Zoomtak Electronics is an electronics manufacturer for printed circuit boards for years. We offer PCB production service for a variety of PCB types and quantities: Single-sided, double-sided, and multi-layer boards CEM-1, FR-4, FR-4 TG170, Aluminum
1) 120*130mm/1up, FR-4, Tg 135, CTI 175-225V 2) Dielectric constant(Er): 4.4-5.2 3) 2 layers, 1.6mm thick, 1 oz 4) Min. hole size: 0.3mm 5) Min. track/space: 4/4 mils 6) LPI Solder mask/White legend 7) Fiducial mark, tooling strips, mounting ho
1). 1+C+1 HDI, blind L1-L5/L5-L8 vias. 2). FR-4 Material, 1 oz weight. 3). 8 layer, 1.6mm thick. 4). 4/4 mils track and space 5). Min.drill 0.1mm 6). Green solder mask/ white silkscreen 7). Immersion gold over nickel
Specification: 6L Material: FR-4 TG170 Board thickness: 1.6mm Final copper: 35um Solder mask color: Blue Surface Finish: Immersion Gold, Au:3u” min. Impedance control Profile: Routing E-test: 100% Fixture Quality report: Solderability
Layers count: 4, Flex layers count: 2, Surface treatment: Immersion gold, Minimum hole size: 0.35mm, Minimum line width/space: 8/5.9 miles, Thickness: Rigid board: 2.00mm, Flex board: 0.24mm Size: 397.89 x 555mm
High-density interconnection/HDI PCB Layer: 8 (HDI) Structure: 2+4+2 with stack via Material: FR4(Tg170) Thiness: 1.0mm Surface treatment: Selective immersion gold + OSP Blind via L1-2 & L2-3 & L6-7 & L7-8: 0.1MM (4mil) Buried via L3-6:
New Equipment | Fabrication Services
Specifications: Base material: FR4 Layers count: four Board thickness: 1.6mm Copper thickness: 1oz Surface finishing: immersion and gold finger Solder mask color: green Size: 125.09 x 95.25/1up SMT SMD, 230 DIP and 4 pieces component
Double-Sided & Multi-Layer PCB Material: - FR-4 / Hi-Temp FR-4 / FR-5 / G10 / BT / Polyimide - Very Thin PCB: 0.004" 2L ~ 0.030" 8L - Thick Copper: 1/4 oz. ~ 11 oz. Process: - PTH - Blind/Buried/Segmented Via - Sequential Lamination - MicroVia Capa
Technical Library | 2014-11-06 16:43:24.0
This paper summarizes the results of recent investigations to examine the effect of electroless nickel process variations with respect to Pb-free (Sn-3.0Ag-0.5Cu) solder connections. These investigations included both ENIG and NiPd as surface finishes intended for second level interconnects in BGA applications. Process variations that are suspected to weaken solder joint reliability, including treatment time and pH, were used to achieve differences in nickel layer composition. Immersion gold deposits were also varied, but were directly dependent upon the plated nickel characteristics. In contrast to gold, different electroless palladium thicknesses were independently achieved by treatment time adjustments.
Technical Library | 2012-10-11 19:50:09.0
First published in the 2012 IPC APEX EXPO technical conference proceedings. This paper shows the benefits by using a pure palladium Layer in the ENEPIG (Electroless Nickel, Electroless Palladium, Immersion Gold) and ENEP (Electroless Nickel, Electroless P
