Industry Directory | Consultant / Service Provider / Manufacturer / Other
MET is ready to meet your stencil requirements. We manufacture Electroformed Stencils, Laser Cut Stencils and Chemically Etched Stencils for various solder paste and glue printing applications.
Retrofit existing system with Innovative Dispensing Technology for Excellent Dispense Control and Repeatability Advanced pump technologies available for retrofitting include: True Volumetric Pump, Precision Auger Pump, Simplified Jetting Pump and Ti
High Precision Dispensers - MAX Series (Non-Heated) Max Series is capable of a wide variety of dispense applications including MicroVolume, Solder Paste and Conductive Adhesive, Underfill, Surface Mount Adhesive, Dam and Fill, Encapsulations, LED En
Electronics Forum | Fri Jan 29 16:17:13 EST 2021 | donnie15
The impact is low on larger pitches and pad sizes. as things get to the .4mm pitch the pad differences start affect your ball size and yields. The trace size going into the pads and the solder mask relief can cause some odd shaped pads with signif
Electronics Forum | Mon Nov 08 12:47:52 EST 2004 | clampron
Good Day Everyone, I have a BGA rework that has some chipped/damaged solder mask that will need to be repaired prior to BGA replacement. I was wondering what materials are being used in the industry for this type of application. Any help would be g
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Used SMT Equipment | Adhesive Dispensers
Asymtek Dispensemate 555 Dispensing System The DispenseMate 550 Series brings new dispensing power to a compact package. In a benchtop format, many of today's advanced automated dispensing features are available. It is ideal for batch processing or
Industry News | 2016-12-09 23:33:42.0
GPD Global offers advanced dispense pump technologies to upgrade your existing platform and take advantage of existing capital equipment. Retrofit your system with innovative dispensing technology for excellent dispense control and repeatability.
Industry News | 2018-09-06 12:12:07.0
GPD Global offers the ideal tabletop robots (Catalina Series) for precision dispensing.
Parts & Supplies | Circuit Board Assembly Products
1). PCB Thickness up to 5mm 2). FR-4 material, 1 oz copper finished 3). Green solder mask /white silk screen. 4). Blind/buried vias required. 5). Hot air level Pb free 6). Application: motor, medical equipment, industrial products.
Parts & Supplies | Circuit Board Assembly Products
PULANG TECHNOLOGY CO,.LTDOffers electronic manufacturing services including PCB designing, electronic contract manufacturing including electronic product design, electronic product development, electronic product repair, PCB manufacturing, electronic
Technical Library | 2019-09-24 15:41:53.0
This paper focuses on three different coating material groups which were formulated to operate under high thermal stress and are applied at printed circuit board manufacturing level. While used for principally different applications, these coatings have in common that they can be key to a successful thermal management concept especially in e-mobility and lighting applications. The coatings consist of: Specialty (green transparent) liquid photoimageable solder masks (LPiSM) compatible with long-term thermal storage/stress in excess of 150°C. Combined with the appropriate high-temperature base material, and along with a suitable copper pre-treatment, these solder resists are capable of fulfilling higher thermal demands. In this context, long-term storage tests as well as temperature cycling tests were conducted. Moreover, the effect of various Cu pre-treatment methods on the adhesion of the solder masks was examined following 150, 175 and 200°C ageing processes. For this purpose, test panels were conditioned for 2000 hours at the respective temperatures and were submitted to a cross-cut test every 500 h. Within this test set-up, it was found that a multi-level chemical pre-treatment gives significantly better adhesion results, in particular at 175°C and 200°C, compared with a pre-treatment by brush or pumice brush. Also, breakdown voltage as well as tracking resistance were investigated. For an application in LED technology, the light reflectivity and white colour stability of the printed circuit board are of major importance, especially when high-power LEDs are used which can generate larger amounts of heat. For this reason, a very high coverage power and an intense white colour with high reflectivity values are essential for white solder masks. These "ultra-white" and largely non-yellowing LPiSM need to be able to withstand specific thermal loads, especially in combination with high-power LED lighting applications. The topic of thermal performance of coatings for electronics will also be discussed in view of printed heatsink paste (HSP) and thermal interface paste (TIP) coatings which are used for a growing number of applications. They are processed at the printed circuit board manufacturing level for thermal-coupling and heat-spreading purposes in various thermal management-sensitive fields, especially in the automotive and LED lighting industries. Besides giving an overview of the principle functionality, it will be discussed what makes these ceramic-filled epoxy- or silicone-based materials special compared to using "thermal greases" and "thermal pads" for heat dissipation purposes.
Technical Library | 2019-09-19 00:28:48.0
The symbiotic relationship between solder masks and selective finishes is not new. The soldermask application is one of the key considerations to ensure a successful application of a selective finish. The selective finish is the final chemical step of the PCB manufacturing process, this is when the panels are at their most valuable and are unfortunately not re-workable. Imperfections are not tolerated, even if they are wholly cosmetic. Quality issues often manifest themselves in the form of a 'ping pong' conversation between the fabricators, the soldermask suppliers and the selective finish suppliers. Without tangible evidence these discussions are difficult to resolve and the selective finish process is usually regarded as responsible. This paper will focus on the chemical characteristics and use them to predict or identify potential issues before they occur rather than specifically name 'critical' soldermasks. It is also the intention of this paper to address the potential of a soldermask to react to common yield hiking practices like UV bumping and oven curing. It is hoped that this awareness will help fabricators to ensure maximum yields by asking the right questions. 'Critical’ soldermasks impact all selective finishes. In this paper, practical experience using immersion tin will be used to highlight the relationship between 'critical' soldermasks and some of the issues seen in the field. The paper will include a novel approach to identify re-deposited volatiles after the reflow.
http://www.gpd-global.com No drip no drool across a wide range of fluid viscosities (low-to-mid and low-to-high). No manual adjustment to compensate for pump variability. Truly Volumetric PCD Pumps for total control of dispensing fluids. Ability to
High Precision Dispensers - MAX Series (Non-Heated) Max Series is capable of a wide variety of dispense applications including MicroVolume, Solder Paste and Conductive Adhesive, Underfill, Surface Mount Adhesive, Dam and Fill, Encapsulations, LED En
Training Courses | | | PCB Design Courses
The PCB design courses teach students the process, techniques and tools needed to design layout of printed circuit boards.
Training Courses | | | IPC-6012 Trainer (CIT)
The Certified IPC-6012 Trainer (CIT) courses recognize individuals as qualified trainers in the area of design, fabrication and inspection of rigid printed boards and prepare them to deliver Certified IPC-6012 Specialist (CIS) training.
Events Calendar | Tue Jul 11 00:00:00 EDT 2023 - Tue Jul 11 00:00:00 EDT 2023 | Oshkosh, Wisconsin USA
Wisconsin Chapter In-Person Event: PCB Workshop and PCB Plant Tour
Career Center | Space Coast, Florida USA | Engineering,Research and Development
Board Level Assembly BGA Expert! We are in need of an Electronic Packaging or Advanced Manufacturing Engineer to work with the Advanced Manufacturing Technology Group of a major Florida based Communications company. Support IR&D and Program activit
Career Center | Melbourne, Florida USA | Engineering
Advanced Manufacturing Technology Position Description Job Description: AMT Engineer � Level 4 Support IR&D and Program activities Division wide working on the development, qualification, and implementation of electronic packaging technologies, wi
Career Center | Lalkua, India | Engineering,Maintenance,Production,Quality Control,Research and Development,Technical Support
Machine maintenance Service and support knowledge with customer satisfactory. Deal with customers at all level via phone,remote and mail.Sound knowledge of PCB fabrication machine.
Career Center | Shen Zhen, China | Management,Sales/Marketing
Working in GLORYPCB for 10 years.knowing electronic supply chain very well. especially for PCB PCBA assembly and other Electronic Manufacturing Service.Glorypcb is a professional electronic manufacturer located in Shenzhen with three facilities.offe
ASYMTEK Products | Nordson Electronics Solutions | https://www.nordson.com/en/divisions/asymtek/fluid-types/solder-mask?con=t&page=5
: Solder Mask Flux Nordson ASYMTEK Efficient application of flux in precise, thin patterns maximizes throughput and quality for flip chip and CSP production Find the Right Fit for Your Application
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/advice-for-solder-mask-paste-mask-layers_topic484_page1.html
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