1) Single Sided PCB 2) Material ranges: FR-1, 94VO/HB, 22nf, CEM-1 and CEM-3, FR-4 3) Copper weight: 1-2 oz 4) Profile: Punch 5) Thickness: 0.8mm-1.6mm 6) Surface finish: OSP, HASL, Immersion Gold
Industry Directory | Manufacturer
Professional, Reliable,High Quality,Low Cost, Rapid Delivery PCB manufacturer
1). Size: 45*140mm/1 up 2). Layer count: 2 Layer, 20 μm PTH 3). Thickness: 1.6mm +/- 10% 4). Copper weight(Finished): 35 μm 5). SMOBC: LPI Green solder mask/ White legend 6). Holes: 0.4mm minimum, 4/4 mil track/space 7). Pads finish: HASL 8).
Industry Directory | Manufacturer
We provide cost effective, custom printed circuit boards (PCBs) through an instant online system. We also provide PCB Assemb
Industry Directory | Manufacturer
Caring Circuit specialises in the supply of prototype, small and medium-series PCBs factory in Shenzhen,China.We are a leading provider of custom Single layer,double layer,multilayer rigid PCBs.
Technical Library | 2023-04-25 22:03:25.0
This report hopes to achieve several goals: 1. Determine the link between bare PWB contamination, soldered assembly contamination and long-term product reliability. 2. Establish measurable limits for bare PWB cleanliness as well as process control limits for both an aqueous as well as a water-soluble soldering process. 3. Determine whether there is any correlation between common, industry-accepted rose/modified rose (omegameter/ionograph type) testing and long term product reliability. 4. Determine the effect PWB plating finish (HASL, Immersion Silver and Cu OSP) has on both bare PWB contamination as well as soldered assembly in a no clean and water soluble process. 5. Determine whether there is a link between percentage of saponifier used to wash soldered assemblies and long-term reliability. 6. Establish a more cost-effective test for manufacturers to use as a process-monitoring tool.
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 | 2021-12-29 19:37:20.0
The purpose of this study was to compare the strength of the bond between resin and glass cloth for various composites (laminates) and its dependence on utilized soldering pad surface finishes. Moreover, the impact of surface finish application on the thermomechanical properties of the composites was evaluated. Three different laminates with various thermal endurances were included in the study. Soldering pads were covered with OSP and HASL surface finishes. The strength of the cohesion of the resin upper layer was examined utilizing a newly established method designed for pulling tests.
Industry News | 2018-10-18 10:16:53.0
Solder Tinned Pads vs Gold Plated Pads - The Importance of Selecting the Proper Surface Finish
New Equipment | Assembly Services
100% manufacturability check prior to production IPC Class 2 specifications 100% electrical test on all boards Fully-finished PCBs with 2 solder-masks and 1 or 2 silk-screens Full finish on copper: HASL, RoHs, gold or silver . 1
