Ball Grid Array X-Ray Inspection Guide - 20 Colour Charts Includes X-Ray inspection guide of satisfactory BGA solder joints and process defects, x-ray images are black and white. The posters are provided as a pdf file and can be printed as A4 or A3
SMD joint tape for Hitachi Features: P/N Name Spec. Pack CE-1608 8MM 500pcs/box CE-1612 12MM 500pcs/box CE-1616 16MM 500pcs/box CE-1624 24MM 250pcs/box 1)size:8mm,12mm,16mm,16mm,24mm 2) color:yellow,green,black 3) special for new Hitachi mac
Electronics Forum | Fri Jun 08 18:27:03 EDT 2007 | jmelson
This is probably an inner plated layer of the component that did not bond well. It may be a component that either has the wrong surface finish for lead-free or can't handle the temperatures. Many times I have seen a similar-looking layer when the l
Electronics Forum | Fri Jun 08 17:22:51 EDT 2007 | naynayno
We have been producing an IMS assembly with SMT dpak's for some time. However, we recently encountered a new problem by chance - the parts can be flicked off with a finger nail. I state by chance because the solder joints are wetted and shiny with
Industry News | 2010-10-30 02:09:14.0
The premiere of Electronics Midwest, a joint production of IPC – Association Connecting Electronics Industries® and UBM Canon, was a confirmed win-win-win success for exhibitors, attendees and organizations alike.
Industry News | 2022-08-29 15:06:06.0
SMTA members and staff were among the 50 carefully-selected invitees who participated in the Future Electronics Workforce (F.E.W.) Summit held at Michigan Technological University (MTU) on August 17, 2022. Co-sponsored by Calumet Electronics and Michigan Technological University, and supported by the US Department of Defense (DoD) Industrial Base Analysis and Sustainment (IBAS) program, the summit had the goal of generating and implementing specific actions for each of the major stakeholder groups present that could ease the potentially crippling shortage of replacement technical staff in defense-critical electronics manufacturing.
Parts & Supplies | Assembly Accessories
Factory manufacturing yellow / bule / black SMT double splice tape special for Panasonic Product Description: 1.it has paper guide for aligning carrier tape.except its 2 tape strips sticking on top & bottom of carrier tapes. The 3rd tape strip is
Parts & Supplies | Assembly Accessories
Factory manufacturing yellow / bule / black SMT double splice tape special for Panasonic Product Description: 1.it has paper guide for aligning carrier tape.except its 2 tape strips sticking on top & bottom of carrier tapes. The 3rd tape strip is
Technical Library | 2013-01-17 15:37:21.0
A problem exists with electroless nickel / immersion gold (ENIG) surface finish on some pads, on some boards, that causes the solder joint to separate from the nickel surface, causing an open. The solder has wet and dissolved the gold. A weak tin to nickel intermetallic bond initially occurs, but the intermetallic bond cracks and separates when put under stress. Since the electroless nickel / immersion gold finish performs satisfactory in most applications, there had to be some area within the current chemistry process window that was satisfactory. The problem has been described as a 'BGA Black Pad Problem' or by HP as an 'Interfacial Fracture of BGA Packages…'[1]. A 24 variable experiment using three different chemistries was conducted during the ITRI (Interconnect Technology Research Institute) ENIG Project, Round 1, to investigate what process parameters of the chemical matrix were potentially satisfactory to use and which process parameters of the chemical matrix need to be avoided. The ITRI ENIG Project has completed Round 1 of testing and is now in the process of Round 2 TV (Test Vehicle) build.
Technical Library | 2013-12-27 10:39:21.0
The head-in-pillow defect has become a relatively common failure mode in the industry since the implementation of Pb-free technologies, generating much concern. A head-in-pillow defect is the incomplete wetting of the entire solder joint of a Ball-Grid Array (BGA), Chip-Scale Package (CSP), or even a Package-On-Package (PoP) and is characterized as a process anomaly, where the solder paste and BGA ball both reflow but do not coalesce. When looking at a cross-section, it actually looks like a head has pressed into a soft pillow. There are two main sources of head-in-pillow defects: poor wetting and PWB or package warpage. Poor wetting can result from a variety of sources, such as solder ball oxidation, an inappropriate thermal reflow profile or poor fluxing action. This paper addresses the three sources or contributing issues (supply, process & material) of the head-in-pillow defects. It will thoroughly review these three issues and how they relate to result in head-in pillow defects. In addition, a head-in-pillow elimination plan will be presented with real life examples will be to illustrate these head-in-pillow solutions.
Welcome to this Defect of the Month video on head in and on pillow, this series of videos were produced for and featured as part of the NPL/IPC video library and examples are taken from the NPL Defect Database. Over the last couple of years there hav
SMT FUJI Cp6 Cp7 Cp8 Washer, Lock W1019t Wph0780 FUJI SMT Machine Parts sales@smtpartssupply.com FUJI 13189 LAMP HALOGEN (R1022A) (R1022A) FUJI 100003 Absorber shock KSHA6X15-47W TO A1037W FUJI 100119 ASTRO BELT TIMING 10T5/1500 20.114.01 FU
Events Calendar | Tue Mar 30 00:00:00 EDT 2021 - Tue Mar 30 00:00:00 EDT 2021 | ,
Juarez Chapter Webinar: DFM, Design For Manufacturing
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SMTA China East Conference 2018
Career Center | Vestal, New York USA | Engineering,Research and Development
Experienced Sr./Principal Software Engineer and Systems Analyst in various applications, especially embedded real time systems and device drivers and board support including 80x86, Power PC, Motorola 68K, TI DSPs and a number of other platforms using
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