Before revision: BGA with an interposer between the integrated circuit die to ball grid array Pentium II: example of an interposer , integrated circuit die to ball grid array chip carrier An interposer is an electrical interface routing between one socket or connection to another.
After revision: in dark yellowBGA with an interposer between the integrated circuit die to ball grid array Pentium II: example of an interposer , integrated circuit die to ball grid array chip carrier An interposer is an electrical interface routing between one socket or connection to another.