Name: Suzhou cycas Microelectronics Co., Ltd.
Address: 1st floor,B06 building,No.2,Fuxing Road,Zhangjiagang Economic Development Zone,Jiangsu Province 215600PRC
一. 是在恒溫箱中烘幹網版的時間太長或烘幹的溫度太高，兩者都可使塗布感光膠的網版在沒有曝光之前就產生“熱敏化” ，如果再曝光就產生過量曝光，因此，圖像難以顯透了。
In the process of making screen plate, sometimes the picture and text part of the etching technology of metal plasma etcher often appears the phenomenon of developing impervious. The main reasons are as follows:
first, the drying time of screen plate in the incubator is too long or the drying temperature is too high, both of which can make the screen plate coated with photosensitive adhesive produce "heat sensitivity" before it is exposed If re exposed, it will cause over exposure, so the image is difficult to show through.
Second、 In the coating of photoresist, due to the number of times of coating, coating and do not pay attention to the operation of avoiding light, resulting in multiple exposures, re exposure is difficult to show through the image.
Third、 The intensity of the light source is too large, and the exposure time is too long, which makes the development difficult. Sometimes the image contrast is too small, the exposure will produce overexposure, resulting in development difficulties.