| 31. | Layers of intermetallics can form between the solder and the soldered material.
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| 32. | Two types of glass solders are used : vitreous, and devitrifying.
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| 33. | Devitrifying solders frequently contain up to 25 % zinc oxide.
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| 34. | Another coating consideration is rapid diffusion of coating metal into Tin solder.
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| 35. | Sometimes, their barrels are also filled with molten lead or solder.
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| 36. | This causes the solder between this chip and the motherboard to break.
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| 37. | A small dot of solder is then deposited on each metalized pad.
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| 38. | The lead-free solder allows for tighter pad spacing.
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| 39. | Tapes based on polyimide films can resist molten solder in electronics applications.
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| 40. | Noble metals may be easy to solder but they have brittle joints.
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