Technical Library | 2018-09-21 10:12:53.0
Moisture accumulates during storage and industry practice recommends specific levels of baking to avoid delamination. This paper will discuss the use of capacitance measurements to follow the absorption and desorption behaviour of moisture. The PCB design used in this work, focused on the issue of baking out moisture trapped between copper planes. The PCB was designed with different densities of plated through holes and drilled holes in external copper planes, with capacitance sensors located on the inner layers. For trapped volumes between copper planes, the distance between holes proved to be critical in affecting the desorption rate. For fully saturated PCBs, the desorption time at elevated temperatures was observed to be in the order of hundreds of hours. Finite difference diffusion modelling was carried out for moisture desorption behaviour for plated through holes and drilled holes in copper planes. A meshed copper plane was also modelled evaluating its effectiveness for assisting moisture removal and decreasing bake times. Results also showed, that in certain circumstances, regions of the PCB under copper planes initially increase in moisture during baking.
Technical Library | 2021-11-26 14:34:07.0
The use of desiccant bags filled with Silica Sand and or Clay beads used in conjunction with a Moisture Barrier Bag to control moisture for storage of printed circuit boards has long been an accepted practice and standard from both JEDEC and IPC organizations. Additionally, the use heated ovens for baking off moisture using the evaporation process has also been a long#2;standing practice from these organizations. This paper on alternative drying methods will be accompanied by completed independent, unbiased tests conducted by Vinny Nguyen, an engineering student (now graduated) from San Jose State University. The accompanied paper will examine the performance levels of different technologies of desiccant bags to control moisture in enclosed spaces. The tests and equipment set were reviewed by an engineer and consultant to the Lockheed Martin Aerospace Division and the IPC - TM-650 2.6.28 test method was review by engineer from pSemi. The tests were designed to mimic performance tests outlined in Mil Spec 3464, which both IPC and JEDEC have adopted for their respective standards. The test examined variables including absorption capacity rates, weight gain and release of moisture back into the enclosed area. The presentation will also address and highlight: • Similarities of PCBs and Heavy Equipment as it applies to Inspections, Causes of Failure, Types of Corrosion and Moisture Collection Points. • Performance Attributes of Different Desiccant Technologies as it applies to shape, texture, change outs, labeling and regeneration. • Venn Diagram of Electromechanical Failure with the circles 1. Current 2. Contamination 3. Humidity Presentation Available
Industry News | 2007-10-17 09:10:25.0
SARASOTA, FL � October 16, 2007 - Inovaxe Corp., a leader in delivering supply chain management solutions to electronics manufacturers, announces that Forrest Briggs, Director of Technical Services, and Carl Schneider, Principal Software Engineer, are members of the Surface Mount Technology Association (SMTA) Council on MSD.
Industry News | 2016-03-18 11:28:35.0
Inovaxe announces that it has been awarded a 2016 NPI Award in the category of Component Storage for its SMART InoAuto Mix part Storage System. The award was presented to the company during a Tuesday, March 15, 2016 ceremony that took place at the Las Vegas Convention Center during the IPC APEX EXPO.
Industry News | 2016-03-22 17:13:42.0
Launched less than a year ago, ECD’s SmartDRY™ intelligent dry storage technology has dramatically changed the way manufacturers approach storage for moisture-sensitive devices (MSDs). With SmartDRY’s many unique features, electronics assembly specialists now have an affordable, sophisticated dry storage solution that is more conducive to dynamic manufacturing environments.
Industry News | 2017-08-29 08:23:24.0
Seika Machinery announces that Michelle Ogihara, Senior Sales Manager at Seika, will co-chair the MSD Council Meeting with Mumtaz Bora, Peregrine Semiconductor, at SMTA International. The meeting is scheduled to take place Tuesday, September 19, 2017 at 2 p.m. in the Boardroom, Upper Level, South Ballroom of the Donald E. Stephens Convention Center, Rosemont, IL.
Industry News | 2014-02-24 15:32:15.0
Inovaxehas appointed Hermes Technology LLC as its manufacturers’ representative throughout the New England area.
Industry News | 2017-06-25 20:16:27.0
Inovaxe is pleased to announce its continued growth as the company expands into the Mexican market with its new manufacturers’ representative – Repstronics. Founded in 2003, Repstronics has more than 12 years of experience in the market, focusing on selling capital equipment, products and consumables to the Mexican market, with offices in the main industrial cities of Mexico.
http://www.essemtec.com/products.asp?ArtNr=Cubus The Cubus -- Next Generation SMT Storage device - innovates how SMT components are stored and provisioned for electronic manufacturing. For the first time, a storage device is fully user configurable
Technical Library | 2019-11-07 03:07:12.0
Many customers who have purchased the nitrogen cabinets have been in the mistaken belief that the air pipe can be pull down hard,so that it can cause the board to be damaged due to the hard pulling of the air pipe, which leads to the replacement of the penetrating board. Now, the following pictures are provided. Please note: Nitrogen cabinet is a optiomal choice for the microelectronics,semiconductor for humidity proof and anti-oxidation purpose,Climatest has put much efforts on the R&D of dry cabinets,as you know,our advangtage is to handle temperature and humidity,since early 1990s,our engineers began to test and research dry cabinet and nitrogen cabinet,all of our manufacturing process strictly follow ISO9001 standard,we supply to international customers for 20 years,if you are still looking for a reliable dry cabinet manufacturer to protect your MSD from moisture related damage,come to visit www.climatechambers.com,we are ready!
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