Dual die memory
First Claim
1. An integrated-circuit chip having one or more pairs of reversible wire-bonding-pads to alternatively provide a standard pattern for the reversible wire-bonding-pads and a non-standard, reversed wire-bonding pattern for the reversible wire-bonding-pads, comprising:
- a first wire-bonding-pad;
a second wire-bonding-pad;
a first common signal line on said integrated-circuit chip;
a second common signal line on said integrated-circuit chip;
a first gate circuit having an input signal terminal connected to the first wire-bonding-pad, having an output signal terminal connected to the first common signal line, and having a control terminal which receives a standard wire-bonding configuration control signal which operates the first gate circuit to provide a standard pattern for the first wire-bonding-pad, which standard pattern connects the first wire-bonding-pad to the first common signal line to thereby provide the first input LOGIC signal to the first common signal line on said integrated-circuit chip;
a second gate circuit having an input signal terminal also connected to the first wire-bonding-pad, having an output signal terminal connected to the second common signal line, and having a control terminal which receives a non-standard, reversed wire-bonding configuration control signal which operates the second gate circuit to alternatively provide a non-standard, reversed pattern for the first wire-bonding-pad, which non-standard, reversed pattern connects the first wire-bonding-pad to the second common signal line to thereby alternatively provide the first input LOGIC signal to the second common signal line on said integrated-circuit chip;
a third gate circuit having an input signal terminal connected to the second wire-bonding-pad, having an output signal terminal connected to the second common signal line, and having a control terminal which receives the standard wire-bonding configuration control signal which operates the third gate circuit to provide a standard pattern for the second wire-bonding-pad, which standard pattern connects the second wire-bonding-pad to the second common signal line to thereby provide the second input LOGIC signal to the second common signal line on said integrated-circuit chip;
a fourth gate circuit having an input signal terminal also connected to the second wire-bonding-pad, having an output signal terminal connected to the first common signal line, and having a control terminal which receives the non-standard, reversed wire-bonding configuration control signal which operates the fourth gate circuit to alternatively provide a non-standard, reversed pattern for the second wire-bonding-pad, which non-standard, reversed pattern connects the second wire-bonding-pad to the first common signal line to thereby alternatively provide the second input LOGIC signal to the first common signal line on said integrated-circuit chip;
wherein the first gate circuit and the third gate circuit are controlled by the standard-bonding-pad control signal to provide a predetermined standard bonding-pad configuration for the integrated-circuit chip, which standard bonding-pad configuration connects the first wire-bonding input pad to the first common signal line on the integrated-circuit chip and which standard bonding-pad configuration also connects the second wire-bonding-pad to the second common signal line; and
whereby the second gate circuit and the fourth gate circuit are controlled by the reverse-bonding-pad control signal to provide a predetermined alternative reversed bonding-pad configuration for the integrated-circuit chip, which alternative reversed bonding-pad configuration connects the first wire-bonding-pad to the second common signal line and which alternative reversed bonding-pad configuration also connects the second wire-bonding-pad to first common signal line.
1 Assignment
0 Petitions
Accused Products
Abstract
A double-sized chip assembly and method is provided for two back-to-back integrated-circuit chips which both have the same fabrication mask sets. An electrically-selectable bonding-pad connection option alternatively provides a standard, non-reversed, option NRO for a bonding-pad layout and a non-standard, reversed option RO for the layout of the bonding-pads. The double-sized, back-to-back, wire-bonded integrated-circuit chip assembly and method includes a pair of integrated-circuit chips, each having one or more reversible wire-bonding-pads. One of the chips has its wire-bonding-pads electrically reversed such that the wire-bonding pads on both chips are located near each other to accommodate wire-bonding to a common bonding finger of a lead frame. A bonding-option wire-bonding-pad has an external voltage applied to it to indicate whether the integrated-circuit chip is to provide a standard pattern for the reversible wire-bonding-pads, or a reversed pattern for the reversible wire-bonding-pads. A voltage sensor circuit senses the voltage applied to the bonding-option wire-bonding-pad and alternatively generates either a standard NRO gate control signal or a non-standard, reversed RO gate control signal from the voltage state of the bonding-option wire-bonding-pad.
65 Citations
14 Claims
-
1. An integrated-circuit chip having one or more pairs of reversible wire-bonding-pads to alternatively provide a standard pattern for the reversible wire-bonding-pads and a non-standard, reversed wire-bonding pattern for the reversible wire-bonding-pads, comprising:
-
a first wire-bonding-pad;
a second wire-bonding-pad;
a first common signal line on said integrated-circuit chip;
a second common signal line on said integrated-circuit chip;
a first gate circuit having an input signal terminal connected to the first wire-bonding-pad, having an output signal terminal connected to the first common signal line, and having a control terminal which receives a standard wire-bonding configuration control signal which operates the first gate circuit to provide a standard pattern for the first wire-bonding-pad, which standard pattern connects the first wire-bonding-pad to the first common signal line to thereby provide the first input LOGIC signal to the first common signal line on said integrated-circuit chip;
a second gate circuit having an input signal terminal also connected to the first wire-bonding-pad, having an output signal terminal connected to the second common signal line, and having a control terminal which receives a non-standard, reversed wire-bonding configuration control signal which operates the second gate circuit to alternatively provide a non-standard, reversed pattern for the first wire-bonding-pad, which non-standard, reversed pattern connects the first wire-bonding-pad to the second common signal line to thereby alternatively provide the first input LOGIC signal to the second common signal line on said integrated-circuit chip;
a third gate circuit having an input signal terminal connected to the second wire-bonding-pad, having an output signal terminal connected to the second common signal line, and having a control terminal which receives the standard wire-bonding configuration control signal which operates the third gate circuit to provide a standard pattern for the second wire-bonding-pad, which standard pattern connects the second wire-bonding-pad to the second common signal line to thereby provide the second input LOGIC signal to the second common signal line on said integrated-circuit chip;
a fourth gate circuit having an input signal terminal also connected to the second wire-bonding-pad, having an output signal terminal connected to the first common signal line, and having a control terminal which receives the non-standard, reversed wire-bonding configuration control signal which operates the fourth gate circuit to alternatively provide a non-standard, reversed pattern for the second wire-bonding-pad, which non-standard, reversed pattern connects the second wire-bonding-pad to the first common signal line to thereby alternatively provide the second input LOGIC signal to the first common signal line on said integrated-circuit chip;
wherein the first gate circuit and the third gate circuit are controlled by the standard-bonding-pad control signal to provide a predetermined standard bonding-pad configuration for the integrated-circuit chip, which standard bonding-pad configuration connects the first wire-bonding input pad to the first common signal line on the integrated-circuit chip and which standard bonding-pad configuration also connects the second wire-bonding-pad to the second common signal line; and
whereby the second gate circuit and the fourth gate circuit are controlled by the reverse-bonding-pad control signal to provide a predetermined alternative reversed bonding-pad configuration for the integrated-circuit chip, which alternative reversed bonding-pad configuration connects the first wire-bonding-pad to the second common signal line and which alternative reversed bonding-pad configuration also connects the second wire-bonding-pad to first common signal line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
a plurality of pairs of first and second wire-bonding-pads; a plurality of pairs of first and second common signal lines which are associated with one of said first and second wire bonding-pads;
a plurality of pairs of first and second gate circuits which are associated with one of said first and second wire bonding-pads;
a plurality of pairs of third and fourth gate circuits which are associated with one of said first and second wire bonding-pads; and
wherein each of said plurality of pairs of first and second wire-bonding-pads provides a standard pattern and a non-standard, reversed pattern for each of said plurality of pairs of wire-bonding-pads for the integrated-circuit chip.
-
-
3. The integrated-circuit chip of claim 1, including
a bonding-option wire-bonding-pad adapted to having an external voltage applied thereto to indicate whether the integrated-circuit chip is to provide a standard pattern for the reversible wire-bonding-pads, or alternatively, wither the integrated-circuit chip is to provide a reversed path for the reversible wire-bonding-pads; a voltage sensor circuit for sensing the voltage applied to the bonding-option wire-bonding-pad and for alternatively generating either a standard NRO gate control signal or a non-standard, reversed RO gate control signal from the voltage state of the bonding-option wire-bonding-pad.
-
4. The integrated-circuit chip of claim 3, including
two or more bonding-option wire-bonding-pads, each of which are adapted to having an external voltage applied thereto; -
one or more voltage sensor circuits for respectively sensing the voltage applied to a respective bonding-option wire-bonding-pad;
a bonding option logic signal array for generating one or more bonding option logic signals; and
a logic circuit for generating standard NRO and non-standard, reversed RO gate control signals from the one or more bonding option logic signals.
-
-
5. The integrated-circuit chip of claim 4, including three bonding-option wire-bonding-pads which are adapted to having an external voltage applied thereto such that the logic circuit for generating standard NRO and non-standard, reversed RO gate control signals generates the standard NRO and non-standard, reversed RO gate control signals.
-
6. The integrated-circuit chip of claim 1 wherein the gate circuits includes a logic circuit which has a first signal input terminal connected to one of the wire-bonding-pads, which has a second control signal input terminal which receives a wire-bonding configuration control signal to operate the gate circuit, and which has an output terminal coupled to one of the common signal lines.
-
7. The integrated-circuit chip of claim 6 wherein the gate circuits include a chip enable input terminal for receiving a chip enable signal CE to activate the gate circuits.
-
8. The integrated-circuit chip of claim 6:
-
wherein the logic circuit includes a first logic gate, having an input terminal connected to a first signal input terminal, having a second input terminal connected to the second control signal input terminal, and having an output terminal connected to an input terminal of the output driver circuit; and
wherein the logic circuit includes a second logic gate, having an input terminal connected through an inverter to the first signal input terminal, having a second input terminal connected through an inverter to the second control signal input terminal, and having an output terminal connected to an input terminal of the output driver circuit.
-
-
9. The integrated-circuit chip of claim 8 wherein the first logic gate includes a NAND gate and wherein the second logic gate includes a NOR gate.
-
10. The integrated-circuit chip of claim 9 wherein the first logic gate has an input terminal for receiving a chip enable signal CE and wherein the second logic gate has an input terminal for receiving an inverted chip enable signal.
-
11. The integrated-circuit chip of claim 9 wherein the logic circuit includes an output driver circuit having an input terminal and having an output terminal connected to one of the common signal lines.
-
12. The integrated-circuit chip of claim 11 wherein the output driver circuit includes a complementary-transistor output amplifier.
-
13. The integrated-circuit chip of claim 12 wherein the complementary transistor amplifier includes a p-channel transistor having a gate terminal connected to an output terminal of the NAND gate and a N-channel transistor connected to an output terminal of the NOR gate.
-
14. The integrated-circuit chip of claim 1 wherein the first and the second wire-bonding-pads are adapted to be connected to external control signals for the integrated-circuit chip.
Specification