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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | UP-0228812 (2008-08-14) |
등록번호 | US-7759953 (2010-08-09) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 6 인용 특허 : 966 |
A probe suitable for probing a semiconductor wafer that includes an active circuit. The probe may include a flexible interconnection between the active circuit and a support structure. The probe may impose a relatively low capacitance on the device under test.
The invention claimed is: 1. A probe for testing a device under test comprising: (a) an elongate tapered probing element; (b) an active circuit having an input with a first impedance, of more than 1,000 ohms and less than 1,000 fF, electrically interconnected to said probing element and a second in
The invention claimed is: 1. A probe for testing a device under test comprising: (a) an elongate tapered probing element; (b) an active circuit having an input with a first impedance, of more than 1,000 ohms and less than 1,000 fF, electrically interconnected to said probing element and a second input; (c) a flexible structure interconnecting said active circuit and a supporting structure such that when said probing element comes into contact with said device under test said flexible structure flexes and said active circuit moves relative to said supporting structure before said probing element is substantially deflected; (d) a transmission structure electrically interconnected to said second input. 2. The probe of claim 1 wherein said first impedance has a resistance greater than 500 K Ohms. 3. The probe of claim 1 wherein said first impedance has a resistance greater than 1,000 K Ohms. 4. The probe of claim 1 wherein said first impedance has a capacitance less than 25 fF. 5. The probe of claim 1 wherein said supporting structure includes said transmission structure and said flexible structure includes the same class of transmission structure.
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