Multilayer

Multilayer PCB Definition

Multilayer PCB generally stands for a printed circuit board with more than 2 layers, between which circuits are conductive by copper platting holes. Multilayer PCB manufacturing process is more complex, because workers have to go through full procedures (including cutting, exposure, etching, drilling etc.) and then laminate substrates one by one. In this way, it takes long time to complete all steps of multilayer PCB fabrication. More significantly, to make multilayer PCB brings high challenges to PCB manufacturer, particularly in terms of small trace/spacing, drilling hole size, HDI, impedance controlled and other special specifications.

multilayer pcb stack

PCBBox Multilayer PCB Services

PCBBox has plenty experiences of making multilayer PCB during past decades. We highly pay attention to facilities improvement, management workflow optimization, periodically training and complex boards study. Our main target is to handle multilayer PCBs for developed and developing countries including USA, United Kingdom, Russia, France, Turkey, Mexico, Brazil, Columbia, Japan, Korea, UAE etc. PCBBox served industries of solar power, communication, system control, medical instrument, aerospace, robotics, IOT, smart home, and wearable devices.

pcb

How PCBBox Controls Quality of Multilayer PCB Fabrication

PCBBox always takes business concept of offering good quality products and make customers live better, so we select A+ laminate (such Rogers) at the very beginning. There are 3 crucial quality control stations: IQC (Incoming Quality Control), IPQC (In-Process Quality Control) and OQA (Outgoing Quality Control) internally. Importantly, we also take more strict criteria to implement checks. In terms of factory facilities, we have been invested to import advanced machines, with higher precision and efficiency.

pcb quality control process

Public Cost and Lead Time Table of Multilayer PCBs (Standard)

Laminate

Layer(s)

USD/square meter

Lead Time
(days)

Laminate
Thickness

Copper thickness

Surface
Finish

Cert. / Qualifications

IPC Class 2 - A600

FR-4

4

$136.00

7

≤1.6mm

1oz

HASL

Trace / Space

5 / 5 Mils

FR-4

6

$196.00

7

≤1.6mm

1oz

HASL

Min. Hole Size

0.012"

FR-4

8

$227.00

10

≤2mm

1oz

HASL

Hole Tolerance

+/- 0.005"

FR-4

10

$302.00

10

≤2mm

1oz

HASL

Rout Tolerance

+/- 0.010"

FR-4

12

$347.00

15

≤2mm

1oz

HASL

UL Markings/Dates

Yes

FR-4

14

$423.00

15

≤4mm

1oz

HASL

Lead-Free Markings

Yes

FR-4

16

$498.00

20

≤4mm

1oz

HASL

Fiducials

Yes

FR-4

18

$604.00

20

≤4mm

1oz

HASL

Hole

2L  100K/square meter

FR-4

20

$755.00

20

≤4mm

1oz

HASL

Hole

>2L 120K/quare meter

In order to get accurate quote of multilayer PCB, please kindly send your design files to our email address: sales@pcbbox.com