These days, 0.5mm fine pitch contact is required for the contact board of semiconductor tester. We are offering a conract board which satisfied the requirements for multi pins and high speed in addition
Fabrication of ø100µm SVH pad on via Inner layer clearance is 165µm Fabrication of ø100µm SVH (Board thickness is Max 0.60t) Figure 1:Conceptual drawing of a cross section unit : µm SVH TH/LAND ø100/270 Figure 2:Enlarged view of the fine pitch wiring (inner-layer)
	Accommodates 2 pieces of 300 pin class on the same side All wiring of 0.5mm pitch section by SVH layer (SVH diameter is ø0.10 or less) High accuracy registration (annular ring width is 85µm or less) Board thickness tolerance is ±0.35% or less Impedance is controlled to be within ±10% or less

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