Comparative Testing of Platings for Mounting

Brazing

A.M. Medvedev, Moscow Aviation Institute (National Research University), Moscow, Russia, medvedevam@bk.ru

F.V. Vasil'ev, Moscow Aviation Institute (National Research University), Moscow, Russia

V.A. Mozharov, Moscow Aviation Institute (National Research University), Moscow, Russia

key words

immersion coatings, aircraft electronics, solderability, printed board

References

From a number of traditional finishing platings for mounting brazing electronic components is selected a new type of coating­immersion tin with barrier sublayer. We have rated coatings applied to extreme operating conditions peculiar to aerospace systems. It is shown that in a number of well­known coatings, in particular gold, nickel, an immersion tin has a significant advantage in mass production of electronics and in ensuring the reliability of the technical means of avionics. In conclusion we have given results of comparative tests ability to the soldering of common widespread finishing coverings in the wide range of aggressive exterior influences.

1. OST 107.460092.028–96 Pechatnye platy. Tekhnicheskie trebovaniya k tekhnologii izgotovleniya (Avangard).

2. Lanin V. Payaemost’ vyvodov elektronnykh komponentov [Solderability of electrical element sorts], Tekhnologii v elektronnoy promyshlennosti, 2010, no. 4.