Invention Grant
- Patent Title: Inspection of microelectronic devices using near-infrared light
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Application No.: US15245442Application Date: 2016-08-24
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Publication No.: US10066927B2Publication Date: 2018-09-04
- Inventor: Liang W. Zhang , Zhihua Zou , Osborne A. Martin, III , Robert F. Wiedmaier
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Schwabe, Williamson & Wyatt, P.C.
- Main IPC: G01B11/14
- IPC: G01B11/14 ; G03F9/00 ; H05K3/00 ; H05K1/02 ; G03F7/20 ; G01B11/27 ; G01N21/88 ; H01L21/66 ; G01N21/95 ; G01B11/16 ; G01L1/24

Abstract:
Inspection of microelectronic devices is described using near infrared light. In one example, a dielectric material layer on a substrate is illuminated with a near infrared light beam. The substrate has at least one contact land, the dielectric material layer overlies at least a portion of the contact land, and the substrate has at least one via defined in the dielectric material layer, the via exposing at least a portion of the contact land. Reflected near infrared light is reflected from the substrate at a camera. The position of the via is determined relative to the contact land from the reflected light beam using an image processing device.
Public/Granted literature
- US20160363542A1 INSPECTION OF MICROELECTRONIC DEVICES USING NEAR-INFRARED LIGHT Public/Granted day:2016-12-15
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