4 Layer Immersion Gold PCB
Layer：4 layer
Material： FR-4
Board Thickness: 1.6mm
Size : 200mm*110mm
Surface Finish：Immersion Gold
Immersion gold is a process that applies a very thin layer of gold with displacement of the surface atoms. It means the coating of immersion gold PCB is not very thick, and it can be used for extending the shelf life of parts waiting for soldering operations because of corrosion resistance. Immersion gold has been applied in aluminum and gold wire bonding and PCB fabrication. But it can’t be used to take place electrolytic gold plating because its thickness and adhesion are limited compared to a standard electroplated gold.
| Item | Capability |
|---|---|
| Layers | 1-30 |
| Thicker Copper | 1-6OZ |
| Products Type | HF(High-Frequency)&(Radio Frequency) board, Impedance controlled board , HDI board ,
BGA& Fine Pitch board |
| Solder Mask | Nanya&Taiyo ;LPI & Matt Red, green, yellow,white, blue,black. |
| Base material | FR4(Shengyi China、ITEQ, KB A+,HZ), HI-TG, FR06, Rogers,Taconic、Argon and so on |
| Finished Surface | Conventional HASL,Lead-free HASL,Falsh Gold, ENIG (Immersion Gold)OSP(Entek), Immersion Tin,ImmersionSilver,Hard Gold |
| Selective Surface Treatment | ENIG(immersion Gold)+OSP, ENIG(immersion Gold)+Gold Finger,Flash Gold +Gold Finger,
immersion Silver+ Gold Finger, Immersion Tin+Gold Finger |
| Technical Specification | Minimum line width/gap:3.5/4mil(laser drill) Minimum hole size:0.15mm(mechanical drill)/4mil(laser drill) Minimum Annular Ring: 4mil Max Copper thickness: 6OZ Max Production size:900×1200mm Board Thickness:D/S: 0.2-7.0mm, Multilayers:0.40-7.0mm, Min Solder Mask Bridge:0.08mm Aspect ratio: 15:1 Plugging Visa capability: 0.2-0.8mm |
| Tolerance | Plated holes Tolerance:0.08mm(min±0.05) Non-plated hole tolerance:0.05min(min+0/-0.05mm or +0.05/-0mm) Outline Tolerance:0.15min(min±0.10mm) Functional test : Insulating resistance : 50 ohms (mormality) Peel off strength: 1.4N/mm Thermal Stress test :2650c,20 seconds Solder mask hardness:6H E-Test voltage :500V+15/-0V 30S Warp and Twist: 0.7% (semiconductor test board≤0.3% ) |
