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| Product Name: |
Standard PCB
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standard pcb, China, manufacturers, suppliers, factory, wholesale |
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| Jetek-Pcb Co.,Limited is one of the leading China standard pcb manufacturers and suppliers,Website:http://www.jetekpcb.com, welcome to wholesale standard pcb from our factory.product nameStandard 4 layer PCB Product SpecificationsFR-4 1.6MM 1/1/1/1OZStandard green solder mask/White silkscreen, HASL product descriptionBoard material: FR-4 TG�30Board thickness: 1.6mmPCB Layers: 4 layersCopper thickness: 2ozSurface finishing: HASLSolder mask: GreenSilk screen: WHITEMin line width: 0.20mmMin line ***cing: 0.20mmMin hole size: 0.45Impedance control: NoBuried and blind holes: NoSpecial process: No * All products approved by ISO9001/TS16949 and UL certificate* High quality products on Easy & safely way* Quick turn & Reasonable price & excellent quality & Professional service* Paypal payment for secure client's funds* 100% open/shorted testing   Product TipsGold �Hard GoldHard Electrolytic Gold consists of a layer of gold plated over a barrier coat of nickel. Hard gold is extremely durable, and is most commonly applied to high-wear areas such as edge connector fingers and keypads.Unlike ENIG, its thickness can vary by controlling the duration of the plating cycle, although the typical minimum values for fingers are 30 μin gold over 100 μin nickel for Class 1 and Class 2, 50 μin gold over 100 μin nickel for Class 3.Hard gold is not generally applied to solderable areas, because of its high cost and its relatively poor solderability. The maximum thickness that IPC considers to be solderable is 17.8 μin, so if this type of gold must be used on surfaces to be soldered, the recommended nominal thickness should be about 5-10 μin.Advantages:Hard, Durable SurfaceNo PbLong Shelf LifeDisadvantages:Very ExpensiveExtra Processing / Labor IntensiveUse of Resist / TapePlating / Bus Bars requiredDemarcationDifficulty with Other Surface FinishesEtching Undercut can Lead to Slivering / FlakingNot Solderable Above 17 μinFinish Does Not Fully Encapsulate Trace Sidewalls, Except in Finger Areas Co***ny ProfileWe know almo |
| Company: |
JETEK-PCB CO.,LIMITED
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| Contact: |
Ms. Ivan Mao |
| Address: |
Lisheng Industry park, Tangwei Village, Fuyong Town, Ban'an Distriet, Shenzhen City, Guangdong Province, P.R.C |
| Postcode: |
518000 |
| Tel: |
86-0755-29237512 |
| Fax: |
86-0755-29070343 |
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