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ENIG PCBs with red soldermask Layers: 2 Base material: FR4 Copper thickness: 1oz Board thickness: 1.6mm Min. hole size: 0.45mm Min. line width: 3 mils Min. line spacing: 3 mils Surface finishing: HASL
Rogers Material 1.6mm Thickness 2 Layers 1oz copper thickness Gold Plating Surface Treatment red Solder Mask e-test
Electronics Forum | Thu Apr 22 10:57:20 EDT 1999 | Jack Coia
On various PCB's after building processes,such as reflow, flowsolder and wash. The soldermask on the PCB's have become discoloured, like a 'marble' effect all along the solder side of the board, it is lighter in contrast than normal, although when ot
Electronics Forum | Thu Apr 22 18:07:38 EDT 1999 | Tom B.
| On various PCB's after building processes,such as reflow, flowsolder and wash. The soldermask on the PCB's have become discoloured, like a 'marble' effect all along the solder side of the board, it is lighter in contrast than normal, although when
Industry News | 2003-03-31 09:43:08.0
With Schedectady International to develop, manufacture, and sell waterborne photoimagable etch resists and soldermasks in North America.
Industry News | 2003-06-18 08:04:27.0
Recently purchased and installed a new DP-1500-2X Dual-Sided Photoimageable Ink Coater from Circuit Automation
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.
Technical Library | 2011-06-16 18:59:43.0
Based on tests carried out with commercially available chemistry, this paper discusses the advantages available through the use of NEAP processes for inner layer bonding and soldermask pretreatment. The process is characterized with a view to high volume
This video shows how to use a mouse in CAM350. The GUI is also discussed as well as how to customize it. Custom toolbars and hot keys are demonstrated
SIPAD Systems Incorporated (SSi) is the Exclusive Supplier of SIPAD solid solder deposit in North America and the only SIPAD Solid Solder Deposit (SSD) coating service bureau in the world. SIPAD Systems Inc. supplies SIPAD solid solder coating servi
Events Calendar | Mon Apr 23 00:00:00 EDT 2018 - Thu Apr 26 00:00:00 EDT 2018 | Shanghai, China
SMTA China East Conference 2018
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic3004&OB=ASC.html
.5mm and below the padstack will always be Soldermask defined? And if it's Soldermask defined, then it will automatically be a Non-Collapsing type therefore should follow the pad oversize rule
| https://www.eptac.com/ask/bubbles-in-conformal-coating/
: If there is a bubble in the conformal coating that covers two traces, but both traces are covered with soldermask is this rejectable
