RLINK-ON-DIE INTERCONNECT FEATURES TO ENABLE SIGNALING
First Claim
1. An integrated circuit chip comprising:
- a data signal circuit disposed on a horizontal inner level within the chip;
a data signal surface contact disposed on an exposed horizontal surface of the chip;
a data signal leadway (LDW) trace vertically disposed on a LDW trace horizontal level of the chip between the horizontal inner level and the exposed horizontal surface;
the data signal LDW trace having a first end, a second end opposite the first end, and a horizontal length between the first end and the second end;
the first end coupled to the circuit and the second end coupled to the surface contact, wherein the length is between 50 um and 500 um.
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Abstract
Integrated circuit (IC) chip “on-die” interconnection features (and methods for their manufacture) may improve signal connections and transmission through a data signal communication channel from one chip, through semiconductor device packaging, and to another component, such as another chip. Such chip interconnection features may include (1) “last silicon metal level (LSML)” data signal “leadway (LDW) routing” traces isolated between LSLM isolation (e.g., power and/or ground) traces to: (2) add a length of the isolated data signal LDW traces to increase a total length of and tune data signal communication channels extending through a package between two communicating chips and (3) create switched buffer (SB) pairs of data signal channels that use the isolated data signal LDW traces to switch the locations of the pairs data signal circuitry and surface contacts for packaging connection bumps.
3 Citations
23 Claims
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1. An integrated circuit chip comprising:
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a data signal circuit disposed on a horizontal inner level within the chip; a data signal surface contact disposed on an exposed horizontal surface of the chip; a data signal leadway (LDW) trace vertically disposed on a LDW trace horizontal level of the chip between the horizontal inner level and the exposed horizontal surface;
the data signal LDW trace having a first end, a second end opposite the first end, and a horizontal length between the first end and the second end;
the first end coupled to the circuit and the second end coupled to the surface contact, wherein the length is between 50 um and 500 um. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An integrated circuit chip comprising:
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a first data signal circuit disposed on a horizontal inner level within the chip; a first data signal surface contact disposed on an exposed horizontal surface of the chip; a first data signal leadway (LDW) trace vertically disposed on a LDW trace horizontal level of the chip between the horizontal inner level and the exposed horizontal surface;
the first data signal LDW trace having a first end, a second end opposite the first end, and a horizontal length between the first end and the second end;
the first end coupled to the first circuit and the second end coupled to the first surface contact;a second data signal LDW trace vertically disposed on the LDW trace horizontal level of the chip;
the second data signal LDW trace having a first end, a second end opposite the first end, and the horizontal length between the first end and the second end; andan isolation signal LDW trace vertically disposed on the LDW trace horizontal level of the chip;
the isolation signal LDW trace having a first end, a second end opposite the first end, and the horizontal length between the first end and the second end;
the isolation signal LDW trace horizontally disposed on the LDW trace level between the first data signal LDW trace and the second data signal LDW trace, wherein the length is between 50 um and 500 um. - View Dependent Claims (18, 19)
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20. An electronic system comprising:
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a first integrated circuit chip having; a data signal transmitter circuit disposed on an inner level within the first chip; a data signal transmit surface contact disposed on an exposed surface of the first chip; a transmit data signal LDW trace having a first end, a second end opposite the first end, and a first length between its first end and its second end;
the first end coupled to the transmitter circuit and the second end coupled to the transmit surface contact of the first chip;a second integrated circuit chip having; a data signal receive circuit disposed on an inner level within the second chip; a data signal receive surface contact disposed on an exposed surface of the second chip; a receive data leadway (LDW) trace having a first end, a second end opposite the first end, and a second length between its first end and its second end;
the first end coupled to the receive circuit and the second end coupled to the receive surface contact of the second chip; anda chip package electrically coupling the data signal transmit surface contact of the first chip to the data signal receive surface contact of the second chip. - View Dependent Claims (21, 22, 23)
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Specification