality that the detection device is huge and expensive has a great impact on the development of the camera module.

At the same time, the traditional detection device is to test the open circuit and short circuit of the camera module by driving a set of currents. This method inevitably has a test load, that is to say, the traditional detection device cannot guarantee the safety of the camera module. Product yield

In addition, it cannot be ignored that the interface of the traditional testing device is different from that of the camera module under test, so it is necessary to design a special adapter board, and realize the connection between the test device and the tested camera module through the adapter board. The connection between the camera modules has caused a lot of inconvenience to the production

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