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 | Thu Jun 04 14:30:13 EDT 1998 | Igmar
I would appreciate any information concerning the wash and bake of blank Printed Circuit Boards before assembly. + Is it necessary to wash and bake PCB�s before assembly? + If any, what is the reason for wash and bake of PCB�s? + If any, what type of
Electronics Forum | Thu Feb 12 16:50:40 EST 1998 | Igmar
I would appreciate any information concerning the wash and bake of blank Printed Circuit Boards before assembly. + Is it necessary to wash and bake PCB�s before assembly? + If any, what is the reason for wash and bake of PCB�s? + If any, what type of
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 | 2018-01-08 18:24:10.0
Nordson ASYMTEK announces that it has acquired the rights and assets to progressive cavity pump (PCP) product lines from Infiniti Dosing o.m.s, based in Polling, Germany. The transaction, which closed on January 5, 2018, provides Nordson ASYMTEK with dispensing and dosing products marketed by Infiniti under the Dot Streamer (DS) and Accura brands. Infiniti's owner and founder, Mr. Jean-Claude Tytgat, will join Nordson ASYMTEK and continue to work on technology developments.
Industry News | 2020-01-23 17:30:46.0
ASYMTEK brings its latest fluid dispensing and conformal coating solutions to IPC APEX EXPO, San Diego, CA, in booth 1611. New at IPC APEX is the ASYMTEK Vortik™ family of progressive cavity pumps (PCP), with the smallest depositions possible on the market today. The VPs, VPm, and VPg pumps rely on positive displacement to provide continuous needle dispensing of one- and two-component fluids with high-volumetric accuracy, increased reliability, and reduced cycle time. At 0.2 microliters per second, the Vortik VPs offers the lowest flowrate and smallest depositions possible across all PCP pumps available in the market today - delivering precise control of narrow lines and small shots for two-component mixed fluids.
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
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/matrix/industries/lighting-and-led?page=3
… ASYMTEK Vortik Progressive Cavity Pump Solutions The Vortik® family of progressive cavity pumps (PCP) are fully integrated with our industry-leading dispensing systems and software to deliver repeatable volumetric accuracy without interruption
Surface Mount Technology Association (SMTA) | https://www.smta.org/msd/msd.cfm
. The industry standards provide a set of guidelines that are notoriously difficult to understand and challenging to implement. Simplified manual procedures tend to err on the conservative side and result in a large number of unnecessary bake cycles
