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From ww1.microchip.com
Lead-free soldering techniques have been available for some years. However, they do not always meet the same physical criteria for attachments as alloys containing lead. In the past, the most common alloy for joining electronic components was the mixture of 63% tin and 37% lead. This composition of tin and lead provided excellent bonding strength as well as enough elasticity to withstand the thermal stresses in the product’s operating environment. As electronic manufacturers move away from this longtime standard PbSn alloy toward Pb-free solder alloys such as tin-silvercopper (Sn-Ag-Cu), melting and eutectic temperatures also change, requiring modification to the solder reflow profile
Products & Services
Solders include low melting point metal alloys usually in wire, powder, preform or paste forms. Solders are metal alloys with low melting points that are used to join metals together.
Soldering irons, stations and accessories bond two or more metallic surfaces together with a low melting alloy solder such as tin/lead or Sn/Cu/Ni/Ge alloys, which is melted, wets the surface and resolidifies forming a soldered joint.
Lead, tin and low melting alloys (white metals) are non-ferrous alloys used in the manufacture of solder, semiconductor, battery and decorative products.
Brazing and soldering services use welding techniques and related processes to fabricate parts and join components.
Filler metal alloys and consumables used in welding, brazing or soldering include items in rod sheet, wire spool, coated stick, weld stud, powder, preform or paste forms.
Product Announcements
Topics of Interest
The first step in choosing a solder is to decide what metals are going to be bonded, because the type of metal used will greatly influence the type of solder used. Soft solders are often used with...
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Tin whiskers are electrically conductive, crystalline structures of tin that sometimes grow from surfaces where tin (especially very thin layers of electroplated tin) is used as a final finish. They...
(Read More)
With today’s focus on zero-defect production, circuit board fabricators seek the most costeffective and easiest-to-implement way to inspect their output. This comes at a time when lead-free solder...
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It’s been a year since the Waste Electrical and Electronic Equipment Directive and the Restriction of Hazardous Substances Directive (RoHS) have mandated that lead be eliminated from electronic...
(Read More)
With the implementation of legislation such as the EU RoHS directive prohibiting Lead (Pb) from many applications there has been a growing concern within the electronics industry that there is an...
(Read More)
Technical Articles
Solder Reflow Recommendation (.pdf)
- Industrial Assembly
Test Probes in Lead-Free Solder PCB Processes (.pdf)
- Electrical Testing Equipment
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