Minimum line width/distance: 4mil; Minimum aperture: 0.25mm; Technique: Immerged Ni/Au+Entek; Layers and thickness: 7/L, blind hole board
New Equipment | Assembly Services
China Double Sided Circuit Boards Fabricaiton and Assembly PCBA Turnkey Manufacturer 2 Layers circuit boards PCB FR4 1.6mm PCB fabrication and assembly 1oz PCB copper thickness Shenzhen PCB and PCBA manufacturer China turnkey contract electroni
Electronics Forum | Thu Apr 12 09:13:41 EDT 2007 | aj
Hi all, What stencil aperture designs do you use for 0402 components? Thanks in advance for replies. aj...
Electronics Forum | Wed Apr 18 09:31:24 EDT 2007 | aj
Hi, Can you advise the footprint dimensions used on the PCB ? Thanks, aj...
Industry News | 2011-01-28 17:29:19.0
Count On Tools Inc. introduces new Ceramic Nozzle Series for the complete line of Universal Instruments Corporation’s (UIC) pick-and-place machines, including Genesis, Advantis, Flexjet and GSM.
Industry News | 2018-10-18 08:34:52.0
How to Prevent Solder Bridging in 3528 PLCC6 RGB LEDs?
Technical Library | 2017-09-28 16:36:33.0
These nano-coatings also refine the solder paste brick shape giving improved print definition. These two benefits combine to help the solder paste printing process produce an adequate amount of solder paste in the correct position on the circuit board pads. Today, stencil aperture area ratios from 0.66 down to 0.40 are commonly used and make paste printing a challenge. This paper presents data on small area ratio printing for component designs including 01005 Imperial (0402 metric) and smaller 03015 metric and 0201 metric chip components and 0.3 mm and 0.4 mm pitch micro BGAs.
Technical Library | 2023-05-02 19:06:43.0
As 0402 has become a common package for printed circuit board (PCB) assembly, research and development on mounting 0201 components is emerging as an important topic in the field of surface mount technology for PWB miniaturization. In this study, a test vehicle for 0201 packages was designed to investigate board design and assembly issues. Design of Experiment (DOE) was utilized, using the test vehicle, to explore the influence of key parameters in pad design, printing, pick-andplace, and reflow on the assembly process. These key parameters include printing parameters, mounting height or placement pressure, reflow ramping rate, soak time and peak temperature. The pad designs consist of rectangular pad shape, round pad shape and home-based pad shape. For each pad design, several different aperture openings on the stencil were included. The performance parameters from this experiment include solder paste height, solder paste volume and the number of post-reflow defects. By analyzing the DOE results, optimized pad designs and assembly process parameters were determined.
Career Center | , | Engineering,Production
Project Management, SMT Process Engineering
Career Center | Bangalore, India | Engineering,Maintenance,Production,Technical Support
SMT Stencil designing & Knowledge of full SMT process software known CAD/CAM -circuit CAM Pro 7.3,GC Power station, GCCAM Edit,Auto CAD, Fault finding of Electronic Boards & Servicing electronic machines.
SMTnet Express, September 2, 2021, Subscribers: 26,737, Companies: 11,436, Users: 26,825 Tombstoning Of 0402 And 0201 Components: "A Study Examining The Effects Of Various Process And Design Parameters On Ultra-Small Passive Devices
