Double sided pcb

SPECIFICATION OF PCBVendor to be UL recognized to minimum category of 94V0Fabricated in accordance with IPC-A-600,latest version unless otherwise specified in attached specification.All patterns according to Customer PCB Artwork/Film/Gerber File.Material:FR-4 We would provide a copy of UL materials certificate.This is a Single Layer Double Layer 4Layer OtherWeight of Copper: 1 oz per sq .ft(Base Material)for Outer Layers. Finish to be 2oz per sq.ft oz per sq.ft(Base Material)for Inner Layers.Finished Board thickness shall be(Tolerance is ±10%):0.8mm 1.0mm 1.2mm 1.6mm OtherFinishing according to IPC-TM-650(2.2.13)latest version.Via Method: PTH NPTH Blind Via between layerCarbon TH No crack, no unblocked holesSliver TH-Less than 30% of the front view area of the silver through hole unblocked.PCB must be identified with MFR’S approval logo, type designation week and year(WWYY) OF MFR and Customer P/NMFR’s UL Logo&indicated location According to PCB Drawing of Gerber dataDate code location: Print on Top/Bottom Side Silkscreen LayerEtch on Top/Bottom Side Copper Layer.Customer Part No.&Silkscreen Layers According to PCB Drawing or Gerber data indicated location.All PCB will be electrical tested before shipmentOther Test and Reliability standard refer to IPC-A-600(latest version)PCB Class1 Class2 Class 3As per ion-contamination test results.(IPC-TM-650 Test Method2.3.25)Finishing: HAL ENTEK Pre-flux Gold Flash Gold Plating Immersion TinImmersion Silver Immersion goldMin. hole size: 12mil or mm(Remark: The minimum hole size are for drill bit size)Legend Silkscreen: Top or Bottom sideLegend marking do not allow printed on soldering pad and must keep clearance 10 mil min,leave to the soldering padSilkscreen color: White Yellow BlackWe will provide specification & Materail Safety Data Sheet(MSDS) of legend inkSoldermask: Wet film Dry film Conventional PeelablePlug all via holes by soldermask on Top Side or Bottom SideSoldermask color: Green Blue Yellow Red OtherFabrication: Routing Punching HandmadeAll sample board and risk buy order will be acceptable for routingPCB Unit/Panel size:163.3X215.6inch/mmComply RoHS standardPacking: PCB must be cleaned and dried to insure storage for 180 days in the unit package without corrosion, visible fingerprints, oxidation, mold or loss of solder ability. All boards shall be packaged in such a manner as to prevent board-to-board damage and/or damage from external cause. Paper interleaving is preferred, and if used, must be free of sulfites and other materials which will contaminate the board surface.