DQS Electronic Co., Limited
| Payment Terms | T/T |
| Layer | 4 Layer |
| Base Material | Fr4 |
| Thickness | 0.5 mm |
| Copper Thickness | 1.0 OZ |
| Board Size | Customized |
| Min. Line Width/Space | 0.10/0.10mm |
| Surface Treatment | ENIG/Immersion Gold |
| Certificate | UL,IATF16949,ISO&Reach |
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Product Specification
| Payment Terms | T/T | Layer | 4 Layer |
| Base Material | Fr4 | Thickness | 0.5 mm |
| Copper Thickness | 1.0 OZ | Board Size | Customized |
| Min. Line Width/Space | 0.10/0.10mm | Surface Treatment | ENIG/Immersion Gold |
| Certificate | UL,IATF16949,ISO&Reach | ||
| High Light | 4 layer golden finger PCB ，UL certified prototype PCB ，US Canada compliant PCB | ||
4 Layer Prototype Golden Finger PCB with UL US&Canada
♦ What's Golden Finger PCB?
Golden Finger PCB refers to a printed-circuit board whose edge carries a row of gold-plated contact pads. These pads (the “fingers”) are inserted into a mating connector to provide a low-resistance, corrosion-free, high-wear path for power and high-speed signals between boards or sub-systems.
♦ Key Points of Gold Finger PCB?
1. Structure
2. Function
3. Typical uses
RAM modules (DDR4/DDR5), graphic cards, PCIe cards, disk-drive carriers, industrial backplanes, USB sticks, smart-card sockets—any application where a sub-board must be quickly and repeatedly connected to a motherboard or backplane
4. Manufacturing note
After solder-mask, only the finger area is exposed; nickel is electroplated first, then hard gold; finally the edge is bevelled. The rest of the board can receive any normal surface finish (ENIG, OSP, etc.)
♦ Technical Parameters
| Item | Specification |
| Laers | 1~64 |
| Board thickness | 0.1mm-10.0mm |
| Material | FR-4,CEM-1/CEM-3,PI,High Tg,Rogers |
| Max panel size | 32"×48"(800mm×1200mm) |
| Min hole size | 0.075mm |
| Min line width | 3mil(0.075mm) |
| Surface finish | OSP,HASL,Imm Gold/Nickel/Ag, Electric gold |
| Copper thickness | 0.5-15 OZ |
| Soldermask | Green/Yellow/Black/White/Red/Blue |
| Silkscreen | Red/Yellow/Black/White |
| Min PAD | 5mil(0.13mm) |
| Inter package | Vacuum |
| Outer package | Carton |
| Outline tolerance | ±0.75mm |
| Hole tolerance | PTH:±0.05 NPTH:±0.025 |
| Certificate | UL,ISO 9001,ISO14001,IATF16949 |
| Special request | Blind hole+Gold finger + BGA |
| Material Suppilers | Shengyi, KB, Nanya, ITEQ,etc. |
Company Details
Business Type:
Manufacturer
Employee Number:
>800
Ecer Certification：
Verified Supplier
DQS Electronic is located in Shenzhen, focusing on PCB Layout Design, PCB Fabrication, Electronic Components Sourcing, SMT, PCB Assembly and Testing. We are a one-stop EMS electronic manufacturing company committed to providing global customers with rapid prototyping and mass production. Our produ... DQS Electronic is located in Shenzhen, focusing on PCB Layout Design, PCB Fabrication, Electronic Components Sourcing, SMT, PCB Assembly and Testing. We are a one-stop EMS electronic manufacturing company committed to providing global customers with rapid prototyping and mass production. Our produ...
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