Multilayer PCB Circuit Board

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Multilayer PCB Circuit Board

Multilayer PCB or multilayer printed circuit board is a circuit board composed of two or more conductive layers (copper layers). Multilayer PCB can be divided into Multilayer Rigid PCB, Multilayer Flexible PCB, Multilayer Rigid-flex PCB. The copper layer is pressed together by the resin layer (prepreg). Due to the complexity of the multilayer PCB manufacturing process, low yield and difficulty in rework, their prices are relatively higher than single-layer and double-sided PCBs.

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Multilayer PCB or multilayer printed circuit boards is a circuit board composed of two or more conductive layers (copper layers). Multilayer PCB can be divided into Multilayer Rigid PCB, Multilayer Flexible PCB, Multilayer Rigid-flex PCB. The copper layer is pressed together by the resin layer (prepreg). Due to the complexity of the multilayer PCB manufacturing process, low yield and difficulty in rework, their prices are relatively higher than single-layer and double-sided PCBs.

FASTPCBA manufactures up to 48 layers of multi-layer PCB, accepting pure single material or mixed pressing materials: Fr4, Rogers, Polymide, metal core etc.

Multilayer PCB_

Multilayer Printed Circuit Boards Capability :

Item	Type	Normal Manufacturing Capability
Avalibale Material	Normal FR4	S1141,S1155(Halogen free)
	Hi TG FR4	ITEQ IT180A , TU768 ,S1000-2M ,S1165(Halogen free),Megtron-6,Megtron-4,NP-180A,VT-47 , TU872, PCL370HR,FR408,FR408HR
	Others	Rogers4350B,Rogers4003C,FTG8000, RT5880
PCB Type	Rigid PCB	Multilayer layer, HDI,Backplane,Blind and Buired PCB,Rigid flex, flex, Heavy copper pcb,Back drill,Semiconductor test board.
PCB Type	Layer Count	1-50 layer for prototype, 1-30 layer for production
Surface Treatment	Lead Free	HASL lead Free, ENIG, Immersion silver, Immersion Tin,OSP,HARD GOLD,Soft Gold,Gold finger, ENEPIG
Surface Treatment	Lead	Leaded HASL
Board Thickness		8-275mil
Board Thickness Tol.		<=40mil +/-4mil ; >40mil +/-10%
Min.Line Width&Spacing		2/2mil
Copper Thickness		0.33 OZ -15 OZ
Min. Pitch		0.35mm
Min. Board size		0.4 inch *0.4 inch
Max. Board size		23 inch *35 inch
Laminations	Blind&buired via	<= 4 times lamination
Laminations	HDI with laser via	1+n+1;1+1+n+1+1;2+n+2;3+n+3;4+n+4;5+n+5
	Min. Laser drill	4mil(0.1mm)

	Min. Mechanical drill size	6mil(0.15mm)
	Hole Registration	+/-3mil
	PTH Hole Tol.	+/-2mil
	NPTH Hole Tol.	+0/-2mil or +2/-0mil
	Max aspect ratio	30:1
	Depth Tol. Of backdrill	+/-4mil
	CounterSink	82° ,90°,120°,135°
Impedance Control	Single end	+/-5 OHM(<=50 OHM),Advance +/-5%
	Differential Pair	<=50 OHM +/-5 OHM , >50 ohm +/-10% , Advance +/-5%
Outline size Tolerance		+/-4mil
Outline location Tolerance		+/-4mil
Min. Bow&Twist		Advance 0.1%
Solder mask color		Green Glossy , Blue , green Matte , Red, Yellow ,White ,Purple
Min. Solder mask Birdge		4mil(Green), 5mil(other color)
Silkscreen Color		White, Black,Yellow
Gold finger Bevelling Tol.		+/-5°
Min. Resistance Test		10 OHM
MAX Insulation resistance Test		100 OHM
MAX Test Voltage		500V
MAX Test Currency		200mA

Benefits of Multilayer PCBs (compared to single or double-sided PCBs)
Higher assembly density
Smaller size (considerable savings on space)
Increased flexibility
Easier incorporation controlled impedance features.
EMI shielding through careful placement of power and ground layers.
Reduces the need for interconnection wiring harnesses (reduces overall weight)

What are Multilayer PCBs used for?
Multilayer PCBs are particularly useful in the aerospace industry because they take up little room and are lightweight. They can also be found in cell phone repeaters, heart monitors, x-ray equipment, fiber optic receptors, industrial controls, automotive industry, atomic accelerators, nuclear detection systems and space probes.
Multilayer PCBs are also utilized in applications where crosstalk levels—electric or magnetic disturbance affecting the signal of an adjacent circuit—must be minimized.

FASTPCBA is an Experienced Multilayer PCB Manufacturer
FASTPCBA has been producing Multilayer PCBs for over 20 years, our skilled team members have the knowledge and experience to handle your multilayer PCB needs. we have solved all types of problems with multilayer PCBs from various industries.

To speak to us about your project, contact FASTPCBA today!