Views:38 Author:Site Editor Publish Time: 2016-05-18 Origin:Site
LHDPCB Manufacturing Multi-layer PCB (Up to 32 Layers)
HUIZHOU LINGHANGDA TECHNOLOGY CO.LTD is one of the world-leading high-precision multi-layer printed circuit board manufacturer. The demand for multi-layer boards has been on the rise. and will be more and more popular in the near future. The drive for electronics to be smaller, faster, and more powerful has made the multi-layer PCB much more popular. The ability to create multi-layer boards opens up a world of possibilities allowing the engineer to create more densely populated circuit boards which allows miniaturization. This is a huge benefit that double-sided boards are not able to offer.
Multi-layer PCB are only a little different that the Double Sided PCB. That are widely applied in communication, industrial control, power electronics, medical instrument, security electronics,aerospace and so on.
Multi Layer PCB Stack up As you can see in the image to the right, a four-layer board starts with a rigid core of FR4 and copper. The internal core is processed for traces on those prior to the other fiberglass and copper being added, and the entire board is laminated together.
There is the B stage PreP reg, which is fiberglass that is still soft that will need to be heated in order to become rigid. It acts like a glue to keep the inner core adhered to the outer copper foil.
The copper foil added consists of very thin and loose sheets of copper. They are sandwiched together with the Prep reg and inner core, and placed in a PCB Lamination Press. Pressure and heat are applied to the material, which causes the Prep reg to “flow” and bind the layers together. Once it cools, the fiberglass is then hard and the entire board is very rigid.
That gives the basics of the starting material for a Double Sided PCB and Multi Layer PCB. Is it what you expected or thought it would be?
LHDPCB manufacturing High -Tech muti-layer pcb, have more than 14 years on the muti-layer pcb field.