Industry Directory | Association / Non-Profit / Events Organizer / Training Provider
The SMTA membership is a network of professionals who build skills, share practical experience and develop solutions in electronic assembly technologies and related business operations.
Industry Directory | Consultant / Service Provider / Manufacturer
Tropical Stencil is dedicated to providing the highest quality Laser Cut Stencils; with our rapid response, you will have your Stencil delivered on-time.
ProActiv is a breakthrough process technology that dramatically improves solder paste transfer efficiency with stencil printing. It redefines the boundaries of Area Ratio rules for stencil apertures, which dictate the smallest apertures that can be p
Electronics Forum | Wed May 22 12:32:49 EDT 2002 | pwrgroup
which stencil vendor can deliver aspect ratio and area ratio and the statistical information to the user?It's difficult if the pad is modified.
Electronics Forum | Fri May 17 11:10:25 EDT 2002 | wister
Is there any software to design the stencil openings? It may be including automatic modify the aperture,monitoring aspect ratio and area ratio,even let you know the whole vloume of the opening and average ratio?because the stencil design is more impo
Technical Library | 2020-07-15 18:29:34.0
In the early 2000s the first fine-pitch ball grid array devices became popular with designers looking to pack as much horsepower into as small a space as possible. "Smaller is better" became the rule and with that the mechanical drilling world became severely impacted by available drill bit sizes, aspect ratios, and plating methodologies. First of all, the diameter of the drill needed to be in the 0.006" or smaller range due to the reduction of pad size and spacing pitch. Secondly, the aspect ratio (depth to diameter) became limited by drill flute length, positional accuracy, rigidity of the tools (to prevent breakage), and the throwing power of acid copper plating systems. And lastly, the plating needed to close up the hole as much as possible, which led to problems with voiding, incomplete fill, and gas/solution entrapment.
Technical Library | 2023-05-22 16:42:56.0
Nano-coatings are applied to solder paste stencils with the intent of improving the solder paste printing process. Do they really make a noticeable improvement? The effect of Nano-coatings on solder paste print performance was investigated. Transfer efficiencies were studied across aperture sizes ranging from 0.30 to 0.80 area ratio. Also investigated were the effects of Nano-coatings on transfer efficiencies of tin-lead, lead-free, water soluble, no-clean, and type 3, 4, and 5 solder pastes. Solder paste print performance for each Nano-coating was summarized with respect to all of these variables.
Career Center | Houston, Texas USA | Engineering,Management,Production
SMT Manufacturing Engineer – 2nd Shift Hunting Innova is a Houston based company serving industrial, energy, medical, defense and aerospace segments of the Electronic Manufacturing Services (EMS) Industry since 1989. Hunting Innova is located in N
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.
Career Center | Mysore, India | Engineering,Production,Quality Control,Technical Support
· New Product production line setup, Risk assessment, quality system deployment. · Process Engineering activities, PCB Design review w.r.t Design for manufacturability in Pilot lot. · Printed wiring Assembly Process Improvement (Stencil, PCB type, sc
SMT Express, Issue No. 5 - from SMTnet.com Volume 1, Issue No. 5 Wednesday, October 13, 1999 Proof Of Design a continuing column (saga) by The MoonMan Installment 3: DFM/CE Design Development Phases Continued from Front Page Sure, certain
SMTnet Express June 20, 2013, Subscribers: 26136, Members: Companies: 13402, Users: 34820 Low Surface Energy Coatings Rewrites the Area Ratio Rules by: Ricky Bennett; Assembly Process Technologies , Eric Hanson; Aculon With today's consumer
40731 | https://www.smta.org/smtai/SMTAI-2019-Technical-Program.pdf?v=200609010628
Surface Mount Technology Association (SMTA)
