Abstract:
A system and method is disclosed for providing a redistribution metal layer in an integrated circuit. The redistribution metal layer is formed from the last metal layer in the integrated circuit during manufacture of the integrated circuit before final passivation is applied. The last metal layer provides sites for solder bump pads used in flip chip interconnection. The redistribution metal layer can be (1) a flat layer deposited over the next to last metal layer through an opening in a dielectric layer, or (2) deposited over an array of vias connected to the next to last metal layer. Space between the solder bump pads is deposited with narrower traces for connecting active circuit areas below. A final passivation layer is deposited to ensure product reliability.
Abstract:
PROBLEM TO BE SOLVED: To provide a new apparatus and method for input and output control reducing the time required for the input and output process of an on-chip memory unit via a JTAG port. SOLUTION: A signal indicating whether a memory unit is in a state where it is capable of the input and output process (ready state) or in a state where it is not capable of the input and output process (busy state) is received. When a display enters the ready state, instructions for performing the next input and output process of the memory unit (read, write data of such as programs, delete, verify, etc.) are issued so as to control the input and output process of the on-chip memory unit. COPYRIGHT: (C)2010,JPO&INPIT