SMT X-ray inspection NDT Non Destructive Testing

Family of x ray machine & BGA rework Our have two company: One is Shenzhen Zhuomao：  www.seamarkzm.com ( BGA rework station )Another one is Seamark ZM： www.seamarkxray.com （ x-ray machine ) We start to manufacturing since 2004, sale since 2005. engineer about 20 people. total about 100 people.  We marketed about x ray market, main market is USA, UK, Mexico, China, India( Asia ), France, Germany ( mainly for factory ). These country have manufacturing factory, In addition, third-party testing centers, laboratories, etc. will use x ray. 1. What is your AS （ After-sale service ）policy? About AS, 365 days warranty, Zhuomao will offer free spare parts and service within 1 year of warranty, Permanent technical service. Free training on buyer'company. As you have support company, our suggestion is learn machine when our engineer training the buyer engineer, for the further order, support can be provide by your company, The price we negotiate it...

With the development of high-level and high-precision PCB boards, the accuracy of the alignment between layers has become more stringent, and the PCB board skew problem has become more serious. There are many reasons for the PCB layer bias. Now we share with you the main influencing factors of the layer deviation phenomenon. D efinition of PCB layer bias: Tier bias refers to the difference in concentricity between layers of PCB board that originally requires alignment. The scope of requirements is regulated according to the design requirements of different PCB types. The smaller the hole-to-copper spacing, the stricter the control is to ensure its ability to conduct and over-current. Commonly methods for detecting layer deviations in the production process: The current method commonly used in the industry is to add a group of concentric circles at each corner of the production board, and set the spacing between concentric circles according to the requirements of the produc...