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Low Cost Heavy Copper PCB China 4 Layers Circuit Boards Supplier Quick Details: FR4 base material 1.6mm board thickness 2oz heavy copper Plating gold finishing RF custom PCB boards Used for Radio Frequency From China PCB manufacturer Specifications
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The largest tin/lead secondary smelter in the western hemisphere, with a focus on recycling industrial metal waste streams. Areas of expertise include electronics dross, solder paste, solder wire, solder bar.
Teaching video on PCB through hole repair. BEST instructors teach the method for repair of a damaged eyelet using a multitude of different close up and angled views. Repair is completed per the IPC 7721 instructions. http://www.solder.net
Industry News | 2019-11-05 22:22:32.0
1. The definition of Sideplating Sideplating is actually the metalization of the board edge in PCB filed. Edge plating、Border plated、plated contour、side metal, these words can be used too to describe same function. 2. Sideplating Process Drilling - Milling plated Slots - Cleaning - Copper sink 3. Pictures to show the finished board’s sideplating
Industry Directory | Manufacturer
Founded in 1992, LaserJob specializes in laser-cut stencils for printed circuit boards used in electronic devices.
Industry News | 2014-08-28 11:46:07.0
Nihon Superior Co. Ltd. announces that Keith Sweatman will present the paper titled ”Enhancing the Impact Properties of Tin-Copper and Tin-Copper-Nickel Lead-Free Solders with Trace Additions of Zinc, Indium and Gold” at the upcoming SMTA International exhibition.
Technical Library | 2021-11-03 17:05:39.0
Additively printed circuits provide advantages in reduced waste, rapid prototyping, and versatile flexible substrate choices relative to conventional circuit printing. Copper (Cu) based inks along with intense pulsed light (IPL) sintering can be used in additive circuit printing. However, IPL sintered Cu typically suffer from poor solderability due to high roughness and porosity. To address this, hybrid Cu ink which consists of Cu precursor/nanoparticle was formulated to seed Cu species and fill voids in the sintered structure. Nickel (Ni) electroplating was utilized to further improve surface solderability. Simulations were performed at various electroplating conditions and Cu cathode surface roughness using the multi-physics finite element method. By utilizing a mask during IPL sintering, conductivity was induced in exposed regions; this was utilized to achieve selective Ni-electroplating. Surface morphology and cross section analysis of the electrodes were observed through scanning electron microscopy and a 3D optical profilometer. Energy dispersive X-ray spectroscopy analysis was conducted to investigate changes in surface compositions. ASTM D3359 adhesion testing was performed to examine the adhesion between the electrode and substrate. Solder-electrode shear tests were investigated with a tensile tester to observe the shear strength between solder and electrodes. By utilizing Cu precursors and novel multifaceted approach of IPL sintering, a robust and solderable Ni electroplated conductive Cu printed electrode was achieved.
With the development of miniaturization of assembly components, the layout area and pattern design area of PCBs have also been continuously reduced, and PCB manufacturers are constantly updating the production process to conform to the development tr
Industry Directory | Manufacturer
Established in 2003,Shenzhen Keyou PCB Co. Ltd is a professional high-tech factory that is engaged in PCBs manufacturing,including high-precision double sided and multilayer circuit boards from China.
