dc.description.abstract | PCB (printed circuit board) is tremendously increased due to highly developed of the industry. Also because electronic machinery application is rapidly expanded, PCB is widely used in many fields as in information, communication and network equipments.
Accompany with the convenience of mobile electronic products, the demand & spread of portable electronic products is steadily increasing. Product designs are tend to have lighter, thinner & smaller outline with high performance, density, reliability but lower cost. However the function of wireless & high frequency relies on promotion of electronic performance.
The unique development in groups of Taiwan PCB industry leads to a complete (including upstream, midstream and downstream) and flexible supply chain system. Output value & quantity are competitive on the global market. When productivity increases constantly but price contrarily keeps falling down 6% - 8% per year, under such circumstance, for Taiwan PCB industry to persist in the global market, raising production yield rate becomes the most immediate urgent element.
Raising production yield rate, we need to have good ability in manufacturing control. In manufacturing, inspection & control must be set up and effectively executed. The inspection figure is treated as feedback of reforming basis. So those products’ flaws caused by external factors can be improved and revised in time. That is why the inspection in manufacturing is too important but couldn’t be ignored.
Accompany with the development of the industry, map and standard are being renewed annually. Inspection equipments, electrical testing equipments and techniques in electronics industry are well developed. AOI and electrical testing equipments are most useful in distinguishing problem. So when demand of high quality (high frequency, high density, fine line circuit, multilayer & buried component) is increased, inspection equipments become essential. And it is very helpful in manufacturing control and quality improvement, and also to secure product reliability and eliminate possible problems.
This research with the case study approach, to pursue the low cost with high effective detection method, which could be the way for PCB manufacturing by upgrade production ability, increase production yield rate but lower the inspection cost to become the source of competitiveness in fact.
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