Printable 3D electronic components and structures
An example of a printable electronic component includes a component substrate having a connection post side and an opposing contact pad side. The component can include one or more non-planar, electrically conductive connection posts protruding from the connection post side of the component substrate. Each of the one or more connection posts can have a peak area smaller than a base area. The component can include one or more non-planar, electrically conductive exposed component contact pads disposed on (e.g., directly on, indirectly on, or in) the contact pad side of the component substrate. Multiple components can be stacked such that connection post(s) of one are in contact with non-planar contact(s) of one or more others.
1. A printed electronic component structure, comprising a first printable electronic component and a second printable electronic component, the first printable electronic component and the second printable electronic component each comprising
a component substrate having a connection post side and an opposing contact pad side;
one or more non-planar, electrically conductive connection posts protruding from the connection post side of the component substrate, wherein each of the one or more connection posts has a peak area smaller than a base area; and
one or more non-planar, electrically conductive exposed component contact pads disposed on the contact pad side of the component substrate,
wherein at least one component contact pad of the one or more component contact pads extends into the component substrate through the component contact pad side to form an indented component contact pad having a recess, and
wherein a connection post of the one or more connection posts of the second printable electronic component is inserted into the recess and electrically connected to a component contact pad of the one or more component contact pads of the first printable electronic component.
2. The printed electronic component structure of claim 1 , wherein in least one of the first printable electronic component and the second printable electronic component, at least one component contact pad of the one or more component contact pads has a peak area smaller than a base area.
3. The printed electronic component structure of claim 1 , wherein in least one of the first printable electronic component and the second printable electronic component, (i) at least one component contact pad of the one or more component contact pads has a recessed sharp point, (ii) at least one connection post of the one or more connection posts has a sharp point, or (iii) both (i) and (ii).
4. The printed electronic component structure of claim 1 , wherein in least one of the first printable electronic component and the second printable electronic component, at least one of the one or more component contact pads is disposed at least partially directly over at least one of the one or more connection posts.
5. The printed electronic component structure of claim 1 , wherein in least one of the first printable electronic component and the second printable electronic component, a distal end of at least one of the one or more component contact pads furthest from the component contact pad side is disposed substantially directly over a distal end of at least one of the one or more connection posts furthest from the connection post side in a direction orthogonal to the connection post side or the contact pad side.
6. The printed electronic component structure of claim 1 , comprising an active circuit formed in a semiconductor circuit substrate separate from the component substrate of the first printable electronic component and the component substrate of the second printable electronic component, wherein the semiconductor circuit substrate is disposed in or on the component substrate of the first printable electronic component or the second printable electronic component.
7. The printed electronic component structure of claim 6 , wherein in least one of the first printable electronic component and the second printable electronic component, (i) at least one component contact pad of the one or more component contact pads is electrically connected to the active circuit, (ii) at least one of the connection posts of the one or more connection posts is electrically connected to the active circuit, or (iii) both (i) and (ii).
8. The printed electronic component structure of claim 6 , wherein at least one component contact pad of the one or more component contact pads is disposed adjacent to the semiconductor circuit substrate on the component substrate of the first printable electronic component or the second printable electronic component on or in which the semiconductor circuit substrate is disposed.
9. The printed electronic component structure of claim 1 , wherein in least one of the first printable electronic component and the second printable electronic component, at least one component contact pad of the one or more component contact pads is directly electrically connected to at least one connection post of the one or more connection posts.
10. The printed electronic component structure of claim 1 , wherein in least one of the first printable electronic component and the second printable electronic component, at least one component contact pad of the one or more component contact pads has a shape substantially similar to a shape of at least one connection post of the one or more connection posts.
11. The printed electronic component structure of claim 1 , wherein in least one of the first printable electronic component and the second printable electronic component, at least one component contact pad of the one or more component contact pads has a surface with a profile substantially similar to a profile of a surface of at least one connection post of the one or more connection posts.
12. The printed electronic component structure of claim 1 , wherein in least one of the first printable electronic component and the second printable electronic component, the component substrate has at least one of a width, a length, and a height from 1 to 50 μm.
13. The printed electronic component structure of claim 1 , wherein in least one of the first printable electronic component and the second printable electronic component, the component substrate comprises a fractured or separated tether.