In order to enhance the ability to trace products, a variety of strings of significance has been popularized to today's life and production. Such as electronic components, S M T string on the production line has become the standard process of circulation.

IC chip surface has a lot of characters, including the manufacturer name, serial number, these characters for the manufacture and application of the chip is of great significance. At present, the IC chip surface character recognition technology research is less, many by artificial visual completion, by human factors, prone to missed, false detection, slow and so on.