Aluminum wire bonding is a process similar to gold wire bonding but with the critical distinction that the surface does not need to be heated to 150°C or even anything above room temperature. Force and ultrasonics are vital to the formation of aluminum bonds. The creation of an aluminum wire bond is the same as for gold wire, which consists of two attachment points and a specific loop shape. During the attachment steps for the wire, the only factors needed for the bond are force and ultrasonics, as the surface does not need to be heated.
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