Industry Directory | Distributor / Manufacturer
Seika Machinery provides electronics manufacturers with advanced machinery, superior materials and engineering services including Automated Test Equipment, SMTA assembly equipment and QA products
Industry Directory | Manufacturer
We're CY Industry located in China focusing on SMT Equipment & Automation machinery. Our current product line can enrich your's capability, also the continuing support & upgrades could be the helping hand you need!
Photochromic Polarized Lens This new item is developed based on our polycarbonate polarized lens technology. Our photochromic dye is spread in the polycarbonate layer, not coated on the surface of the lenses. It means the photochromic function wi
New Equipment | Solder Materials
GalvRepair the structural steel sndustry standard for galvanizing repair for almost 60 years. Kapp GalvRepair solder is the leading formulation designed specifically for high quality repairs to galvanized steel surfaces. GalvRepair is simple, effecti
Electronics Forum | Thu Feb 17 15:01:23 EST 2005 | davef
We're not familiar with your DYMAX #984-LVUF. The problem is not with your conformal coating. The problem is with your 0805 [and not all of 0805, probably just those from a specific supplier]. This lack of coverage of components is called dewetting
Electronics Forum | Tue Sep 21 16:09:08 EDT 2004 | davef
Q1: What is "enough surface free energy"? A1: Look here for background: http://www.azom.com/details.asp?ArticleID=1575 Q2: How do I determine surface free energy? A2: We look at it a relative term. For instance, a semi matte finish on solder mask
Industry News | 2017-12-07 16:25:15.0
Nordson ASYMTEK has once again been honored with the 2017 Global Technology Award in the dispensing category for its NexJet® NJ-8 Jetting System with ReadiSet® 2-piece jet cartridge. This innovative jetting system simplifies precision fluid dispensing for accuracy, flexibility, and long-term reliability in fast-paced production environments. The award was presented at Productronica 2017, held in Munich, Germany, on November 14, 2017.
Industry News | 2018-10-18 20:00:29.0
Because IPC APEX EXPO will be held in January for the next five years, IPC will move its standards development committee meetings normally scheduled in Fall to June in 2019. This decision follows a survey of the standards committees where respondents indicated they would prefer to hold in-person standards development meetings in the summer months to have ample time to work on documents. IPC previously hosted its Fall Committee Standards Development meetings in conjunction with SMTA International (SMTAI).
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.
GPD Global | https://www.gpd-global.com/co_website/leadformers-cf9.php
& Unloader System Selection Conformal Coating Machines Selective Coating Machines -SimpleCoat Selective Coating with Tilt-&-Rotate -SimpleCoat TR Pumps Pumps for Integration Precision Auger Pump Jetting Pump - NCM5000 Volumetric Pump - PCD Time Pressure Dispensing Pump Selection Pump Accessories Precision Nozzles S Type
ASCEN Technology | https://www.ascen.ltd/face_mask_production_line/689.html
Huge Profit From Mask Making Machine,Is It Too Late To Invest Mask Production Line? -PCB magazine loader,PCB turn conveyor,pcb conformal coating machine,PCB router,PCB depaneling machine,pcb buffer conveyor from ASCEN technology Welcome to visit ASCEN | | | | | | | Cart
