| 摘要 |
An electrical component includes a conductive substrate, a tin layer formed on the substrate, and a multi-phase coating formed on the tin layer to impede tin whisker growth. The multi-phase coating comprises a polymer matrix having pores dispersed therethrough, with the pores constituting at least 30% by volume of the coating. To form the multi-phase coating, the tin plating or finish is covered with a coating comprising a polymer matrix having a second material mixed therein. The second material is subsequently removed from the polymer matrix to produce a coating having pores in the matrix where the second material was disposed before being removed.
|
