최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0975937 (2007-10-22) |
등록번호 | US-7417446 (2008-08-26) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 9 인용 특허 : 907 |
A direct current and a modulation signal are simultaneously applied to contact pads on a device under test, such as a laser diode, with a probe that reduces signal distortion and power dissipation by transmitting a modulated signal through an impedance matching resistor and transmitting of a direct
A direct current and a modulation signal are simultaneously applied to contact pads on a device under test, such as a laser diode, with a probe that reduces signal distortion and power dissipation by transmitting a modulated signal through an impedance matching resistor and transmitting of a direct current over a second signal path that avoids the impedance matching resistor.
We claim: 1. A method of testing a device-under-test, said method comprising the steps of: (a) engaging a contact pad of said device-under-test with a signal contact tip of a probe testing apparatus; (b) connecting a first port of an impedance matching member to said signal contact tip; (c) conduct
We claim: 1. A method of testing a device-under-test, said method comprising the steps of: (a) engaging a contact pad of said device-under-test with a signal contact tip of a probe testing apparatus; (b) connecting a first port of an impedance matching member to said signal contact tip; (c) conducting a first signal to said signal contact tip; (d) conducting a second signal to a second port of said impedance matching member; (e) wherein said second signal has a higher frequency than said first signal. 2. The method of claim 1 wherein said first signal is a direct current. 3. The method of claim 2 wherein said second signal is an alternating signal. 4. The method of claim 3 further comprising the steps of: (a) blocking a flow of said direct current from said signal contact tip to a source of said alternating signal; (b) conducting said direct current from a source to said signal contact tip over a signal path including an inductor, said inductor having a minimal impedance to said direct current and an impedance substantially greater than said device-under-test at a modulation frequency of said alternating signal. 5. The method of claim 1 further comprising the steps of: (a) blocking a flow of said direct current from said signal contact tip to a source of said alternating signal; (b) separating a combined signal on said signal contact tip into a direct current component and a alternating signal component; (c) terminating a signal path of said alternating signal component. 6. The method of claim 1 further comprising the steps of: (a) generating a combined signal comprising a direct current component and an alternating signal component; (b) separating said direct current component of said combined signal from said alternating signal component; (c) terminating a signal path of said alternating signal component.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.