If a man was named "Saleh bin Tariq bin Khalid"... "Saleh" is his "first" name,
"BIN" translates as "son of",
so "Tariq" is Saleh's father's name,
and "Khalid" his father.
The word "bin" means "son of" in Arabic. It may also be written as "ibn. " The female equivalent is "bint," meaning "daughter of. " There may be series of such patronymics in a name. These are used less often than in earlier centuries.
The name "Bin" in the middle of a name means "Son of. " It is similar to the O' prefix in Irish or Mc in Scotland (eg. O'Hare, McDonald. ) Osama Bin Laden's full name (westernised) is actually Osama bin Mohammed bin Awad bin Laden.