Pcb Uk
RushPCB is the best PCB manufacturing assembly in UK for PCB turnkey solution. We are a professional printed circuit board manufacturer and Assembly in UK .
Visit here :- https://www.rushpcb.co.uk/
We also address the specialty orders that involve superior layer count and use of unconventional materials. RUSH PCB does not put the badge of ‘Best Printed Circuit Boards in UK’ for no reason.
With hundreds of satisfied clients all over UK and around the globe, we know how to put innovation and engineering on a printed circuit board of any kind. Our exceptional range of services includes, but is not limited to, Prototype PCB manufacturing, PCB assembly, Flex and Rigid PCB , Blind and Buried Vias and PCB Turnkey
GET YOUR PCB DESIGN IN UK FROM THE FINEST PCB MANUFACTURER We believe in employing a fantastically skilled yet forward-thinking team of engineers that not only understands the demands and challenges of modern PCB manufacturing but also possesses the ability to convert plans into act of perfection.
With RUSH PCB, our clients get the most flexible and resourcefulbunch of people eagerly waiting to fulfill or even exceed their expectations.AT RUSH PCB, CIRCUIT BOARD TECHNOLOGY COMES ALIVE Send in your designs today with our user friendly ordering process and RUSH PCB will get back to you with a working prototype in no time.
This involves facing numerous challenges such as improving the density of PCBs, miniaturizing them, and searching of ways to make them suitable for the high speeds our customers want.
All this means we must explore beyond the traditional methods of manufacturing technology to meet the newer requirements for these PCBs.
Traditional PCB Manufacturing
Traditional double-sided PCB manufacturing begins with blanking the copper clad laminate and cleaning the copper surface. The fabricator then drills the board according to the drilling information in the Gerber files, and plating the entire panel to create plated through holes. The fabricator then coats both copper surfaces with a photoresist, covers them with negative patterns of the traces, and exposes the board to a specific wavelength range of UV light. This helps to polymerize the exposed photoresist.
The fabricator then removes the negative patterns and proceeds to develop the photoresist, a process that removes the unexposed photoresist from the board, leaving the exposed photoresist as a hard layer on the copper. The fabricator then proceeds to plate the exposed copper with a thin layer of copper and tin.
In the next stage, the fabricator strips off the hard resist layer and removes the exposed copper by etching. He/she then removes the tin layer, exposing and retaining only the required copper traces. The rest of the process then follows, namely, solder mask printing and surface treatment.
Disadvantages of Traditional PCB Manufacturing Techniques
The major disadvantage of the traditional methods of PCB manufacturing is they do not allow fabrication of very thin and closely spaced traces as modern PCBs demand. It is difficult for the fabricator to control the etching process to create evenly spaced traces when the trace and space width is below a certain level. For instance, Rush PCB makes High Density Interconnect (HDI) boards with trace widths and spacing of less than 100 µm, which is very difficult to achieve by the traditional methods of PCB manufacturing. For making HDI boards, Rush PCB uses modern techniques such as electrodeposition photoresist.
The fabricator at Rush PCB begins the process by coating the laminate with a thin layer of copper seed layer. Next, the surface of the PCB undergoes a coating with a photoresist using the photolithography technique. The fabricator then exposes the resist to ultraviolet light through a patterned photomask and dissolves the exposed areas. This results in a patterned insulating film on the PCB surface exposing the seed layer on the bottom of the pattern.
pcb
The fabricator then subjects the PCB to an electroplating process by submerging it into an electroplating bath using copper anodes. As the seed layer is the cathode, passing an electric current through the system results in copper depositing on the seed layer. The thickness of the deposited layer depends on the current density at various positions on the seed layer over time. This way, solid copper fills the cavities in the patterned photoresist, while the fabricator maintains the plating rate by controlling the current density.
Contact US :-
USA Office:
Rush PCB Inc, 2149-20 O’Toole Ave, San Jose, CA 95131, USA
Call @ 408 496 6013
sales@rushpcb.co.uk
mehraj@rushpcb.co.uk
rushpcb.uk@gmail.com
