Industry Directory | Consultant / Service Provider / Manufacturer
One of the major suppliers of stencils and pallets to the SMT industry. Stentech offers Electroformed and laser cut stencils, pallets and fixtures.
New Equipment | Rework & Repair Services
MLT provides laser rework services for PCB's including pad / component isolation and trace cutting. Contacts, pads, or other metal features can be laser defined or redimensioned without plunging into the dielectrics below. Trace cuts can be on the
The 907 micro Placer series allows you to place and rework BGA, mBGA, QFP, and Flip-Chip devices quickly and accurately. This unit is quick and accurate for placing devices with the added option of built in rework. You can place and reflow devices w
Electronics Forum | Fri May 06 08:47:05 EDT 2016 | davef
You're correct. This design will have a record amount of 0402 rework for tombstoning and misalignments. Suggest that the pads on each end of all components be the same size in order to balance wetting forces during reflow.
Electronics Forum | Thu Oct 30 15:36:18 EDT 2008 | grantp
Hi, Sounds like your engineer does not know what he's doing. We have developed and built hundreds of thousands of boards with normal square pads for 0402, and we just use a 5 thou stencil with 5% reduction and it works well. Decoupling? What is tha
Used SMT Equipment | Repair/Rework
SRT (Sierra Research and Technology) Summit 1100 Automated Workstation Vintage: August 2000 Voltage: 208V Single Phase Includes (2) Computers and (1) Flatscreen Display The Summit 1100 is a semi-automated system for prototyping, light
Industry News | 2010-05-07 16:01:14.0
New this year! The SMTA International Technical Committee invites you to participate in a poster session at SMTA International. Poster sessions are presented on the show floor and are a great way to present current research and results in a concise manner without requiring a technical paper.
Industry News | 2015-01-20 18:02:54.0
Metcal today announced plans to exhibit in Booth #627 at the IPC APEX EXPO, scheduled to take place Feb. 24-26, 2015 at the San Diego Convention Center in California. The new Metcal Scarab Site Cleaning System (APR-2000-SCS) will be displayed for the first time, along with the new Solder Ball Replacement Kit and MX-HPDC dual cartridge hand-piece.
Technical Library | 2007-01-31 15:17:04.0
The goal of this project is to evaluate the reliability of lead-free BGA solder joints with a variety of different pad sizes using several different BGA rework methods. These methods included BGAs reworked with both flux only and solder paste attachment techniques and with or without the use of the BEST stay in place StencilQuick™. The daisy chained test boards were placed into a thermal test chamber and cycled between -25ºC to 125ºC over a 30 minute cycle with a 30 minute dwell on each end of the cycle. Each BGA on the board was wired and the continuity assessed during the 1000 cycles the test samples were in the chamber.
Technical Library | 2023-01-10 20:15:42.0
Over the past years there has been consistent growth in the use of electroless nickel / immersion gold (ENIG) as a final finish. The finish is now frequently being used for PBGA, CSP, QFP and COB and more recently gathered considerable interest as a low cost under-bump metallization for flip chip bumping application. One of the largest users for this finish has been the telecommunication industry, were millions of square meters of PCBs with ENIG have been successfully used. The nickel layer offers advantages such as multiple soldering cycles and hand reworks without copper dissolution being a factor. The nickel also acts as a reinforcement to improve through-hole and blind micro via thermal integrity. In addition the nickel layer offers advantages such as co-planarity, Al-wire bondability and the use as contact surface for keypads or contact switching. Especially those pads, which are not covered by solder need a protective coating in corrosive environment – such as high humidity or pollutant gas.
This video describes the BEST BGA rework and BGA rework services capabilities. What is described in this movie are the people, processes and tools unique to BEST and how that impacts its customers. The advanced equipment set including multiple refl
Training Courses | | | IPC-7711/7721 Specialist (CIS)
The Certified IPC-7711/7721 Specialist (CIS) training focuses on rework of electronic assemblies and repair and modification of printed boards and electronic assemblies.
Training Courses | | | IPC-7711/7721 Specialist (CIS) Recert.
The Certified IPC-7711/7721 Specialist (CIS) recertification courses are intended for those individuals who were previously certified as IPC-7711/7721 Specialist.
Events Calendar | Mon Apr 12 00:00:00 EDT 2021 - Mon Apr 12 00:00:00 EDT 2021 | ,
Europe Chapter Webinar: Tombstoning Components during Reflow Soldering - Causes & Cures
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.
Reworking QFN's Newly Developed Cost Effective Approach Reworking QFN's Newly Developed Cost Effective Approach As with any rework process, the pasting of the component is a sequential process. Each step is designed to minimize the risk of a
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/RSS_universal-grid-system_topic2404.xml
designs.I’m using 50um grid system down to 0402 (imp.) chip component sizes without issues but creating symmetrical and evenly dividable patterns for proper placement (including courtyard
1st Place Machinery Inc. | http://www.firstplacemachinery.com/firstplace_beamworks_spark400.html
) Component handling - Up to 75 mm (2.95”) and down to 0402 Throughput - Up to 1,000 CPH Vision capability - Matrox based algorithms Laser Soldering Module 4 laser diodes - 30 W each Independent optical system for each laser to direct XY
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