Variable resistor
AssigneeFujikura Ltd.
InventorMasami Watanabe
Life of this patent
Estimating the term…
Abstract
A variable resistor includes: a first substrate having a first main surface; a resistor disposed on the first main surface; a first wiring pattern disposed on the first main surface and connected to the resistor; a spacer having an opening; a second substrate that: has second and third main surfaces, and is disposed on the first substrate via the spacer such that the second main surface is opposed to the first main surface; a connecting body that is: disposed on the second main surface such that the connecting body is disposed in the opening, and configured to electrically connect to the resistor by pushing of a pusher from the third main surface; and a second wiring pattern. A resistance value between the first wiring pattern and the second wiring pattern is changed based on a pushing position of the pusher.
Claims10
A variable resistor, comprising:
- a first substrate having a first main surface;
- a resistor disposed on the first main surface;
- a first wiring pattern disposed on the first main surface and connected to the resistor;
- a spacer having an opening;
- a second substrate that:
- has second and third main surfaces, and
- is disposed on the first substrate via the spacer such that the second main surface is opposed to the first main surface;
- a connecting body that is:
- disposed on the second main surface such that the connecting body is disposed in the opening, and
- configured to electrically connect to the resistor by pushing of a pusher from the third main surface;
- and
- a second wiring pattern that is either:
- disposed on the first main surface and configured to be electrically connected to the connecting body by the pushing of the pusher;
- or
- disposed on the second main surface and connected to the connecting body, wherein
- in a plan view, the connecting body has a non-overlap region that does not overlap with the resistor,
- in a plan view, a pushing region in which the pusher can push is included in the non-overlap region, and
- a resistance value between the first wiring pattern and the second wiring pattern is changed based on a pushing position of the pusher,
- in a plan view, the connecting body partially overlaps with the resistor,
- in a plan view, the pushing region does not overlap with the resistor, and
- the connecting body contacts the resistor by the pushing of the pusher from the third main surface.
A variable resistor, comprising:
- a first substrate having a first main surface;
- a resistor disposed on the first main surface;
- a first wiring pattern disposed on the first main surface and connected to the resistor;
- a spacer having an opening;
- a second substrate that:
- has second and third main surfaces, and
- is disposed on the first substrate via the spacer such that the second main surface is opposed to the first main surface;
- a connecting body that is:
- disposed on the second main surface such that the connecting body is disposed in the opening, and
- configured to electrically connect to the resistor by pushing of a pusher from the third main surface;
- and
- a second wiring pattern that is either:
- disposed on the first main surface and configured to be electrically connected to the connecting body by the pushing of the pusher;
- or
- disposed on the second main surface and connected to the connecting body, wherein
- in a plan view, the connecting body has a non-overlap region that does not overlap with the resistor,
- in a plan view, a pushing region in which the pusher can push is included in the non-overlap region,
- a resistance value between the first wiring pattern and the second wiring pattern is changed based on a pushing position of the pusher,
- the variable resistor further comprises first comb tooth patterns disposed on the first main surface and connected to the resistor,
- in plan view, the first comb tooth patterns overlap with the pushing region,
- a material of which the resistor is made has an electrical resistivity higher than an electrical resistivity of a material of which the first comb tooth patterns are made,
- the second wiring pattern is disposed on the first main surface,
- the variable resistor further comprises second comb tooth patterns disposed on the first main surface and connected to the second wiring pattern,
- in a plan view, the second comb tooth patterns overlap with the pushing region,
- a material of which the resistor is made has an electrical resistivity higher than an electrical resistivity of a material of which the second comb tooth patterns are made, and
- the connecting body contacts the first comb tooth pattern and the second comb tooth pattern by the pushing of the pusher from the third main surface.
A variable resistor, comprising:
- a first substrate having a first main surface;
- a resistor disposed on the first main surface;
- a first wiring pattern disposed on the first main surface and connected to the resistor;
- a spacer having an opening;
- a second substrate that:
- has second and third main surfaces, and
- is disposed on the first substrate via the spacer such that the second main surface is opposed to the first main surface;
- a connecting body that is:
- disposed on the second main surface such that the connecting body is disposed in the opening, and
- configured to electrically connect to the resistor by pushing of a pusher from the third main surface;
- and
- a second wiring pattern that is either:
- disposed on the first main surface and configured to be electrically connected to the connecting body by the pushing of the pusher;
- or
- disposed on the second main surface and connected to the connecting body, wherein
- in a plan view, the connecting body has a non-overlap region that does not overlap with the resistor,
- in a plan view, a pushing region in which the pusher can push is included in the non-overlap region,
- a resistance value between the first wiring pattern and the second wiring pattern is changed based on a pushing position of the pusher,
- the variable resistor further comprises first comb tooth patterns disposed on the first main surface and connected to the resistor,
- in plan view, the first comb tooth patterns overlap with the pushing region,
- a material of which the resistor is made has an electrical resistivity higher than an electrical resistivity of a material of which the first comb tooth patterns are made,
- the second wiring pattern is disposed on the first main surface,
- in plan view, the connecting body partially overlaps with the second wiring pattern, and
- the connecting body contacts the first comb tooth patterns and the second wiring pattern by the pushing of the pusher from the third main surface.
A variable resistor, comprising:
- a first substrate having a first main surface;
- a resistor disposed on the first main surface;
- a first wiring pattern disposed on the first main surface and connected to the resistor;
- a spacer having an opening;
- a second substrate that:
- has second and third main surfaces, and
- is disposed on the first substrate via the spacer such that the second main surface is opposed to the first main surface;
- a connecting body that is:
- disposed on the second main surface such that the connecting body is disposed in the opening, and
- configured to electrically connect to the resistor by pushing of a pusher from the third main surface;
- and
- a second wiring pattern that is either:
- disposed on the first main surface and configured to be electrically connected to the connecting body by the pushing of the pusher;
- or
- disposed on the second main surface and connected to the connecting body, wherein
- in a plan view, the connecting body has a non-overlap region that does not overlap with the resistor,
- in a plan view, a pushing region in which the pusher can push is included in the non-overlap region,
- a resistance value between the first wiring pattern and the second wiring pattern is changed based on a pushing position of the pusher,
- the variable resistor further comprises first comb tooth patterns disposed on the first main surface and connected to the resistor,
- in plan view, the first comb tooth patterns overlap with the pushing region,
- a material of which the resistor is made has an electrical resistivity higher than an electrical resistivity of a material of which the first comb tooth patterns are made,
- the variable resistor further comprises:
- a third wiring pattern connected to the resistor;
- a third comb tooth pattern connected to the first wiring pattern;
- and
- a fourth comb tooth pattern connected to the third wiring pattern, and
- in a plan view, the third and fourth comb tooth patterns overlap with the pushing region.
A variable resistor, comprising:
- a first substrate having a first main surface;
- a resistor disposed on the first main surface;
- a first wiring pattern disposed on the first main surface and connected to the resistor;
- a spacer having an opening;
- a second substrate that:
- has second and third main surfaces, and
- is disposed on the first substrate via the spacer such that the second main surface is opposed to the first main surface;
- a connecting body that is:
- disposed on the second main surface such that the connecting body is disposed in the opening, and
- configured to electrically connect to the resistor by pushing of a pusher from the third main surface;
- and
- a second wiring pattern that is either:
- disposed on the first main surface and configured to be electrically connected to the connecting body by the pushing of the pusher;
- or
- disposed on the second main surface and connected to the connecting body, wherein
- in a plan view, the connecting body has a non-overlap region that does not overlap with the resistor,
- in a plan view, a pushing region in which the pusher can push is included in the non-overlap region,
- a resistance value between the first wiring pattern and the second wiring pattern is changed based on a pushing position of the pusher,
- the variable resistor further comprises first comb tooth patterns disposed on the first main surface and connected to the resistor,
- in plan view, the first comb tooth patterns overlap with the pushing region,
- a material of which the resistor is made has an electrical resistivity higher than an electrical resistivity of a material of which the first comb tooth patterns are made,
- the variable resistor further comprises a resin layer covering at least a part of the resistor, and
- at least one of the resin layer and the spacer covers the whole resistor.
A variable resistor, comprising:
- a first substrate having a first main surface;
- a resistor disposed on the first main surface;
- a first wiring pattern disposed on the first main surface and connected to the resistor;
- a spacer having an opening;
- a second substrate that:
- has second and third main surfaces, and
- is disposed on the first substrate via the spacer such that the second main surface is opposed to the first main surface;
- a connecting body that is:
- disposed on the second main surface such that the connecting body is disposed in the opening, and
- configured to electrically connect to the resistor by pushing of a pusher from the third main surface;
- and
- a second wiring pattern that is either:
- disposed on the first main surface and configured to be electrically connected to the connecting body by the pushing of the pusher;
- or
- disposed on the second main surface and connected to the connecting body, wherein
- in a plan view, the connecting body has a non-overlap region that does not overlap with the resistor,
- in a plan view, a pushing region in which the pusher can push is included in the non-overlap region,
- a resistance value between the first wiring pattern and the second wiring pattern is changed based on a pushing position of the pusher,
- the variable resistor further comprises first comb tooth patterns disposed on the first main surface and connected to the resistor,
- in plan view, the first comb tooth patterns overlap with the pushing region,
- a material of which the resistor is made has an electrical resistivity higher than an electrical resistivity of a material of which the first comb tooth patterns are made,
- the second wiring pattern is disposed on the second main surface and is connected to the connecting body,
- the connecting body contacts the first comb tooth pattern by the pushing of the pusher from the third main surface,
- the first comb tooth patterns are arranged substantially at equal intervals along an extending direction of the connecting body in the pushing region, and
- a pushing portion of the pusher that contacts the third surface has a dimension larger than a pitch of the first comb tooth patterns adjacent to each other in a direction in which the first comb tooth patterns are arranged.
Dependencies are inferred from the claim text.