US 2025/0029933 A1Published application

Electronic device

AssigneeRenesas Electronics Corporation

InventorsRyuichi OIKAWA, Shuuichi KARIYAZAKI

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Abstract

The performance of an electronic device can be improved. The electronic device includes a wiring substrate, a semiconductor memory device disposed on the wiring substrate, and a semiconductor control device disposed on the wiring substrate. The wiring substrate includes a first fixed potential wiring and a second fixed potential wiring, and a plurality of signal wirings arranged between the first fixed potential wiring and the second fixed potential wiring. The plurality of signal wirings includes a first signal wiring adjacent to the first fixed potential wiring, a second signal wiring adjacent to the first signal wiring, and a third signal wiring adjacent to the second signal wiring. A first distance between the first signal wiring and the second signal wiring is smaller than a second distance between the second signal wiring and the third signal wiring.

Claims17

Dependent claims

An electronic device comprising:

a wiring substrate;
a first semiconductor device disposed on the wiring substrate;
and
a second semiconductor device disposed on the wiring substrate and controlling the first semiconductor device,
wherein the wiring substrate includes:
a first fixed potential wiring;
a second fixed potential wiring;
and
a plurality of signal wirings arranged between the first fixed potential wiring and the second fixed potential wiring in plan view, the plurality of signal wirings being a wiring for transmitting a signal between the first semiconductor device and the second semiconductor device, wherein the plurality of signal wirings includes:
a first signal wiring adjacent to the first fixed potential wiring;
a second signal wiring adjacent to the first signal wiring;
and
a third signal wiring adjacent to the second signal wiring,
wherein the first signal wiring is arranged between the second signal wiring and the first fixed potential wiring,
wherein the second signal wiring is arranged between the third signal wiring and the first signal wiring, and
wherein a first distance between the first signal wiring and the second signal wiring is smaller than a second distance between the second signal wiring and the third signal wiring.

13 more elements

An electronic device comprising:

a wiring substrate;
a first semiconductor device disposed on the wiring substrate;
and
a second semiconductor device disposed on the wiring substrate and controlling the first semiconductor device,
wherein the wiring substrate includes:
a first fixed potential wiring;
a second fixed potential wiring;
and
a plurality of signal wirings arranged between the first fixed potential wiring and the second fixed potential wiring in a plan view, the plurality of signal wirings being a wiring for transmitting a signal between the first semiconductor device and the second semiconductor device, wherein the plurality of signal wirings includes:
a first differential pair comprised of a first signal wiring and a second signal wiring, the first differential pair being adjacent to the first fixed potential wiring;
a second differential pair comprised of a third signal wiring and a fourth signal wiring, the second differential pair being adjacent to the first differential pair;
and
a third differential pair comprised of a fifth signal wiring and a sixth signal wiring, the third differential pair being adjacent to the second differential pair,
wherein the first differential pair is arranged between the second differential pair and the first fixed potential wiring,
wherein the second differential pair is arranged between the third differential pair and the first differential pair, and
wherein a first distance between the first differential pair and the second differential pair is smaller than a second distance between the second differential pair and the third differential pair.

13 more elements

Dependencies are inferred from the claim text.