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Solder print that page


often achieved and electromigration becomes a concern. At such current densities the Sn63Pb37 solder balls form hillocks on the anode side and voids on the cathode side; the increased content of lead on the anode side suggests lead is the primary migrating species. [ 4 ] Contact with molten

Solder mask print that page

Solder mask comes in different media depending upon the demands of the application. The lowest-cost solder mask is epoxy liquid that is silkscreened through the pattern onto the PCB. Other types are the liquid photoimageable solder mask (LPSM) inks and dry film photoimageable solder mask

wikipedia.org | 2011/4/28 2:57:07

Soldering gun print that page


A soldering gun is a tool for soldering metals using tin-based solder to achieve a highly conductive contact. The tool uses a pistol shape, and has a trigger style switch so it can be easily operated with one hand. The body of the tool contains a transformer with a single-turn secondary

Reflow soldering print that page

attaching surface mount components to a circuit board . The goal of the reflow process is to melt the solder and heat the adjoining surfaces, without overheating and damaging the electrical components. In the conventional reflow soldering process, there are usually four stages, called "zones

wikipedia.org | 2011/5/1 21:38:20

Solder form print that page

In mathematics , more precisely in differential geometry , a soldering (or sometimes solder form ) of a fibre bundle to a smooth manifold is a manner of attaching the fibres to the manifold in such a way that they can be regarded as tangent. Intuitively, soldering expresses in abstract

wikipedia.org | 2011/3/14 16:37:48

Solder paste print that page

A majority of the defects circuit-board assembly are caused due to issues in solder -paste printing process or due to defects in the solder paste. An electronics manufacturer needs experience with the printing process, specifically the paste characteristics, to avoid costly re-work on the

wikipedia.org | 2011/3/25 15:55:40

Body solder print that page

Body solder is available in both leaded and lead-free formulas from most suppliers of auto customization parts and tools. Leaded body solders usually are an alloy of lead and 2 to 10% tin . [ 1 ] Body solder is melted with a blowtorch and flowed onto a car, and then shaped with a solid

wikipedia.org | 2010/9/24 23:47:49

Nate Solder print that page

As a senior, Solder started at left tackle for the Colorado Buffaloes; Solder came to Colorado as a redshirt freshman in 2006 as a 6'7", 230-pound tight end ; by 2009, he was listed as 6'9", 305 pounds. Solder was one of three finalists for the 2010 Outland Trophy , along with Gabe Carimi

wikipedia.org | 2011/9/26 4:13:48

Solder Mask Over Bare Copper print that page

This is done to make the "pads" on PCBs solderable and to protect the bare copper underneath from oxidizing . Several different types of materials may be used, such as tin-lead alloy, silver , nickel , and gold . Categories : Electronics manufacturing Hidden categories: Articles lacking

wikipedia.org | 2010/9/27 3:53:54

Flux (metallurgy) print that page


the primary purpose of flux is to prevent oxidation of the base and filler materials. Tin-lead solder (e.g.) attaches very well to copper, but poorly to the various oxides of copper, which form quickly at soldering temperatures. Flux is a substance which is nearly inert at room temperature