Invention Grant
- Patent Title: Optimized contact design for thermosonic bonding of flip-chip devices
- Patent Title (中): 优化的倒装芯片器件热键合接触设计
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Application No.: US10588473Application Date: 2004-12-22
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Publication No.: US07667236B2Publication Date: 2010-02-23
- Inventor: Ivan Eliashevich , Hari Venugopalan , Xiang Gao , Michael J. Sackrison
- Applicant: Ivan Eliashevich , Hari Venugopalan , Xiang Gao , Michael J. Sackrison
- Applicant Address: US OH Cleveland
- Assignee: Lumination LLC
- Current Assignee: Lumination LLC
- Current Assignee Address: US OH Cleveland
- Agency: Fay Sharpe LLP
- International Application: PCT/US2004/043751 WO 20041222
- International Announcement: WO2005/065325 WO 20050721
- Main IPC: H01L27/15
- IPC: H01L27/15

Abstract:
A light emitting device (A) includes a semiconductor die (100). The semiconductor die includes: an epitaxial structure (120) arranged on a substrate (160), the epitaxial structure forming an active light generating region (140) between a first layer (120n) on a first side of the active region and having a first conductivity type, and a second layer (120p) on a second side of the active region and having a second conductivity type, the second side of the active region being opposite the first side of the active region and the second conductivity type being different that the first conductivity type; a first contact (180n) in operative electrical communication with the active region via the first layer in the epitaxial structure, the first contact being arranged on a side of the epitaxial structure opposite the substrate; a second contact (180p) in operative electrical communication with the active region via the second layer in the epitaxial structure, the second contact being arranged on a side of the epitaxial structure opposite the substrate; a first contact trace corresponding to the first contact and defined at a surface thereof distal from the substrate, the first trace including at least one area designated for bonding (320n); and, a second contact trace corresponding the second contact and defined at a surface thereof distal from the substrate, the second trace including at least one area (320p) designated for bonding. Suitably, the first contact trace is substantially enclosed within the second contact trace.
Public/Granted literature
- US20070145379A1 Optimized contact design for thermosonic bonding of flip-chip devices Public/Granted day:2007-06-28
Information query
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