Chip resistor
AssigneeRohm Co., Ltd.
InventorTakuya Maekawa
Life of this patent
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Abstract
A chip resistor includes a substrate, a first electrode, a second electrode, a first resistor body, a second resistor body, and a connection electrode. The substrate includes a first primary surface. The first electrode includes a first terminal electrode and a first auxiliary electrode. The second electrode includes a second terminal electrode and a second auxiliary electrode. The first auxiliary electrode has a larger area than the first terminal electrode and the second auxiliary electrode has a larger area than the second terminal electrode, in plan view of the first primary surface of the substrate.
Claims19
A chip resistor, comprising:
- a substrate which includes a primary surface, a first end surface connected to the primary surface, and a second end surface connected to the primary surface;
- a first electrode disposed on a first end surface side of the substrate;
- a second electrode disposed on a second end surface side of the substrate;
- a first resistor body disposed on the primary surface;
- a second resistor body disposed on the primary surface and spaced apart from the first resistor body in a longitudinal direction of the substrate in which the first end surface and the second end surface are spaced apart from each other;
- and
- a connection electrode that is disposed on the primary surface and electrically connects in series the first resistor body and the second resistor body, wherein
- the first electrode includes a first terminal electrode and a first auxiliary electrode,
- the first terminal electrode is disposed on the primary surface and connected to the first resistor body,
- the first auxiliary electrode is connected to the first terminal electrode,
- the second electrode includes a second terminal electrode and a second auxiliary electrode,
- the second terminal electrode is disposed on the primary surface and connected to the second resistor body,
- the second auxiliary electrode is connected to the second terminal electrode,
- the first auxiliary electrode has a larger area than the first terminal electrode and the second auxiliary electrode has a larger area than the second terminal electrode, in plan view of the primary surface,
- a first gap between the first resistor body and the first end surface in the longitudinal direction of the substrate in the plan view of the primary surface is less than or equal to 0.3 mm when a dimension of the substrate in the longitudinal direction of the substrate is greater than or equal to 1.6 mm, and less than or equal to 0.15 mm when the dimension of the substrate in the longitudinal direction of the substrate is greater than or equal to 0.6 mm and less than 1.6 mm, and
- a second gap between the second resistor body and the second end surface in the longitudinal direction of the substrate in the plan view of the primary surface is less than or equal to 0.3 mm when the dimension of the substrate in the longitudinal direction of the substrate is greater than or equal to 1.6 mm, and less than or equal to 0.15 mm when the dimension of the substrate in the longitudinal direction of the substrate is greater than or equal to 0.6 mm and less than 1.6 mm.
A chip resistor, comprising:
- a substrate which includes a primary surface, a first end surface connected to the primary surface, and a second end surface connected to the primary surface;
- a first electrode disposed on a first end surface side of the substrate;
- a second electrode disposed on a second end surface side of the substrate;
- a first resistor body disposed on the primary surface;
- a second resistor body disposed on the primary surface and spaced apart from the first resistor body in a longitudinal direction of the substrate in which the first end surface and the second end surface are spaced apart from each other;
- a connection electrode that is disposed on the primary surface and electrically connects in series the first resistor body and the second resistor body;
- and
- an insulating protective film covering the first resistor body and the second resistor body, wherein
- the first electrode includes a first terminal electrode and a first auxiliary electrode,
- the first terminal electrode is disposed on the primary surface and connected to the first resistor body,
- the first auxiliary electrode is connected to the first terminal electrode,
- the second electrode includes a second terminal electrode and a second auxiliary electrode,
- the second terminal electrode is disposed on the primary surface and connected to the second resistor body,
- the second auxiliary electrode is connected to the second terminal electrode,
- the first auxiliary electrode has a larger area than the first terminal electrode and the second auxiliary electrode has a larger area than the second terminal electrode, in plan view of the primary surface,
- the insulating protective film is disposed between the first auxiliary electrode and the first resistor body and between the second auxiliary electrode and the second resistor body,
- the first auxiliary electrode and the first terminal electrode overlap the insulating protective film and the second auxiliary electrode and the second terminal electrode overlap the insulating protective film, in the plan view of the substrate,
- a third overlap width between the first auxiliary electrode and the insulating protective film in the longitudinal direction of the substrate is greater than a fourth overlap width between the first terminal electrode and the insulating protective film in the longitudinal direction of the substrate, and
- a fifth overlap width between the second auxiliary electrode and the insulating protective film in the longitudinal direction of the substrate is greater than a sixth overlap width between the second terminal electrode and the insulating protective film in the longitudinal direction of the substrate.
A chip resistor, comprising:
- a substrate which includes a primary surface, a first end surface connected to the primary surface, and a second end surface connected to the primary surface;
- a first electrode disposed on a first end surface side of the substrate;
- a second electrode disposed on a second end surface side of the substrate;
- a first resistor body disposed on the primary surface;
- a second resistor body disposed on the primary surface and spaced apart from the first resistor body in a longitudinal direction of the substrate in which the first end surface and the second end surface are spaced apart from each other;
- and
- a connection electrode which is disposed on the primary surface and electrically connects in series the first resistor body and the second resistor body, wherein
- the first electrode includes a first terminal electrode,
- the first terminal electrode is disposed on the primary surface and connected to the first resistor body,
- the second electrode includes a second terminal electrode,
- the second terminal electrode is disposed on the primary surface and connected to the second resistor body,
- a first gap between the first resistor body and the first end surface in the longitudinal direction of the substrate in plan view of the primary surface is less than or equal to 0.3 mm when a dimension of the substrate in the longitudinal direction of the substrate is greater than or equal to 1.6 mm, and less than or equal to 0.15 mm when the dimension of the substrate in the longitudinal direction of the substrate is greater than or equal to 0.6 mm and less than 1.6 mm, and
- a second gap between the second resistor body and the second end surface in the longitudinal direction of the substrate in in the plan view of the primary surface is less than or equal to 0.3 mm when the dimension of the substrate in the longitudinal direction of the substrate is greater than or equal to 1.6 mm, and less than or equal to 0.15 mm when the dimension of the substrate in the longitudinal direction of the substrate is greater than or equal to 0.6 mm and less than 1.6 mm.
A chip resistor, comprising:
- a substrate which includes a primary surface, a first end surface connected to the primary surface, and a second end surface connected to the primary surface;
- a first electrode disposed on a first end surface side of the substrate;
- a second electrode disposed on a second end surface side of the substrate;
- a first resistor body disposed on the primary surface;
- a second resistor body disposed on the primary surface and spaced apart from the first resistor body in a longitudinal direction of the substrate in which the first end surface and the second end surface are spaced apart from each other;
- and
- a connection electrode that is disposed on the primary surface and electrically connects in series the first resistor body and the second resistor body, wherein
- the first electrode includes a first terminal electrode and a first auxiliary electrode,
- the first terminal electrode is disposed on the primary surface and connected to the first resistor body,
- the first auxiliary electrode is connected to the first terminal electrode,
- the second electrode includes a second terminal electrode and a second auxiliary electrode,
- the second terminal electrode is disposed on the primary surface and connected to the second resistor body,
- the second auxiliary electrode is connected to the second terminal electrode,
- the first auxiliary electrode has a larger area than the first terminal electrode and the second auxiliary electrode has a larger area than the second terminal electrode, in plan view of the primary surface,
- a first trimming groove is formed in the first resistor body, and
- a shortest distance between the first end surface and the first trimming groove in the longitudinal direction of the substrate is less than or equal to a sum of a first gap between the first resistor body and the first end surface in the longitudinal direction of the substrate and one third of a dimension of the first resistor body in the longitudinal direction of the substrate.
Dependencies are inferred from the claim text.