发明申请
- 专利标题: Microelectronic contact structure, and method of making same
- 专利标题(中): 微电子接触结构及其制造方法
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申请号: US09753310申请日: 2000-12-29
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公开(公告)号: US20010002341A1公开(公告)日: 2001-05-31
- 发明人: Benjamin N. Eldridge , Gary W. Grube , Igor Y. Khandros , Gaetan L. Mathieu
- 申请人: FormFactor, Inc., a Delaware corporation
- 申请人地址: null
- 专利权人: FormFactor, Inc., a Delaware corporation
- 当前专利权人: FormFactor, Inc., a Delaware corporation
- 当前专利权人地址: null
- 主分类号: H01R012/00
- IPC分类号: H01R012/00
摘要:
Spring contact elements are fabricated by depositing at least one layer of metallic material into openings defined on a sacrificial substrate. The openings may be within the surface of the substrate, or in one or more layers deposited on the surface of the sacrificial substrate. Each spring contact element has a base end portion, a contact end portion, and a central body portion. The contact end portion is offset in the z-axis (at a different height) than the central body portion. The base end portion is preferably offset in an opposite direction along the z-axis from the central body portion. In this manner, a plurality of spring contact elements are fabricated in a prescribed spatial relationship with one another on the sacrificial substrate. The spring contact elements are suitably mounted by their base end portions to corresponding terminals on an electronic component, such as a space transformer or a semiconductor device, whereupon the sacrificial substrate is removed so that the contact ends of the spring contact elements extend above the surface of the electronic component. In an exemplary use, the spring contact elements are thereby disposed on a space transformer component of a probe card assembly so that their contact ends effect pressure connections to corresponding terminals on another electronic component, for the purpose of probing the electronic component.
公开/授权文献
- US07073254B2 Method for mounting a plurality of spring contact elements 公开/授权日:2006-07-11
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