SMT BGA X Ray machines Article by Parminder Singh And Joy Rong We define our SMT process on the basis so many assumptions, starting from Paste printing machine till reflow. In printer we set our parameters till we get good quality print, similarly for pick and place machine, till all the component is perfectly aligned, and then reflow we set the profile and run the PCB. And after reflow we do AOI and say perfect joints and start running the production. Wait here is where self deception comes into the picture let me explain? If you see a person with coat, pant and tie do you think he is an intelligent, soft spoken, mild hearted and polite by nature? No until or unless you meet him speak to him and judge his capabilities before that you cannot tell he is a right person or not? More over as the time passes you come to know that he has some good qualities and some bad qualities. Your product quality is good is self deception by the SMT manufacturer without X Ray machine ...
