Back to results
US 2020/0091087 A1Published application
Semiconductor memory and semiconductor memory manufacturing method
AssigneeToshiba Memory Corporation
InventorsShinji YAMASHITA, Soichiro IBARAKI
Life of this patent
Estimating the term…
Abstract
A semiconductor memory includes a substrate having a first surface, a memory device mounted on the first surface, a controller mounted on the first surface, and a shielding layer between the first surface and at least a part of the controller, the shielding layer having a thickness that is large enough to block most of the alpha radiation from the substrate from reaching the part of the controller.
Claims19
A semiconductor memory comprising:
- a substrate having a first surface;
- a memory device mounted on the first surface;
- a controller mounted on the first surface;
- and
- a shielding layer between the first surface and at least apart of the controller, the shielding layer having a thickness that is large enough to block most of the alpha radiation from the substrate from reaching the part of the controller.
2 more elements
A semiconductor memory comprising:
- a substrate having a first surface;
- a memory device mounted on the first surface;
- and
- a controller mounted on the first surface, wherein
- the substrate includes a shielding layer at the first surface, such that at least a part of the controller is mounted on the shielding layer, the shielding layer having a thickness that is large enough to block most of the alpha radiation from the substrate from reaching the part of the controller.
2 more elements
A semiconductor memory manufacturing method, comprising:
- mounting a memory device on a first region of a substrate;
- and
- mounting a controller on a second region of the substrate, as a result of which a shielding layer supports at least a part of the controller on the second region of the substrate, the shielding layer having a thickness that is large enough to block most of the alpha radiation from the substrate from reaching the part of the controller.
Dependencies are inferred from the claim text.