Lead-free and Tin-lead Assembly and Reliability of Fine-pitch Wafer-Level CSPs Universal Instruments Corporation The option of treating fine pitch wafer level CSP (WLCSP) devices as flip chips and assembling them using a flux dipping process appears to be an increasingly attractive alternative to traditional paste printing assembly. However, printing solder paste offers the advantages of increasing standoff and improving thermal cycle performance. This paper discusses solder paste printing and flux dipping assembly processes for 0.4 and 0.5mm pitch lead-free WLCSPs and the corresponding assembly results and thermal cyclic reliability obtained... 
Printed Circuit Board Equipment Exchange #7
Assets for Sale: Bid on State-of-the-Art PCB Manufacturing Equipment Featuring Drilling & Routing, Lamination, Etching, Plating, Expore, Solder Mask, Final Test,plus SMT & Placement, Feeders, Reflow & Convection, Screen Printing and much more 
Assembly viewer software used by electronics manufacturers to quickly find components, pin, shorts between traces, etc. ProntoVIEW-MARKUP is also a redline tool that allows annotation of the assembly to create work and assembly instructions, first article inspection, etc.
Lead-Free (SAC Alloy) PLCC Placement (1 of 2) Bob Wettermann BEST Instructors have put to video demonstrations of common hand soldering skills. These are not designed to be in place of live one on one training where repetitive skills and subsequent one on one feedback is given. Rather they are quick refreshers designed to be viewed if a specific skill has not been practiced in a while. 
Posted by GSx Are there significant diffrences in terms of soldering (wire for manual solder) performance by using RO vs RE fluxes? Which are the main differences between the two fluxes?...»» Posted by jmabie We use a washer soluable solder flux for our solder wave. We then wash the boards in a dishwasher. We have done it this way for years without problems. We just got a new dishwasher and now we get residue on the solder (white marks)... »» Posted by Mark M. I have some issues arising with having to change some bottom heater elements and blowers. Can someone tell me how diffucult it will be to accomplish this with no trianing back ground on this. I have opened the books and made sense of most of it... »» 
Random Vibration, Shock Testing, HALT, ESS, HASS Seminar/Course | A.T.E. Solutions, Inc. Tue, June 12, 2007 | Local Hotel, NJ, USA Upon completion of this short course, you will be able to measure vibration and shock, calibrate vibration and shock measurement systems, convert measured data into a test program, interpret vibration and shock test requirements... »» Comprehensive Lead Free Workshop featuring Dr. Jennie Hwang Seminar/Course | Blackfox Training Institute Tue, June 5, 2007 | Denver, CO, USA The only complete Lead-Free Coverage! �Get the Facts� from world renowned Lead Free expert Dr. Jennie Hwang. Attend a comprehensive workshop that is designed to address every aspect of RoHS & WEEE directives... »» SMTA Upper Midwest Vendor Show and Technical Program Trade Show/Exhibition | SMTA Wed, June 6, 2007 | 3M Company, St. Paul, MN, USA The ever-popular SMTA Upper Midwest Vendor Show and Technical Program is back again at 3M Headquarters in St. Paul, MN. This program will be held in conjunction with free technical programming and attendee registration is free... »»
Jobs: Vancouver, WA, USA Engage in prospecting activities designed to establish relationships with targeted companies...»» Restronics Southern California Santa Clara, CA, USA Outside Sales Engineer needed for leading Mfg. Representative selling Electronics Production Equipment and Supplies...»» Tempe, AZ, USA Insert components into a printed circuit board in preparation for soldering. Inspect own work and team members...»» Resumes: Electronic/Mechanical Technician Desired Field: Maintenance... Winchester, VA, USA 20 years working on thru hole and Smt equipment. Phoenix II Operator Certification...»» Desired Field: Engineering Tijuana, Mexico 7 years of experience in Manufacturing procesess and New Products Introduction of comercial and military SMT and PTH boards...»» Desired Field: Engineering, Production Mentor, OH, USA 6 years of experience in electronics. I know how to program, operate, maintain, setup SMT machines...»» |
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