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High Density Interconnect PCBs

Best Solutions for Customer ProblemsPlacing different high pin-count BGAs, on both side of the PCBMaximization of wiring capacity on large PCBsFine Pitch through-hole-type multilayer PCBsPCB Application Fields & Specification OutlineIVH PCBs for High Performance ServersPCB for 0.4mm pitch CSP burn-in testsPCBs for Organic Probe Cards

Best Solutions for Customer Problems

Issue-1Placing different high pin-count BGAs, on both side of the PCB

We propose high-density and high-reliability multilayer PCBs for large pin-count BGA, placement on both sides of PCBs, applying technologies of conventional and sequential lamination. Our extended IVH technology enables to apply sequential lamination technology even for large PCBs over 500mm size.

MV-3* structure

28 layers (14+14)

Note: *1) High density PCB fabrication technology for hybrid layer structure composed of HDI technology and sequential lamination process.

Issue-2Maximization of wiring capacity on large PCBs

F-ALCS technology, which uses no plating process for vias forming, maximizes wiring capacity with its any layer IVH structure. This technology also enables to shorten fabrication lead-time with its one-time lamination process.

We propose best solutions for customer needs for high-density PCBs with huge wiring capacity like organic Probe Card applications.

Issue-3Fine Pitch through-hole-type multilayer PCBs

Narrow pitch PTH VIAs are available for high-density LSI testing boards and 0.4mm / 0.5mm pitch BGA burn-in boards. Moreover, high density PTH placements are available with our high-aspect PTH plating technology. General specifications about PCB thickness and their related PTH Via diameter are listed as below.
We propose for customer needs beyond general specifications. Please contact our sales for further requirements.

<Design Rule>
Thickness ≦1.6mm ≦4.0mm ≦5.0mm ≦6.5mm ≦8.0mm
Via Diameter φ0.15mm φ0.20mm φ0.25mm φ0.30mm φ0.35mm
Land Diameter φ0.35mm φ0.40mm φ0.45mm φ0.50mm φ0.55mm
Line/Space 0.05mm/0.05mm-0.09mm/0.09mm (depends on Cu thickness)

*MAX SPEC : Size 810mm×660mm, Thickness 8.0mm, Layer counts 52 layers

Cross section of PCBs

We can solve the problem with total PCB solutions!

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PCB Application Fields & Specification Outline

IVH PCBs for High performance Servers

Layer Construction 50 layers (with inner IVH layers)
PCB Size, Thickness 568mm × 470mm, 7.3mm
L/S, Via diameter 90µm / 110µm, φ350µm

PCBs for 0.4mm pitch CSP burn-In tests

Layer Construction 8 layers (for DIP type sockets)
PCB Size, Thickness 480mm × 580mm, 1.6mm
Via diameter (PTH) Φ150µm

PCBs for Organic Probe Cards

More details for PCB specifications and application cases

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