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4 Layer Prototype Golden Finger PCB with UL US&Canada

MOQ:	1
가격:	Contact us
지불 조건:	t/t

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층:

4 레이어

기본 자료:

FR4

두께:

0.5 mm

구리 두께:

1.0 온스

보드 크기:

사용자 정의

민. 선 폭 / 공간:

0.10/0.10mm

표면 처리:

Enig/Immersion Gold

자격증:

UL, IATF16949, ISO & Reach

강조하다:

4 layer golden finger PCB

UL certified prototype PCB

US Canada compliant PCB

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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

Structure
- Located on the board edge; can be single- or double-sided
- 3-6 µm nickel under-layer + 30-100 µin (0.75-2.5 µm) hard gold (Au-Co or Au-Ni alloy)
- 20°-45° bevel is normally ground on the tip to ease insertion and reduce abrasion
Function
- Acts as a pluggable edge connector that can survive ≥1,000 insertion/removal cycles
- Provides excellent conductivity (<10 mΩ contact resistance) and long-term oxidation resistance
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
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
Layers	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 Suppliers	Shengyi, KB, Nanya, ITEQ,etc.