BICHENG ENTERPRISE LIMITED

Specialized in heavy copper PCBs for 15 years

High Frequency PCB | Metal Core PCB | Flexible PCB

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Multilayer PCB

Customer Reviews
Kevin, Received and tested the boards - thanks very much. These are perfect, exactly what we needed. rgds Rich

—— Rich Rickett

Ruth, I got the PCB today, and they are just perfect. Please stay a little patience, my next order is coming soon. Kind regards from Hamburg Olaf

—— Olaf Kühnhold

Hi Natalie. It was perfect, I attach some pictures for your reference. And I send you next 2 projects to budget. Thanks a lot again

—— Seba T.

Kevin, Thanks, they were perfectly made, and work well. As promised, here are the links for my latest project, using the PCBs you manufactured for me:

—— Daniel F

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Multilayer PCB

  • High Precision Multilayer PCB suppliers
  • High Precision Multilayer PCB suppliers
  • High Precision Multilayer PCB suppliers
  • High Precision Multilayer PCB suppliers
  • High Precision Multilayer PCB suppliers

General Profile

Multilayer PCB's represent one of the most complicated products in the PCB industry. A breakdown of a multilayer PCB shows that it consists of three basic elements: thin rigid laminates, prepreg sheet for bonding the laminates and copper foils.

 

Purpose of Multilayer PCBs

1) To accommodate a larger number of interconnections that steadily increasing use of high pin-count integrated circuits(IC).

 

2) To establish an electrical performance of the multilayer PCB, such as voltage and ground planes, EMC-shielding and circuit speed etc.

 

Layer Stackup

The purpose of stackup is to interleave the thin laminates and the prepreg sheets in correct sequence and ensure correct layer-to-layer registration. The stackup of multilayer boards can be done in many different ways.

 

The process of multilayer PCB

1) In general, a multilayer board consists of a number of very thin print-and-etch inner layers, but drilling of holes has not been carried out. Outer layers of the multilayer board remain unetched.

 

2) Layers from top to bottom are bonded together in close registration by means of thin plies of prepreg. The bonding is performed under close temperature and pressure control in a lamination press.

 

3) After lamination, they are the processed in very much the same way as an ordinary double-sided PTH boards, i.e. holes are drilled, cleaned and plated. Outer layers are etched to develop the circuit pattern. Solder masks are applied and solder coating (HAS, ENIG etc) is performed.

 

Thin laminate (base masterial FR-4)

Vendor Model Thickness Copper TG ER
SHENGYI S1141 0.05-3.2 mm 17-105 μm ≥130 ≤5.4
SHENGYI S1170 0.05-3.2 mm 17-105 μm ≥170 ≤5.4
ITEQ IT-140 0.05-1.5 mm 17-175 μm >135 <5.4
ITEQ IT-180 0.05-1.5 mm 17-175 μm >170 <5.4
ITEQ IT-180A 0.05-1.5 mm 17-175 μm >170 <5.4

 

Comparison of different Prepreg.

Type of Prepreg Finished Thickness Resin Content
  mm mil %
7628H(7630) 0.213 8.4 50
7628(43%) 0.195 7.6 43
7628(41%) 0.185 7.3 41
2116HR 0.135 5.3 57
2116 0.120 4.7 52
2113 0.100 4.0 56
1080 0.076 3.0 64
1060 0.050 2.0 71

 

 

Multilayer PCB

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Good Quality High Temperature Multilayer golden PCB on FR-4 with 8 Layers Copper Track Suppliers

High Temperature Multilayer golden PCB on FR-4 with 8 Layers Copper Track

Product profile 1.1 General description This is a type of 8 layer printed circuit board built on FR-4 Tg180 substrate for the application of Satellite Radio. It's 1.6 mm thick with white silkscreen(Taiyo) on ... Read More
2018-12-11 16:11:55
Good Quality Gold Finger PCB (Edge Connector) On 8 Layer Copper With Tg 170 FR-4 Suppliers

Gold Finger PCB (Edge Connector) On 8 Layer Copper With Tg 170 FR-4

Product profile 1.1 General description This is a type of 8 layer printed circuit board built on FR-4 substrate with Tg 170C for the application of Mobile Broadband. It's 1.6 mm thick with white silkscreen... Read More
2018-12-10 09:04:34
Good Quality Multilayer PCB On 2.12mm FR-4 Of 6 Layer Copper With HASL RoHS Compliance Suppliers

Multilayer PCB On 2.12mm FR-4 Of 6 Layer Copper With HASL RoHS Compliance

Product profile 1.1 General description This is a type of 6 layer printed circuit board built on FR-4 substrate with Tg 150C for the application of GPS Systems. It's 2.12 mm thick built on thick prepreg (more ... Read More
2018-12-03 09:09:57
Good Quality Prototype PCB With 6 Layer Copper and IPC III Standard with Green Soldermask Suppliers

Prototype PCB With 6 Layer Copper and IPC III Standard with Green Soldermask

Product profile 1.1 General description This is a type of 6 layer prototype board built on FR-4 substrate with Tg 135C for the application of Modem WiFi. It's 1.6 mm thick with white silkscreen(Taiyo) on green ... Read More
2018-11-26 10:02:35
Good Quality Multilayer PCB Built on FR-4 With 4 Layer Copper For Wireless HDMI Transmitter Suppliers

Multilayer PCB Built on FR-4 With 4 Layer Copper For Wireless HDMI Transmitter

Product profile 1.1 General description This is a type of multilayer PCB built on FR-4 substrate with Tg 135C for the application of Wireless HDMI Transmitter. It's 1.6 mm thick with white silkscreen(Taiyo) on ... Read More
2018-09-10 10:03:45
Good Quality 6 Layer HASL PCB Built On FR-4 With Green Solder Mask Suppliers

6 Layer HASL PCB Built On FR-4 With Green Solder Mask

Product profile 1.1 General description This is a type of multilayer PCB built on FR-4 substrate with Tg 150C for the application of Portable PA Systems. It's standard 1.60 mm thick, white silkscreen over ... Read More
2018-08-20 09:35:31
Good Quality 4 layer PCB Built On FR-4 With 2 oz for each Layer and 4 microns Gold on Pads Suppliers

4 layer PCB Built On FR-4 With 2 oz for each Layer and 4 microns Gold on Pads

Product profile 1.1 General description This is a type of multilayer PCB built on FR-4 substrate with Tg 150C for the application of Power Supply Switch. It's standard 1.60 mm thick, white silkscreen over ... Read More
2018-08-13 09:12:07
Good Quality Multilayer PCB Built On Mid-Tg With Black Color On 4 Layer Copper Suppliers

Multilayer PCB Built On Mid-Tg With Black Color On 4 Layer Copper

Product profile 1.1 General description This is a type of multilayer PCB built on FR-4 substrate with Tg 150C for the application of telemetry system. It's 1.6 mm thick with white silkscreen (Taiyo) on black ... Read More
2018-08-06 09:46:35
Good Quality Multilayer PCB Built On Mid-Tg FR4 With V-cut in Panel Form Suppliers

Multilayer PCB Built On Mid-Tg FR4 With V-cut in Panel Form

Product profile 1.1 General description This is a type of multilayer PCB built on FR-4 substrate with Tg 150C for the application of Monitoring Systems. It's 1.6 mm thick with white silkscreen (Taiyo) on green ... Read More
2018-08-06 09:39:56
Good Quality 24 Layer PCB Built On High Temperature FR4 With 50 Ohm / 100 Ohm Impedance Control Suppliers

24 Layer PCB Built On High Temperature FR4 With 50 Ohm / 100 Ohm Impedance Control

Product profile 1.1 General description This is a type of high multilayer PCB built on FR-4 substrate with Tg 170C for the application of Industrial controls with 24 layer copper track. It's 3.7 mm thick with ... Read More
2018-07-30 10:08:40
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