Invention Grant
- Patent Title: Forming array contacts in semiconductor memories
- Patent Title (中): 在半导体存储器中形成阵列触点
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Application No.: US14066340Application Date: 2013-10-29
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Publication No.: US08759980B2Publication Date: 2014-06-24
- Inventor: Roberto Somaschini , Alessandro Vaccaro , Paolo Tessariol , Giulio Albini
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Dorsey & Whitney LLP
- Main IPC: G11C11/24
- IPC: G11C11/24

Abstract:
Array contacts for semiconductor memories may be formed using a first set of parallel stripe masks and subsequently a second set of parallel stripe masks transverse to the first set. For example, one set of masks may be utilized to etch a dielectric layer, to form parallel spaced trenches. Then the trenches may be filled with a sacrificial material. That sacrificial material may then be masked transversely to its length and etched, for example. The resulting openings may be filled with a metal to form array contacts.
Public/Granted literature
- US20140048956A1 FORMING ARRAY CONTACTS IN SEMICONDUCTOR MEMORIES Public/Granted day:2014-02-20
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