We have discussed the subject of blind bias and buried Vias. This paper also related to those two HDI PCB holes. But different definition introduce before, we want to introduce different topics about blind bias and buried vias. You know the technology of the blind was buried Vias are more than decades developing. Some HDI […]
Category Archives: Blog
Why we discuss buried Vias? We have discussed some topic of blind was in the previous paper. Then Emma will introduce some topic about buried Via. Most green hands don’t know those two definitions, that’s the reason why Emma recommended read two articles together. The definition of Buried Vias A buried via is a via […]
Why we discuss the blind Via? There were some friends ask blind Via PCB questions. Most of them from conventional PCB engineers, don’t know much technology about high density printed circuit board, also named HDI PCB. So, blind Vias realted to place HDI PCB order . Then 4MCPCB want to introduce more kinds of PCB […]
Previous post we have discussed the solder mask costing process. Our rigid PCB experts told Emma, there were some other steps to finish the solder mask. So this paper will discuss some related theory of solder mask process. Imaged the coated panels of solder mask The imaged method through drawer UV printer. If you have […]
Two aims of rigid PCB soldermask process You know most rigid PCB has an epoxy-ink solder mask printed onto each side. The firstly aim is protecting the copper surface of rigid PCB. Because the copper surface may be damaged in some bad situation. The secondly aim is to prevent solder shorting between components during assembly […]
In this paper we are going to discuss Gold Nickel Plated. Some guys also named this surface finish as electroless gold over nickel. It’s can meet RoHS compliant surface finishes. Why we need Plated Gold Nickel on the rigid PCB? You know the copper component pads and holes surface is the key factor of the […]
Don’t miss more posts by 4MCPCB experts plated hard gold process Hard Gold plating technology Advantages of Hard Gold Plated Disadvantages of Hard Gold Plated surface finish surface finish selection Why should discuss the surface finish selection guidelines? First of all we should know every surface finish have each own benefit, and have unique applications. […]
Don’t miss more posts by 4MCPCB experts plated hard gold process Hard Gold plating technology Advantages of Hard Gold Plated Disadvantages of Hard Gold Plated surface finish surface finish selection Why we discuss disadvantages of Hard Gold Plated surface finish? First of all Emma wants to cleat that 4MCPCB not against this surface finish technology. […]
Don’t miss more posts by 4MCPCB experts plated hard gold process Hard Gold plating technology Advantages of Hard Gold Plated Disadvantages of Hard Gold Plated surface finish surface finish selection In previous articles we have introduced the Hard Gold Plated technology. In this paper, we are going to discuss the advantages of Hard Gold Plated. […]
Don’t miss more posts by 4MCPCB experts plated hard gold process Hard Gold plating technology Advantages of Hard Gold Plated Disadvantages of Hard Gold Plated surface finish surface finish selection The definition of the hard gold plating First of all we should know what is the hard gold plating. Hard Electrolytic Gold is a layer […]