Invention Grant
- Patent Title: Method of dicing a wafer and semiconductor chip
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Application No.: US15390767Application Date: 2016-12-27
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Publication No.: US09911655B2Publication Date: 2018-03-06
- Inventor: Markus Brunnbauer , Bernhard Drummer , Korbinian Kaspar , Gunther Mackh
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: INFINEON TECHNOLOGIES AG
- Current Assignee: INFINEON TECHNOLOGIES AG
- Current Assignee Address: DE Neubiberg
- Agency: Viering, Jentschura & Partner mbB
- Priority: DE102015100783 20150120
- Main IPC: H01L29/06
- IPC: H01L29/06 ; H01L21/78 ; H01L21/683 ; H01L21/268 ; H01L21/304 ; H01L21/3065

Abstract:
A method of dicing a wafer may include forming a plurality of active regions in a wafer, each active region including at least one electronic component, the active regions extending from a first surface of the wafer into the wafer by a height and being separated by separation regions, forming at least one trench in the wafer by plasma etching in at least one separation region from the first surface of the wafer. The at least one trench is extending into the wafer farther than the plurality of active regions. The method may further include processing a remaining portion of the wafer in the separation region to separate the wafer into individual chips.
Public/Granted literature
- US20170110371A1 METHOD OF DICING A WAFER AND SEMICONDUCTOR CHIP Public/Granted day:2017-04-20
Information query
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