Technical Library | 1999-07-21 09:04:04.0
A high volume manufacturer of printed circuit boards (PCBs) had attempted for many years to locate an adhesive that was robust enough to meet their manufacturing needs. This proved to be a challenge because they needed the adhesive to accommodate a wide range of different dispensing equipment and board designs. The two key performance criteria required from the adhesive were dispensability and adhesion...
New Equipment | Board Handling - Pallets,Carriers,Fixtures
To eliminate manual masking of PCB's before they go over the wave. Pallets help effect a zero defect policy make eliminating opportunities for mistakes.
Novec Surface Modifiers protect your electronics components quickly economically and safely. Drying to a transparent layer of just 1 micron, Novec surface modifiers offer superb resistance to moisture, oils and other contaminants in a third of the ti
Industry News | 2015-01-02 09:12:06.0
ACL, Inc. introduces #8691 Mighty Mask, a fast-curing, temporary masking agent for safeguarding components during conformal coating processes and component-free areas on PCBs during soldering.
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.
Industry Directory | Distributor / Equipment Dealer / Broker / Auctions / Manufacturer / Media / Publisher / Online Resource
All Through-hole & SMT PC Board Assembly equipments,Reflow and wavesoldering equipments,Humiseal conformal coating,SCH Technologies conformal coating equipments,Kyzen Cleaning solutions,Metronelec Solderability tester,Curing oven
Industry Directory | Manufacturer's Representative
Manufacturer's representative located in Florida.
Novec Surface Modifiers protect your electronics components quickly economically and safely. Drying to a transparent layer of just 1 micron, Novec surface modifiers offer superb resistance to moisture, oils and other contaminants in a third of the ti
New Equipment | Cleaning Equipment
Rapidly and effectively removes solder pastes, adhesives and flux residues. Completely air driven Misprint Cleaning System. Very simple and fast installation and operation. Board sizes up to 455 x 305mm - single vertical. Solder paste and flux re
Used SMT Equipment | Coating and Encapsulation
The SCS P-3201 Dip Coat System is a free-standing precision dip coater designed to coat circuit boards in non-automated production settings. With this system, you can effectively and efficiently apply a range of coatings, including urethane, epoxy, s
.jpg)