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Blind Via 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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Blind Via PCB

  • High Precision Blind Via PCB suppliers
  • High Precision Blind Via PCB suppliers
  • High Precision Blind Via PCB suppliers
  • High Precision Blind Via PCB suppliers
  • High Precision Blind Via PCB suppliers

General Profile

Blind via, the outermost circuit layer is connected with the adjacent inner layer with an electroplated hole, which is called "blind via" because the opposite side cannot be seen. In order to increase the space utilization of PCB circuit layer, the manufacture procedure of "blind via" emerges correspondingly. Special attention is required to be paid to a proper drilling depth (Z axis) for this production method, but this method often results in difficult electroplating in the holes so almost no manufacturers adopt it; You can also drill holes in advance in the circuit layer which needed to be connected at the time of fabricating individual circuit layer before lamination, but relative precise positioning and alignment devices are required.

 

Blind via holes are very useful in SMT circuits since the solder cannot be drained away from the solder pads during soldering. Blind via holes can be placed within the footprint pads and not outside. With this method, great real estate savings can be achieved.

 

General knowledge

a) All blind via holes will be filled with epoxy resin from the prepreg sheets. Usually we cannot see it just by eyes. It's closed with a virtually flat surface of the copper lid. The via hole should be 100% filled with resin, and the thickness of the copper wall should not be less than 13μm (0.5 mil).

 

b) Blind via holes are often specified with a finished diameter of 0.20 or 0.25 mm (8 or 10 mils), which means that the holes can be drilled by means of 0.3 mm (12 mils) drill bits.

 

Cross section of a 6 layer PCB with blind via

Blind Via PCB

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Good Quality Blind Via PCB Bulit On 4 Layer Copper With Immersion Gold and green soldermask Suppliers

Blind Via PCB Bulit On 4 Layer Copper With Immersion Gold 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 Analog Devices. It's 1.6 mm thick with blind via from top to ... Read More
2018-12-10 08:55:05
Good Quality Blind via PCB Built on Tg170 FR-4 With 4 Layer Copper For Portable WiFi Router Suppliers

Blind via PCB Built on Tg170 FR-4 With 4 Layer Copper For Portable WiFi Router

Product profile 1.1 General description This is a type of blind via PCB built on FR-4 substrate with Tg 170C for the application of Portable WiFi Router. It's 1.6 mm thick with 4 layers copper, white ... Read More
2018-09-17 09:02:26
Good Quality Multilayer PCB Built on Tg150℃ FR-4 With Blind Via Outer Layer to Inner Layer Suppliers

Multilayer PCB Built on Tg150℃ FR-4 With Blind Via Outer Layer to Inner Layer

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 mobile phone with blind via technology. It's 1.6 mm thick with white ... Read More
2018-07-23 08:48:06
Good Quality Blind Via PCB Built On 4 Layers Copper With 1.0mm Thick and Immersion Gold on Pads Suppliers

Blind Via PCB Built On 4 Layers Copper With 1.0mm Thick and Immersion Gold on Pads

Product profile 1.1 General description This is a type of blind PCB (top to mid layer 1) built on FR-4 substrate with Tg 130Cfor the application of USB GPS. It's a 4 layer board at 1.0mm thick, white ... Read More
2018-06-27 10:30:54
Good Quality Blind Via PCB Built On 8 Layer With Scoring (V-Grooving, V-cut) Immersion gold and black soldermaks Suppliers

Blind Via PCB Built On 8 Layer With Scoring (V-Grooving, V-cut) Immersion gold and black soldermaks

General Profile Blind via, the outermost circuit layer is connected with the adjacent inner layer with an electroplated hole, which is called "blind via" because the opposite side cannot be seen. In order to ... Read More
2018-06-23 10:35:36
Good Quality Blind Via PCB Built On 10 Layer With Differential Impedance Control and immersion Gold Suppliers

Blind Via PCB Built On 10 Layer With Differential Impedance Control and immersion Gold

General Profile Blind via, the outermost circuit layer is connected with the adjacent inner layer with an electroplated hole, which is called "blind via" because the opposite side cannot be seen. In order to ... Read More
2018-06-23 10:34:58
Good Quality Blind Via PCB Built On 6 Layer With RoHS Compliance Immersion gold and green soldermask Suppliers

Blind Via PCB Built On 6 Layer With RoHS Compliance Immersion gold and green soldermask

General Profile Blind via, the outermost circuit layer is connected with the adjacent inner layer with an electroplated hole, which is called "blind via" because the opposite side cannot be seen. In order to ... Read More
2018-06-23 10:34:41
Good Quality Blind Via PCB Built On 32 Layer With Non-Conductive Via Fill and white silkscreen color Suppliers

Blind Via PCB Built On 32 Layer With Non-Conductive Via Fill and white silkscreen color

General Profile Blind via, the outermost circuit layer is connected with the adjacent inner layer with an electroplated hole, which is called "blind via" because the opposite side cannot be seen. In order to ... Read More
2018-06-23 10:31:41
Good Quality Blind Via PCB Built On 30 Layer With CNC Routing 1.6mm thick and green soldermask Suppliers

Blind Via PCB Built On 30 Layer With CNC Routing 1.6mm thick and green soldermask

General Profile Blind via, the outermost circuit layer is connected with the adjacent inner layer with an electroplated hole, which is called "blind via" because the opposite side cannot be seen. In order to ... Read More
2018-06-23 10:27:18
Good Quality Blind Via PCB Built On 28 Layer With Panel Routing ENEPIC and green soldermask color Suppliers

Blind Via PCB Built On 28 Layer With Panel Routing ENEPIC and green soldermask color

General Profile Blind via, the outermost circuit layer is connected with the adjacent inner layer with an electroplated hole, which is called "blind via" because the opposite side cannot be seen. In order to ... Read More
2018-06-23 10:21:31
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