Semiconductor package including multiple chips and separate groups of leads
Provided is a semiconductor package including multiple semiconductor chips, and separate groups of leads connected to the semiconductor chips. The leads are exposed to the outside of the semiconductor package. The plurality of leads may include a first lead group for a first chip group and a second lead group for a second chip group. The first and second chip groups are part of the package.
1. A semiconductor package comprising:
a plurality of leads exposed to the outside of the semiconductor package,
wherein the plurality of leads comprises:
a first lead group exposed in a direction corresponding to one side of the semiconductor package and connected to a first channel line of a controller; and
a second lead group exposed in a direction corresponding to another side of the semiconductor package and connected to a second channel line of the controller,
a first semiconductor chip group of one or more semiconductor chips connected to the first lead group; and
a second semiconductor chip group of one or more semiconductor chips connected to the second lead group,
wherein no external signal connections of the first semiconductor chip group are shared with external signal connections of the second semiconductor chip group.
2. The semiconductor package of claim 1 , wherein the first semiconductor chip group comprises a first plurality of semiconductor chips stacked above a package substrate in a stepwise fashion, and
the second semiconductor chip group comprises a second plurality of semiconductor chips stacked below the package substrate in a stepwise fashion.
3. The semiconductor package of claim 2 , wherein one of the semiconductor chips of the first and second chip groups is mounted on a die paddle.
4. The semiconductor package of claim 1 , wherein the leads of the second lead group have the same lead arrangement as the leads of the first lead group.
5. The semiconductor package of claim 1 , wherein each one of the first and second lead groups comprises at least one pin of the group consisting of an I/O pin, an NC pin, an R/B pin, a CE pin, a Vcc pin, a Vss pin, and a Wp pin.
6. The semiconductor package of claim 1 , wherein the first lead group is dedicated to the first semiconductor chip group and the second lead group is dedicated to the second semiconductor chip group.
7. The semiconductor package of claim 1 ,
wherein the first lead group comprises all external leads connecting to the first semiconductor chip group,
wherein the second lead group comprises all external leads connecting to the second semiconductor group, and
wherein the first lead group is isolated from the second lead group.
8. The semiconductor package of claim 7 ,
wherein the first semiconductor chip group comprises a first plurality of semiconductor chips and at least some leads of the first lead group are connected to all of the first plurality of semiconductor chips, and
wherein the second semiconductor chip group comprises a second plurality of semiconductor chips and at least some leads of the second lead group are connected to all of the second plurality of semiconductor chips.
9. The semiconductor package of claim 1 ,
wherein the first semiconductor chip group comprises a first plurality of semiconductor chips,
wherein the second semiconductor chip group comprises a second plurality of semiconductor chips, and
wherein all chips of the first and second semiconductor chip group have a same chip pad arrangement.
10. The semiconductor package of claim 1 ,
wherein the first semiconductor chip group comprises a first plurality of semiconductor chips,
wherein the second semiconductor chip group comprises a second plurality of semiconductor chips, and
wherein all chips of the first and second semiconductor chip groups have substantially the same structure.
11. The semiconductor package of claim 1 ,
wherein the first semiconductor chip group comprises a first plurality of semiconductor chips,
wherein the second semiconductor chip group comprises a second plurality of semiconductor chips,
wherein the first lead group comprises I/O leads shared by each of the first plurality of semiconductor chips, and
wherein the first lead group comprises a power lead dedicated to a subset of the first plurality of semiconductor chips.
12. The semiconductor package of claim 1 ,
wherein the first semiconductor chip group comprises a first plurality of semiconductor chips,
wherein the second semiconductor chip group comprises a second plurality of semiconductor chips,
wherein the first lead group comprises first address leads shared by each of the first plurality of semiconductor chips,
wherein the second lead group comprises second address leads shared by each of the second plurality of semiconductor chips, and
wherein the first address leads are dedicated to the first plurality of semiconductor chips and the second address leads are dedicated to the second plurality of semiconductor chips.
13. A semiconductor package comprising:
a plurality of leads exposed to the outside,
wherein the plurality of leads comprises:
a first lead group exposed on a left side of the semiconductor package and connected to a first channel line of a controller;
a second lead group exposed on the right side of the semiconductor package and connected to a second channel line of the controller;
a third lead group exposed on a front side of the semiconductor package and connected to a third channel line of the controller; and
a fourth lead group exposed on a rear side of the semiconductor package and connected to a fourth channel line of the controller;
a first semiconductor chip group of one or more semiconductor chips connected to the first lead group;
a second semiconductor chip group of one or more semiconductor chips connected to the second lead group;
a third semiconductor chip group of one or more semiconductor chips connected to the third lead group; and
a fourth semiconductor chip group of one or more semiconductor chips connected to the fourth lead group,
wherein no external signal connections of the first semiconductor chip group are shared with external signal connections of the second semiconductor chip group, the third semiconductor chip group, or the fourth semiconductor chip group.
14. The semiconductor package of claim 13 ,
wherein the first semiconductor chip group comprises a first plurality of semiconductor chips stacked on a package substrate in a first-direction stepwise fashion,
the second semiconductor chip group comprises a second plurality of semiconductor chips stacked on the first semiconductor chip group in a second-direction stepwise fashion,
the third semiconductor chip group comprises a third plurality of semiconductor chips stacked below a die pad in a third-direction stepwise fashion, and
the fourth semiconductor chip group comprises a fourth plurality of semiconductor chips stacked below the third semiconductor chip group in a fourth-direction stepwise fashion.