Invention Grant
US06937037B2 Probe card assembly for contacting a device with raised contact elements
失效
用于使设备与凸起的接触元件接触的探针卡组件
- Patent Title: Probe card assembly for contacting a device with raised contact elements
- Patent Title (中): 用于使设备与凸起的接触元件接触的探针卡组件
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Application No.: US10198198Application Date: 2002-07-16
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Publication No.: US06937037B2Publication Date: 2005-08-30
- Inventor: Benjamin N. Eldridge , Gary W. Grube , Gaetan L. Mathieu
- Applicant: Benjamin N. Eldridge , Gary W. Grube , Gaetan L. Mathieu
- Applicant Address: US CA Livermore
- Assignee: Formfactor, et al.
- Current Assignee: Formfactor, et al.
- Current Assignee Address: US CA Livermore
- Agent N. Kenneth Burraston
- Main IPC: G01R31/26
- IPC: G01R31/26 ; B23K20/00 ; G01R1/067 ; G01R1/073 ; G01R31/28 ; H01L21/00 ; H01L21/48 ; H01L21/56 ; H01L21/60 ; H01L21/603 ; H01L21/66 ; H01L23/48 ; H01L23/485 ; H01L23/49 ; H01L23/498 ; H01L25/065 ; H01L25/16 ; H01R33/76 ; H05K1/14 ; H05K3/20 ; H05K3/32 ; H05K3/34 ; H05K3/36 ; H05K3/40

Abstract:
A probe card is provided for probing a semiconductor wafer with raised contact elements. In particular, the present invention is useful with resilient contact elements, such as springs. A probe card is designed to have terminals to mate with the contact elements on the wafer. In a preferred embodiment, the terminals are posts. In a preferred embodiment the terminals include a contact material suitable for repeated contacts. In one particularly preferred embodiment, a space transformer is prepared with contact posts on one side and terminals on the opposing side. An interposer with spring contacts connects a contact on the opposing side of the space transformer to a corresponding terminal on a probe card, which terminal is in turn connected to a terminal which is connectable to a test device such as a conventional tester.
Public/Granted literature
- US20030038647A1 Probe card for probing wafers with raised contact elements Public/Granted day:2003-02-27
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