Copper-based Printed Circuit Boards is the most expensive one in metal Core PCBs,Website:http://www.unioncircuits.com, but the thermal effect is much more better than Aluminum base or Iron-based PCBs, it's mostly used for high frequency circuits, high & low temperature variation region and advanced communication equipment cooling and building decoration industry.Key Specification                                                                  Layer Count1~2MaterialAluminum-based, 1W/m.K, 2W/m.K, 3W/m.K ~12W/m.KFinished Thickness1.0~3.2mmFinished Outer Cu Thickness1OZ, 2OZ, 3OZ, 4OZFinished Inner Cu ThicknessN/ASurface FinishLead-free HASL, Immersion Gold, OSPSoldermaskWhite, BlackSilkscreenBlack, WhitePanel Size30x1500mm(max)Attention: "These are the basic specifications we gonna to need for your Printed Circuit Board fabrication, if you need a quick quote or going to order soon, to save time please kindly provide all the fabrication details to us, of course if there were any other special requirements or details out of this specification, please also comment so we can consider it in our quotation."           --From Union Circuits Engineering dept.Product DetailsMOQ1 PieceProduction Lead Time5~15 Working Days Quick turn, 10~20 Working Days mass productionMin. Drill Hole Size0.5mmMin. Trace Width/Spacing5/5 milData FormatGerber RS-274-D/X, .pcb, .pcbdoc, .cam, ODB++, CADE-Test100% E-test(cost included in the Unit Price, NO extra charge)CertificationsUL, CUL, ISO9000, ISO14001, TS16949.StandardIPC-A-600G Class 2(default)ApplicationLED Lighting, communication, building decoration… PackingInner vacuum + foam, Outer carton boxShippingDHL(default), UPS, TNT, FedEx, EXW, FCA/FOB HongKong, By SeaPaymentT/T, PayPal, Western Union (USD, EUR)