Invention Grant
- Patent Title: Microelectronic spring contact elements
- Patent Title (中): 微电子弹簧接触元件
-
Application No.: US10821715Application Date: 2004-04-08
-
Publication No.: US07579269B2Publication Date: 2009-08-25
- Inventor: Benjamin N. Eldridge , Igor Y. Khandros , Gaetan L. Mathieu , David V. Pedersen
- Applicant: Benjamin N. Eldridge , Igor Y. Khandros , Gaetan L. Mathieu , David V. Pedersen
- Applicant Address: US CA Livermore
- Assignee: FormFactor, Inc.
- Current Assignee: FormFactor, Inc.
- Current Assignee Address: US CA Livermore
- Agent N. Kenneth Burraston
- Main IPC: H01L21/00
- IPC: H01L21/00

Abstract:
Spring contact elements are fabricated by depositing at least one layer of metallic material into openings defined in masking layers deposited on a surface of a substrate which may be an electronic component such as an active semiconductor device. Each spring contact element has a base end, a contact end, and a central body portion. The contact end is offset in the z-axis (at a different height) and in at least one of the x and y directions from the base end. In this manner, a plurality of spring contact elements are fabricated in a prescribed spatial relationship with one another on the substrate. The spring contact elements make temporary (i.e., pressure) or permanent (e.g., joined by soldering or brazing or with a conductive adhesive) connections with terminals of another electronic component to effect electrical connections therebetween. In an exemplary application, the spring contact elements are disposed on a semiconductor devices resident on a semiconductor wafer so that temporary connections can be made with the semiconductor devices to burn-in and/or test the semiconductor devices.
Public/Granted literature
- US20040198081A1 Microelectronic spring contact elements Public/Granted day:2004-10-07
Information query
IPC分类: