what is impedance pcb board?a good laminated structure can act as a control of the printed circuit board characteristic impedance, its line can be easily controlled and predictable transmission line structures,we called it impedance board.PCB board SpecificationsPcb thickness:2.0mmLayer account:12LSurface finished:OSP+8group impedance controlLine width&space3/3milsFinished copper:1ozSolder mask:green;Material:FR4.Certificates:CQC,ISO.TS16949,SGS,ISO9001,UL,ISO.14001,ROHSDelivery time:sample 3-5days,mass production:12-15days;Package details:vacuum pcb,inside bubble all inside,cartoon,ties outside strengthening;the major factors affect the impedance of the PCBcopper line width, the thickness of the copper wire of copper, the thickness of the dielectric constant and dielectric medium, the thickness of the bonding pad, the path of the ground, line the perimeter of the walk the line.So when designing PCB must be carried out on the board walk line impedance control, to avoid possible signal reflection and other electromagnetic interference and signal integrity problems, can guarantee the stability of PCB's actual use.KDPCB pcb manufacturer engineers has over 10 years experience making impedance circuit boards,kdpcb never price oriented,only quality oriented,details oriented,all our material vendors is only the famous brand manufacturers such as KB group/ITEQ/ROGERS and others;kdpcb strive for our customers to feel that our service is so unique and valuable that they would want to work with us forever.KDPCB Advantages1--never set any moq for every pcb board order;2--shortest response for all clients need;3--reasonable competitive price with high quality;4--support "one-stop"service for part of clients;5--shortest delivery time on pcb board production;6--"5S"and ISO.TS16949 quality system control manufacture;7--professional,high communication,trustworthy;8--all kinds of pcb board manufacture are acceptable;9--TNT/UPS/DHL/FEDEX/special shipping agency support with lower price;We understand that 1)you want solutions support not always make trouble to you ,2)you want what you need and not what a boardhouse wants to sell you.application fieldMobile phone,wireless network electronics,base station electronics,2.4G radio and so on.GPS navigation,antenna amplifier,microwave communication module,wireless communication electronics and others telecommunications electronics.