Stencils, metal mask tools used for the deposit of solder paste or preformed solder balls onto BGA substrate. Please call for the best process for your requirements.
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.
FR-4 Material 2.4 mm Thickness 4 Layers Lead Free Surface Treatment Red Solder Mask Gold Finger
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.
1). 6 oz (210μm) on BOT side. 2). 139.99*110.85mm=1 pcb 3). Base material: FR-4 4). 4 Layer, 1.6mm thick 5). Green solder mask/ white legend 6). Immersion gold. 7). Stack-up ---------- OVERLAY (TOP) ---------- SOLDER MASK (TOP)
Technical Library | 2019-05-29 01:47:22.0
1.Vias near SMD pads: Solder can flow into the via after melted. As a result cold joint will appear in the end. Check the picture below. 2.Vias on SMD pads: Solder can flow into the via more easier after melted. Check the picture below. 3.Via opening without soldermask covered. When workers solder TH parts by hand, soldering iron can touch vias sometime, then tiny amounts molten solder will stay on vias. This can lead to electrical short easily. We recommend you make all vias tenting (covered by solder mask) if it is possible.
PCBNPI-Professional PCB Fab/PCB Assembly Service Provider From China
Industry News | 2019-02-15 12:23:23.0
ACL Staticide® introduces a new item to its PCB, Production, Rework and Repair product line. Mighty Mask II #8692 is a high quality, washable solder mask designed for closed-loop water systems. Used widely in electronics and printed circuit board (PCB) manufacturing, Mighty Mask II prevents unwanted soldering of protected areas during wave soldering.
Industry News | 2021-01-30 07:05:46.0
Most wave soldering systems installed in electronic productions are equipped with one or two solder nozzles that generate a turbulent wave. This configuration is ideal for most products; however, this concept reaches its limitations if, for example, PCBs in masks are to be processed. The reliable wetting of all solder jointsis not guaranteed, depending on the thickness of the mask and the size of the cutouts. Additionally, it might be challenging to achieve a reproducible process if the distances between covered SMD components and the THT pins to be soldered are too small. Sophisticated assemblies that are processed in soldering masks often show soldering defects such as incomplete solder joints or solder bridges.
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 News | 2010-02-22 11:53:39.0
Rehm Thermal Systems has moved into a new Applications Center which will serve their North America marketplace. Located in the Atlanta suburb of Roswell, the new facility is designed to provide Rehm customers everything needed to characterize their convection and condensation reflow processes.
