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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | UP-0145574 (2005-06-02) |
등록번호 | US-7622367 (2009-12-02) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 417 인용 특허 : 52 |
The invention provides methods and devices for fabricating printable semiconductor elements and assembling printable semiconductor elements onto substrate surfaces. Methods, devices and device components of the present invention are capable of generating a wide range of flexible electronic and optoe
The invention provides methods and devices for fabricating printable semiconductor elements and assembling printable semiconductor elements onto substrate surfaces. Methods, devices and device components of the present invention are capable of generating a wide range of flexible electronic and optoelectronic devices and arrays of devices on substrates comprising polymeric materials. The present invention also provides stretchable semiconductor structures and stretchable electronic devices capable of good performance in stretched configurations.
We claim: 1. A method for assembling a printable semiconductor element on a receiving surface of a substrate, said method comprising the steps of: providing said printable semiconductor element comprising a unitary inorganic semiconductor structure; contacting said printable semiconductor element w
We claim: 1. A method for assembling a printable semiconductor element on a receiving surface of a substrate, said method comprising the steps of: providing said printable semiconductor element comprising a unitary inorganic semiconductor structure; contacting said printable semiconductor element with a conformable transfer device having a contact surface, wherein contact between said contact surface and said printable semiconductor element binds said printable semiconductor element to said contact surface, thereby forming said contact surface having said printable semiconductor element disposed thereon; contacting said printable semiconductor element disposed on said contact surface with said receiving surface of said substrate; and separating said contact surface of said conformable transfer device and said printable semiconductor element, wherein said printable semiconductor element is transferred onto said receiving surface, thereby assembling said printable semiconductor element on said receiving surface of said substrate. 2. The method of claim 1 wherein conformal contact is established between the contact surface of said conformable transfer device and an external surface of said printable semiconductor element. 3. The method of claim 1 wherein conformal contact is established between said contact surface having said printable semiconductor element disposed thereon and said receiving surface of said substrate. 4. The method of claim 1 wherein said semiconductor element disposed on said contact surface is contacted with a selected region of said receiving surface with a placement accuracy greater than or equal to about 25 microns over a receiving surface area equal to about 5 cm2. 5. The method of claim 1 wherein an adhesive layer is provided on said receiving surface, wherein said printable semiconductor element is contacted with said adhesive layer during transfer of said printable semiconductor element to said receiving surface of said substrate. 6. The method of claim 1 wherein said receiving surface of said substrate is a curved surface having a radius of curvature selected over the range of about 10 microns to about 10 meters. 7. The method of claim 1 wherein said conformable transfer device comprises an elastomeric stamp. 8. The method of claim 1 wherein said steps of: contacting said printable semiconductor element with a conformable transfer device, contacting said printable semiconductor element disposed on said contact surface with said receiving surface of said substrate; and separating said contact surface of said conformable transfer device and said printable semiconductor element comprise dry transfer printing said printable semiconductor element onto said receiving surface. 9. The method of claim 1 wherein said step of providing said printable semiconductor element comprises providing said semiconductor element in a selected orientation on a mother substrate, wherein said selected orientation of said semiconductor element is maintained during contact with said contact surface by an alignment maintaining element which couples said mother substrate and said printable semiconductor element. 10. The method of claim 9 wherein said step of contacting said printable semiconductor element disposed on said contact surface with said receiving surface of said substrate device disengages said alignment maintaining element, thereby releasing said printable semiconductor element from said mother substrate. 11. The method of claim 1 further comprising the steps of: providing additional printable semiconductor elements each of which comprising a unitary inorganic semiconductor structure; contacting said printable semiconductor elements with a conformable transfer device having a contact surface, wherein contact between said contact surface and said printable semiconductor element binds said printable semiconductor elements to said contact surface and generates said contact surface having said printable semiconductor elements disposed thereon in relative orientations comprising a selected pattern of said printable semiconductor elements; contacting said printable semiconductor elements disposed on said contact surface with said receiving surface of said substrate; and separating said contact surface of said conformable transfer device and said printable semiconductor elements, wherein said printable semiconductor elements are transferred onto said receiving surface in said relative orientations comprising said selected pattern. 12. The method of claim 11 wherein said printable semiconductors are provided on a mother substrate in said relative orientations comprising said selected pattern, and wherein said relative orientations are preserved during transfer to said receiving surface. 13. The method of claim 11 wherein said conformable transfer device establishes conformal contact between the contact surface and selected printable semiconductor elements but not all of said printable semiconductor elements, thereby generating said contact surface having said printable semiconductor element disposed thereon in said relative orientations comprising said selected pattern, and wherein said relative orientations are preserved during transfer to said receiving surface. 14. The method of claim 11 wherein a pattern of adhesive material is provided on the contact surface of said conformable transfer device, wherein said pattern of adhesive material at least partially corresponds to said selected pattern of printable semiconductor elements. 15. The method of claim 11 wherein said selected pattern of semiconductor elements is generated on said receiving surface of said substrate with good fidelity. 16. The method of claim 11 wherein said conformable transfer device has a plurality of contact surfaces having relative positions corresponding to said selected pattern. 17. The method of claim 1 wherein said substrate is a plastic substrate. 18. The method of claim 1 comprising a method for fabricating an electrical device selected from the group consisting of: a transistor; a solar cell; a photodiode; a light emitting diode; a microelectromechanical device; a nanoelectromechanical device; a laser; a P-N junction; and a complementary logic circuit.
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