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Since 1971, Eagle Electronics Inc. has provided our Customers with the highest quality Printed Circuit Boards at fair and competitive prices.
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Panasonic NPM H16 Head Ball Spline 2LT4XQZCSS 141.4LP-(I) N510064335AA Panasonic NPM H16 Head Ball Spline SMT Spare Parts Panasonic Spare Parts Delivery time: 1-3 days Product description: Panasonic NPM H16 Head Ball Spline 2LT4XQZCSS 141.4LP-
Electronics Forum | Thu Apr 09 06:28:11 EDT 2009 | qualityguy
We have different Solder mask 'gloss' and 'satin' the gloss has a surface energy =40 dynes. The test evidence to date is strong correlation between surface energy, mask type, HASS failure
Electronics Forum | Thu May 31 14:59:50 EDT 2012 | jdumont
I use Trace and certainly recommend them. I actually just had this test done last week. Adhesion test per ASTM-3359 Method B. We use Humiseal 1B73, which is similar to what you use. Is your soldermask "active" enough for this coating? I believe
Used SMT Equipment | General Purpose Test & Measurement
Stanford Research SR785 The Stanford Research SR785 Two-Channel Dynamic Signal Analyzer is a precision, full-featured signal analyzer that offers state-of-the-art performance at a price that's less than half that of competitive analyzers. Buildin
Industry News | 2008-10-29 16:47:50.0
Greeley, CO � October 2008 � Florida CirTech Inc., a leading chemical blender to the Printed Circuit and Electronic Assembly industry, announces that Genesis Materials Technology (GMT) has recently dramatically improved the ENIG resistance of Florida CirTech's water-based AQ2000 LPI solder mask. AQ2000 LPI is now able to withstand the harsh chemical conditions found in the ENIG process.
Industry News | 2019-11-05 22:07:01.0
Tenting a via refers to covering via with soldermask to enclose or skin over the opening. A via is a hole drilled into the PCB that allows multiple layers on the PCB to be connected to each other. A non tented via is just a via that is not covered with the soldermask layer. Leaving these vias exposed or covered has pros and cons depending on the your design and manufacturing requirements.
Technical Library | 2016-09-08 16:27:49.0
In this investigation a test matrix was completed utilizing 900 electrodes (small circuit board with parallel copper traces on FR-4 with LPI soldermask at 6, 10 and 50 mil spacing): 12 ionic contaminants were applied in five concentrations to three different spaced electrodes with five replicas each (three different bare copper trace spacing / five replications of each with five levels of ionic concentration). The investigation was to assess the electrical response under controlled heat and humidity conditions of the known applied contamination to electrodes, using the IPC SIR (surface insulation resistance) J-STD 001 limits and determine at what level of contamination and spacing the ionic / organic residue has a failing effect on SIR.
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.
Preparing a surface for painting, adhesion, coating, or bonding are common processes that do not get the attention they deserve. Many times, these processes are key to a business and the continued success of a product. Watch the video to learn how th
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Höllmüller LPI Developer with flexible transport Pill Pre-Clean Mec Etch Bond for paint + inner layers Höllmüller Anti-Tarnish for inner layers Mec Laif Shadow Line - Direct Metallization Laif Resist Stripper with cyclone Schmid Tin Stripper Laif Ni/Au manual electroplating w/post-cleaning + dryer Laif Ni/Au – chem
