Bob Willis Electronic Assembly Book Reviews for Electronic Assembly Engineers June 2019

Two new books this month, hopefully there is something that will have you visiting your book shop or online service soon Light Emitting Diodes Materials, Proceses, Devices and Applications Jinmin Li Springer.com Practical Guide to X-ray Inspection Criteria & Common Defect Analysis Nordsondage.com Bob Willis

Bob Willis Coating Defect of the Month 2019

Bob Willis Defect of the Month explains variation in coating under UV inspection lights? Bobs webinar guide to conformal coating and inspection is available online and covers all of the different solutions from his archives see https://www.bobwillis.co.uk/product/online-webinar-archive-booking/ The video is just one of the Defect of the Month videos featured by IPC, SMTA and Circuits Assembly to help provide better understanding of process issues and help support training of younger engineers Past Defect of the Month magazine pages are available online at Circuits Assembly magazine or the videos at https://www.youtube.com/user/MrBobwillis

Bob Willis Solder Joint Voids Defect of the Month 2019

Bob Willis Defect of the Month explains solder joint voids and are they an issue to everyone? Bobs webinar guide to voids in solder joints and how to overcome them in manufacture is available online and covers all of the different voids and solutions from his archives see https://www.bobwillis.co.uk/product/online-webinar-archive-booking/ The video is just one of the Defect of the Month videos featured by IPC, SMTA and Circuits Assembly to help provide better understanding of process issues and help support training of younger engineers Past Defect of the Month magazine pages are available online at Circuits Assembly magazine or the videos at https://www.youtube.com/user/MrBobwillis

Bob Willis Blocked Holes Defect of the Month 2019

Bob Willis Defect of the Month explains what happens when the top side of plated through holes are blocked during wave or selective soldering. The video is just one of the Defect of the Month videos featured by IPC, SMTA and Circuits Assembly to help provide better understanding of process issues and help support training of younger engineers Past Defect of the Month magazine pages are available online at Circuits Assembly magazine or the videos at https://www.youtube.com/user/MrBobwillis

Cleaning Conformal Coating Helps De-soldering

Bob Willis Defect of the Month explains one reason why De-soldering can be more difficult with coatings. The video is just one of the Defect of the Month videos featured by IPC, SMTA and Circuits Assembly to help provide better understanding of process issues and help support training of younger engineers Past Defect of the Month magazine pages are available online at Circuits Assembly magazine or the videos at https://www.youtube.com/user/MrBobwillis

Our Canada Trip 2019

Our trip to Canada this year and all of the places we visited are featured, however not all of the photos taken, or videos shot are included. It was a fantastic trip organised with Audley Travel Travelling between locations was by car and train. Not just any old train, the Rocky Mountain Railway Just under three weeks it gave us the opportunity to experience many of the world-famous locations and experience this outstanding country and its sheer beauty. We also took our “Gunrunner” beep beep Tee Shirt for the 4000plus mile trip to Vancouver Calgary Canmore Banff Lake Louise Jasper Vancouver Vancouver Island The next trip its back to the sunshine and diving not to say the sun did not shine in Canada. We only had one wet day which we spent in the in a rain forest in Vancouver Joanne & Bob Images and video taken on a Samsung G8 and Olympus TG5

Solder Mask Outgassing Defect of the Month

Bob Willis Defect of the Month explains one reason why solder mask can outgas during assembly and cause problems coatings. The video is just one of the Defect of the Month videos featured by IPC, SMTA and Circuits Assembly to help provide better understanding of process issues and help support training of younger engineers Past Defect of the Month magazine pages are available online at Circuits Assembly magazine or the videos at https://www.youtube.com/user/MrBobwillis