Solder FAQs:

Q: Are solders somewhat less convenient for hand-soldering due to their generally higher melting points and tendency to dissolve copper wire?

A: Yes, and but have been increasing in use due to the environmental benefits of avoiding lead-based electronic components.

Q: Are solders used that will pass assay?

A: Yes.

Q: Was solder still used until the 1980s because it was thought that the amount of lead that could leach into water from the solder was negligible from a properly soldered joint?

A: Yes.

Q: Are solders frequently "thermosetting", as their melting temperature after recrystallization becomes significantly higher?

A: Yes, this allows soldering the parts together at lower temperature than the subsequent bake-out without remelting the joint afterwards.

Q: Is solder also often used for repair work for the same reason?

A: Yes.

Q: Are solders used for brazing?

A: Yes, and melt at higher temperatures.

Q: Are solders available as frit powder with grain size below 60 micrometers?

A: Yes.

Q: Are solders used by two-thirds of Japanese manufacturers for reflow and wave soldering?

A: Yes, and by about 75% of companies for hand soldering.

Q: Is solder used?

A: Yes, and e.g., for joining together parts of cathode ray tubes and plasma display panels.

Q: Are solders used: vitreous?

A: Yes, and devitrifying.

Q: Is solder also used in manufacturing to join metal parts that cannot be welded?

A: Yes.

Q: Are solders frequently used in electronic packaging?

A: Yes.

Q: Are solders useful in applications like subminiature vacuum tubes or for joining mica windows to vacuum tubes and instruments?

A: Yes, Thermal expansion coefficient has to be matched to the materials being joined and often is chosen in between the coefficients of expansion of the materials.

Q: Are solders prone to corrosion?

A: Yes, and especially in presence of chloride ions.

Q: Is solder heated would risk damaging delicate circuitry?

A: Yes.

Q: Are solders used to join glasses to other glasses?

A: Yes, and ceramics, metals, semiconductors, mica, and other materials, in a process called glass frit bonding.

Q: Are solders frequently used for glass-to-metal seals and glass-ceramic-to-metal seals?

A: Yes.