Industry Directory | Manufacturer
We provide cost effective, custom printed circuit boards (PCBs) through an instant online system. We also provide PCB Assemb
Industry Directory | Consultant / Service Provider / Manufacturer
Tropical Stencil is dedicated to providing the highest quality Laser Cut Stencils; with our rapid response, you will have your Stencil delivered on-time.
FR-4 Material 1. 0 mm Thickness 1oz copper thickness 4 Layers HASL Surface Treatment Green Solder Mask e-test
New Equipment | Fabrication Services
Base Material: Aluminium Layer count: ten layer Board thickness: 3.0mm Copper Thickness:2 oz Surface finish: HASL Soldermask Colors: White
Electronics Forum | Tue Sep 09 15:10:01 EDT 2003 | swagner
Has anyone had negative experiences with hasl thicknesses below .00005'' of an inch on copper? If so could you please respond with what the problems were. Thanks in advance!!!
Electronics Forum | Wed Sep 10 09:32:56 EDT 2003 | swagner
Dave F, so what kind of problems would I see if this turned into a problem?
Industry News | 2018-10-18 11:08:03.0
Different Techniques for Plating
Parts & Supplies | Circuit Board Assembly Products
1). PCB prototypes to small volume. 2). Standard FR-4, 0.3-5mm thick, 1-5 oz 3). 1-30 Lalyer 4). MOQ 1 PCS 5). 4 days delivery 6). HASL, ENIG, OSP etc finish
Parts & Supplies | Circuit Board Assembly Products
1). FR-4 Material 2). 2 layer, 1.2mm thick 3). 1 oz copper weight. 4). LPI Green solder mask/White silk screen 5). Gold finger 40 microinch, bevelled. 6). HASL + Gold finger, ENIG + gold finger 7). Larg volum, punch contour.
Technical Library | 2021-04-08 00:30:49.0
As the electronic industry moves to lead-free assembly and finer-pitch circuits, widely used printed wiring board (PWB) finish, SnPb HASL, has been replaced with lead-free and coplanar PWB finishes such as OSP, ImAg, ENIG, and ImSn. While SnPb HASL offers excellent corrosion protection of the underlying copper due to its thick coating and inherent corrosion resistance, the lead-free board finishes provide reduced corrosion protection to the underlying copper due to their very thin coating. For ImAg, the coating material itself can also corrode in more aggressive environments. This is an issue for products deployed in environments with high levels of sulfur containing pollutants encountered in the current global market. In those corrosive environments, creep corrosion has been observed and led to product failures in very short service life (1-5 years). Creep corrosion failures within one year of product deployment have also been reported. This has prompted an industry-wide effort to understand creep corrosion
Career Center | Shen Zhen, China | Management,Sales/Marketing
Working in GLORYPCB for 10 years.knowing electronic supply chain very well. especially for PCB PCBA assembly and other Electronic Manufacturing Service.Glorypcb is a professional electronic manufacturer located in Shenzhen with three facilities.offe
SMT Express, Issue No. 5 - from SMTnet.com Volume 1, Issue No. 5 Wednesday, October 13, 1999 Featured Article Return to Front Page HASL WHAT A HASSLE, or HASL'd AGAINby Earl Moon INTRODUCTION This article updates one I wrote for Printed
Surface Mount Technology Association (SMTA) | https://www.smta.org/icsr/speaker_forms/Paper-Format-Requirements.doc
is D/δ for the case of diffusion control, were D is the diffusion coefficient in liquid and δ is the thickness of the effective concentration boundary layer. In general, the boundary layer thickness is less than 0.1mm. This boundary layer is a layer of
ASCEN Technology | https://www.ascen.ltd/Products/auto_optical_inspection/517.html
. A500 model is able to test HASL and red glue efficiently to improve solder image quality of after reflow and inspection results. It helps to solve the solder joints problems caused by PCB with different background
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