Insulates, protects against weathering, prevents from breakdowns, preserves rubber, plastics, features a wide range of operating temperatures: from �50�C to 200�C, good chemical resistance to oxidation, water solutions of acids, bases, sulfur dioxide
Industry Directory | Manufacturer
United Adhesives makes special adhesives, coatings, potting gels, sealants, various conductive adhesives, and optical adhesives for applications in electronics, semiconductors, and telecommunications.
Industry Directory | Equipment Dealer / Broker / Auctions
Heritage Global Partners (HGP) is a leading, full service, global auction and asset advisory firm. HGP's management team brings over 150 years of collective industry experience and expertise in virtually every industrial sector.
New Equipment | Cleaning Equipment
High Temperature, High Pressure Aqueous/Semi-Aqueous Batch Electronics Cleaning Systems Forget the limitations of the past and experience a batch system that offers multiple cleaning technologies for capability previously unachieved in a compact fo
Industry News | 2011-06-01 23:41:24.0
Kyzen, a world leading provider of environmentally responsible precision cleaning products for electronics and high-technology manufacturing operations, announces that Jack Reinke, Southeastern Regional Sales Manager, will moderate the panel discussion titled “What’s New in Electronic Assembly Cleaning” at the upcoming Space Coast Expo and Tech Forum.
• Materials: neodymium, iron, boron • Magnetic properties: high coercive force, the maximum operation temperature is up to 200°C • Grades: N33-N52, 33M-48M, 33H-48H, 30SH-45SH, 30UH-38UH and 30EH-38EH • Shapes and sizes: can be customized • Coati
New Equipment | Assembly Services
• Material: neodymium iron boron • Properties: high coercive force, the maximum working temperature is up to 200°C • Grades: N35 to N52, 33M to 48M, 33H to 48H, 30SH to 45SH, 30UH to 38UH and 30EH to 35EH • Shapes and size: disc, block, ring and s
WSM169 High voltage insulation grease Typical Applications : high voltage power supply, X-ray tube, high voltage cable connectors, high voltage electrical connectors, electrical connection components. SPECIFICATIONS: to prevent corona discharge an
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.
Industry Directory | Manufacturer
Multilayer PCB、Metal base PCB、Hi-Tg heavy copper foil PCB、Flat winding multilayer PCB、High frequency PCB、Mixed dielectric base high frequency multilayer PCB. Developing and manufacturing all kinds of
