Industry Directory | Consultant / Service Provider / Manufacturer
SemiPack Services is an Electronic Manufacturing Support Service to the semiconductor industry. We specialize in providing support services to high-mix low-volume (HMLV) customers
Industry Directory | Consultant / Service Provider / Manufacturer / Other
Taiwan Dry Tech Corp. manufacturer of Eureka Dry Tech Fast Super Dryers for moisture/humidity proof protective storage of PCB, MSD, IC packages, meets IPC/JEDEC J-STD-033 & IPC-1601.
New Equipment | Cleaning Equipment
PCB Washing machine Fixture cleaning equipment and Batch cleaning system Features: 1. A comprehensive cleaning system: the surface of the product residues of organic matter, inorganic substances for thorough and effective cleaning; 2.
New Equipment | Cleaning Equipment
Features: 1. A comprehensive cleaning system: the surface of the product residues of organic matter, inorganic substances for thorough and effective cleaning; 2. Automatic cleaning mode: in a clean room to complete the cleaning, rinsing, drying all
Electronics Forum | Wed Mar 23 10:16:47 EDT 2011 | blnorman
If these are moisture sensitive they are required to be shipped in a moisture barrier bag and labeled as moisture sensitive. Depending on which moisture sensitivity level (MSL) the components have, floor life can range from unlimited to a mandatory
Electronics Forum | Fri Aug 24 12:20:41 EDT 2007 | petep
I have an MSL3 part (a relay) supplied in tape and reel. From what I am able to determine, these parts require baking at 257 degrees F for a minimum of 8 hours once the integrity of the seal is broken for over 168 hours. How are parts baked at th
Used SMT Equipment | Pick and Place/Feeders
Multiple Fuji CP Chipshooters Available. www.xlineassets.com AUCTION ITEMS Jabil Liquidation Including Universal Genesis 4988C With FlexJet 3 Heads Universal Genesis 4990B With Lighting Head Air-Vac DRS 18 Rework System Flexlink Transfer C
Used SMT Equipment | Pick and Place/Feeders
Universal Genesis Pick and Place Systems www.xlineassets.com - AUCTION ITEMS JABIL LIQUIDATION Featured Equipment: St. Petersburg, FL Universal Genesis 4988C With FlexJet 3 Heads Universal Genesis 4990B With Lighting Head Air-Vac DRS 18 R
Industry News | 2010-09-13 15:36:15.0
IPC — Association Connecting Electronics Industries® has released IPC-1601, Printed Board Handling and Storage Guidelines. The industry's sole standard on the handling, packaging and storage of printed boards, IPC-1601 provides users with guidance on how to protect printed boards from contamination, physical damage, solderability degradation, electrostatic discharge and moisture uptake.
Industry News | 2003-04-21 09:11:21.0
One for SMT Processes and one for SMT Systems
Parts & Supplies | Assembly Accessories
Pick and Place Machine JUKI FEEDER UPPER COVER 5632 E82037060AB Specifications: Brand Name JUKI FEEDER UPPER COVER Part number E82037060AB Model FF56FS Ensure Test in machine before shipping Guarantee Original 100% Supply all juki spare
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 | 2022-09-12 14:07:47.0
Unique component handling issues can arise when an assembly factory uses highly-moisture sensitive surface mount devices (SMDs). This work describes how the distribution of moisture within the molded plastic body of a SMD is an important variable for survivability. JEDEC/IPC [1] moisture level rated packages classified as Levels 4-5a are shown to require additional handling constraints beyond the typical out-of-bag exposure time tracking. Nitrogen or desiccated cabinet containment is shown as a safe and effective means for long-term storage provided the effects of prior out-of-bag exposure conditions are taken into account. Moisture diffusion analyses coupled with experimental verification studies show that time in storage is as important a variable as floor-life exposure for highly-moisture sensitive devices. Improvements in floor-life survivability can be obtained by a handling procedure that includes cyclic storage in low humidity containment. SMDs that have exceeded their floor-life limits are analyzed for proper baking schedules. Optimized baking schedules can be adopted depending on a knowledge of the exposure conditions and the moisture sensitivity level of the device.
With the development of miniaturization of assembly components, the layout area and pattern design area of PCBs have also been continuously reduced, and PCB manufacturers are constantly updating the production process to conform to the development tr
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Ceramic CCA's and Aqueous Wash and Bake Out Prior to Parylene Coating - EPTAC - Train. Work Smarter. Succeed Looking for solder training standards, manuals, kits, and more
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. Machine Operation and Profile Development. Circuit board preparation - masking, baking and other process steps. BGA site preparation
