Hyperelastic binder for printed, stretchable electronics
US-10143081-B2 · Nov 27, 2018 · US
Strain sensor unit and skin sensor module comprising the same
US10952642B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10952642-B2 |
| Application number | US-201715808416-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 9, 2017 |
| Priority date | Nov 9, 2017 |
| Publication date | Mar 23, 2021 |
| Grant date | Mar 23, 2021 |
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- Title
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Abstract
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A strain sensor unit and a skin sensor module comprising the same are provided. The strain sensor unit according to an embodiment of the present disclosure includes a substrate having a through-hole, and including a first electrode and a second electrode formed at one side and the other side of the through-hole on one surface of the substrate, a piezoelectric device drawn from the first electrode and extending inward the through-hole, and a piezoresistor drawn from the second electrode and extending inward the through-hole, wherein the piezoresistor overlaps with a whole or part of the piezoelectric device.
First claim
Opening claim text (preview).
What is claimed is: 1. A strain sensor unit comprising: a substrate having a through-hole; a piezoelectric device located at one side of the through-hole on the substrate, and extending toward another side of the through-hole; a piezoresistor located at another side of the through-hole on the substrate, and extending toward one side of the through-hole; a first electrode located on the piezoelectric device; and a second electrode located on the piezoresistor, wherein the piezoresistor overlaps with a whole or part of the piezoelectric device, and wherein the piezoresistor is a nanocrack-control based metal piezoresistive device. 2. The strain sensor unit according to claim 1 , wherein the piezoelectric device is a piezoelectric semiconductor. 3. The strain sensor unit according to claim 1 , wherein an interfacial layer made of amorphous oxide semiconductor is further formed on a contact surface between the piezoelectric device and the piezoresistor. 4. The strain sensor unit according to claim 1 , wherein the substrate has a plurality of air permeable holes having the diameter of 50 to 150 μm. 5. The strain sensor unit according to claim 4 , wherein a distance between the plurality of air permeable holes is 50 to 150 μm. 6. The strain sensor unit according to claim 4 , wherein the plurality of air permeable holes comprises the through-hole. 7. The strain sensor unit according to claim 1 , wherein the substrate is made of a material including polydimethylsiloxane (PDMS). 8. The strain sensor unit according to claim 1 , wherein a plurality of micro suction cups is patterned on a surface opposite to one surface of the substrate to be attached to the skin.
Assignees
Inventors
Classifications
using piezoelectric means · CPC title
of piezoresistors · CPC title
using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material · CPC title
using properties of piezoelectric devices · CPC title
Details of sensor housings or probes; Details of structural supports for sensors (A61B2560/0462 takes precedence) · CPC title
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- What does patent US10952642B2 cover?
- A strain sensor unit and a skin sensor module comprising the same are provided. The strain sensor unit according to an embodiment of the present disclosure includes a substrate having a through-hole, and including a first electrode and a second electrode formed at one side and the other side of the through-hole on one surface of the substrate, a piezoelectric device drawn from the first electro…
- Who is the assignee on this patent?
- Amorepacific Corp, Massachusetts Inst Technology
- What technology area does this patent fall under?
- Primary CPC classification A61B5/443. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Mar 23 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).