PCBA Tech - Importance of AOI testing equipment to PCBA manufacturers

Why is AOI testing equipment indispensable for PCBA manufacturers? We know that PCBA equipment is the most basic guarantee for the quality of PCBA products. Good SMT patch equipment can effectively improve production efficiency, and more importantly, ensure the quality of your PCB circuit board. As an IPCB of high-end PCBA manufacturers, today we will explain the importance of AOI detection equipment for SMT patch processing.

The function of AOI detection device is: when auto-detecting, the machine scans PCB automatically through the camera, collects images, compares the tested solder joints with the qualified parameters in the database, after image processing, checks out the defects on the PCB, and displays/shows the defects through the display or Auto-marking for SMT process engineers to improve and SMT repairs.

AOI devices include:

1. Classified by structure are: simple manual offline AOI device, offline AOI device, online AOI device, etc.

2. Classified by resolution are: 0402 component AOI devices, 0201 component AOI devices

3. Classified by camera: single camera, dual camera, multi-camera, etc.

Types of errors that can be detected by AOI devices:

1. After brushing, before patch: bridging-shifting-tin-free-tin deficiency

2. Before reflow after patch: shift, leak, polarity, skew, foot bend, mistake

3. After reflux or peak soldering: less tin/more tin, no tin short solder ball leak-polarity-displacement foot bending error

4. Bare panel detection in PCB industry

Offline AOI device efficiency improvement

1. Cost savings and cost savings are the main capital savings projects to improve the efficiency of offline aoi. Demand for online AOI devices has decreased. Instead of spending a lot of money, add more expensive online AOI detectors because offline AOI already meets production needs.

2. Increasing production efficiency is a direct positive factor in plant management after increasing offline AOI efficiency. With increased efficiency, more batches of products will naturally be produced.

3. Shortening delivery time and improving product competitiveness are the direct manifestations of the improvement of AOI equipment efficiency in the market. As a professional supplier of AOI equipment in Shenzhen, this is a deep experience. Smt factories make money before they have the ability to purchase new equipment to ensure product quality.

Online AOI Detection Device

1. High degree of automation

A Production and testing are completed synchronously, and efficiency compares with offline AOI to reduce product testing turnaround time.

B Reduce personnel participation, from PCB to SMT production line, to full mechanized operation between PCB outflow, avoiding manual or semi-automatic low-productivity working mode.

C From raw materials to inspection, fully automatic process production process, in line with the Chinese concept of one step in place.

AOI Detection Device

Whether it is online or offline AOI device, the purpose is to improve the quality of SMT patches and avoid a large number of product defects. In order to save costs, some small PCBA manufacturers have omitted a lot of quality testing links, which can easily lead to the appearance of products.