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

(93)
Good Quality Multilayer PCB Built On RO4350B With Blind Via from Top to Inner Layer Suppliers

Multilayer PCB Built On RO4350B With Blind Via from Top to Inner Layer

1.1 General Description This is a type of 4 layer HDI high frequency multilayer PCB built on RO4350B with RO4450B prepreg for the application of radar RF board. It's 1.0 mm thick with white silkscreen (Taiyo) ... Read More
2018-12-29 15:33:00
Good Quality Red PCB Built On FR-4 with 8 Layer 2.0mm thick board with 1 oz Copper and OSP Suppliers

Red PCB Built On FR-4 with 8 Layer 2.0mm thick board with 1 oz Copper and OSP

Product profile 1.1 General description This is a type of 8 layer printed circuit board built on FR-4 substrate with Tg 135C for the application of GPS System. It's 2.0 mm thick with white silkscreen(Taiyo) on ... Read More
2018-12-29 15:28:23
Good Quality Multilayer PCB Built On RO4350B With Green Solder Mask and Immersion Gold Suppliers

Multilayer PCB Built On RO4350B With Green Solder Mask and Immersion Gold

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 ... Read More
2018-12-28 18:33:00
Good Quality Multilayer PCB Built On FR4 With 6 Layer Copper Layer and HASL Lead Free Suppliers

Multilayer PCB Built On FR4 With 6 Layer Copper Layer and HASL Lead Free

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 Fiber optic receptors. It's 1.6 mm thick with white silkscreen(Taiyo) on ... Read More
2018-12-24 08:57:52
Good Quality Multilayer PCB on 4 Layer Copper with Catellations Plated On Edges and green soldermask Suppliers

Multilayer PCB on 4 Layer Copper with Catellations Plated On Edges and green soldermask

Product profile 1.1 General description This is a type of 4 layer printed circuit board built on FR-4 substrate with Tg 135C for the application of Control System. It's only 0.4 mm thick with white silkscreen ... Read More
2018-12-17 08:59:33
Good Quality Gold Finger Multilayer PCB On 4 Layer Copper With HASL Lead Free and green soldermask Suppliers

Gold Finger Multilayer PCB On 4 Layer Copper With HASL Lead Free and green soldermask

Product profile 1.1 General description This is a type of 4 layer printed circuit board built on FR-4 substrate with Tg 135C for the application of WiFi Access Point. It's 1.6 mm thick with white silkscreen... Read More
2018-12-17 08:51:34
Good Quality Immersion Gold Multilayer PCB Bulit On 6 Layer Copper With Blue Color and 1.6mm thick Suppliers

Immersion Gold Multilayer PCB Bulit On 6 Layer Copper With Blue Color and 1.6mm thick

Product profile 1.1 General description This is a type of 6 layer printed circuit board built on FR-4 substrate with Tg 135C for the application of Antena WiFi. It's only 1.0 mm thick with white silkscreen... Read More
2018-12-17 08:45:16
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
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