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US 2020/0287376 A1Published application
Semiconductor Device
AssigneeRohm Co., Ltd.
InventorsMakoto Yasusaka, Isamu IWAHASHI, Kotaro Iwata
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Abstract
A semiconductor device includes, for example, an external terminal, an output element, a detecting element configured to detect occurrence of a negative voltage at the external terminal, and an off-circuit configured to forcibly turn off the output element when the detecting element detects occurrence of the negative voltage.
Claims30
A semiconductor device comprising:
- an external terminal;
- an output element;
- a detecting element configured to detect occurrence of a negative voltage at the external terminal;
- and
- an off-circuit configured to forcibly turn off the output element when the detecting element detects occurrence of the negative voltage.
2 more elements
A semiconductor device comprising:
- an external terminal;
- an output element;
- a first semiconductor region connected to the external terminal;
- a second semiconductor region forming an internal circuit;
- a third semiconductor region formed closer to the first semiconductor region than the second semiconductor region is;
- and
- an off-circuit configured to forcibly turn off the output element when a parasitic element formed between the first and third semiconductor regions turns on.
4 more elements
A semiconductor device comprising:
- an external terminal;
- an output element;
- a parasitic factor element;
- a first element which, along with the parasitic factor element, forms a parasitic element that operates so as to turn on the output element when a negative voltage occurs at the external terminal;
- and
- a second element which, along with the parasitic factor element, forms a parasitic element that operates so as to turn off the output element when a negative voltage occurs at the external terminal,
- wherein
- the second element comprises at least one second element formed closer to the parasitic factor element than the first element is.
5 more elements
A semiconductor device comprising:
- an external terminal;
- a parasitic factor element,
- a first element which, along with the parasitic factor element, forms a parasitic element that operates so as to impair functional safety when a negative voltage occurs at the external terminal;
- and
- a second element which, along with the parasitic factor element, forms a parasitic element that operates so as to contribute to functional safety when a negative voltage occurs at the external terminal,
- wherein
- the second element comprises at least one second element formed closer to the parasitic factor element than the first element is.
4 more elements
Dependencies are inferred from the claim text.