Voltage reference circuit layout inside multi-layered substrate
OwnerJimmy Hsuinventor
Life of this patent
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Abstract
A multi-layered substrate having a voltage reference signal circuit layout therein. A major change in the design of the multi-layered substrate is the moving of a voltage reference signal trace from a signal layer to a non-signaling layer. Once the voltage reference signal trace is moved, the signal traces within the signal layer can have a larger layout area. Similarly, the voltage reference signal trace within the non-signaling layer can have greater layout flexibility in addition to electromagnetic shielding from other signal traces. Moreover, the voltage reference signal trace having a greater width may be used to reduce parasitic resistance within the voltage reference signal circuit.
Claims26
A multi-layered substrate having a voltage reference signal circuit layout therein, comprising:
- a first layer having a plurality of signal traces;
- a second layer having at least one conductive plane;
- a third layer having at least one conductive plane and a voltage reference signal trace;
- and
- a fourth layer having a plurality of signal traces.
A multi-layered substrate having a voltage reference signal circuit layout therein, comprising:
- a first signal layer having a plurality of signal traces;
- a second signal layer having a plurality of signal traces;
- and
- at least one non-signaling layer between the first signal layer and the second signal layer, wherein a voltage reference signal trace is in one of the non-signaling layers.
A multi-layered substrate having a voltage reference signal circuit layout therein, comprising:
- at least one signal layer having a plurality of signal traces;
- a non-signaling layer having a voltage reference signal trace;
- and
- a conductive plane between the signal layer and the non-signaling layer.
A multi-layered substrate having a voltage reference signal circuit layout therein, comprising:
- at least one signal layer having a plurality of signal traces;
- and
- at least one non-signaling layer having a voltage reference signal trace.
Dependencies are inferred from the claim text.