US6127989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monolithic integrated circuit and antenna coil structure comprising a peripheral protective ring
Assignee: EM Microelectronic Marin SA
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Filing: 1998-03-10
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Granted: 2000-10-03
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Expires: 2018-03-10
Abstract
Abstract The present invention concerns an integrated circuit structure (1) formed in a substrate (2) and including at least one integrated circuit element (3, 4), an antenna coil (5) capable of transmitting and/or receiving data, and associated with said integrated circuit element(s) (3, 4); and a metal protective ring (20) situated at the periphery of the integrated circuit structure (1). The present invention is characterised in that said protective ring (20) comprises at least one ohmic interruption, so that it does not form a closed circuit on itself. The integrated circuit structure (1) according to the invention is improved in that the operation of the antenna coil (5) is made insensitive to the presence of the protective ring (20).
Inventors
- 👤 Pascal Kunz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:50
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/2208; H01Q1/2225; G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/07749; H01Q1/36; H01Q1/38; H01Q1/48; H01Q7/00; H01Q7/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
110 words
An integrated circuit structure formed in a semiconductor substrate and including: at least one electronic integrated circuit element; an antenna coil arranged to receive data and energy to supply said electronic integrated circuit element; and a metal protective ring situated at the periphery of said electronic integrated circuit structure to protect elements of said electronic integrated circuit structure from mechanical stress or corrosion; wherein said protective ring is arranged with at least one ohmic interruption, so that it does not form a closed circuit on itself, in order that the antenna coil is insensitive to the presence of the protective ring, thereby enabling operation of said electronic integrated circuit element.
Claim 2
Dependent Claim
110 words
An integrated circuit structure formed in a semiconductor substrate and including: at least one electronic integrated circuit element; an antenna coil arranged to receive data and energy to supply said electronic integrated circuit element; and a metal protective ring situated at the periphery of said electronic integrated circuit structure to protect elements of said electronic integrated circuit structure from mechanical stress or corrosion; wherein said protective ring is arranged with at least one ohmic interruption, so that it does not form a closed circuit on itself, in order that the antenna coil is insensitive to the presence of the protective ring, thereby enabling operation of said electronic integrated circuit element.
Claim 3
Dependent Claim
21 words
The integrated circuit structure of claim 1, wherein said antenna coil and said electronic integrated circuit element together define a transponder.
Claim 4
Dependent Claim
17 words
The integrated circuit structure of claim 1, wherein said protective ring is arranged with four ohmic interruptions.
Claim 5
Independent Claim
107 words
A method for manufacturing an integrated circuit structure formed in a semiconductor substrate, said method comprising the steps: manufacturing at least one electronic integrated circuit element in a semiconductor substrate; manufacturing an antenna coil arranged to receive data and energy to supply said electronic integrated circuit element; and manufacturing a metal protective ring situated at the periphery of said integrated circuit structure, said protective ring being arranged with at least one ohmic interruption, so that it does not form a closed circuit on itself, in order that the antenna coil is insensitive to the presence of the protective ring, thereby enabling operation of said integrated circuit structure.
Claim 6
Independent Claim
107 words
A method for manufacturing an integrated circuit structure formed in a semiconductor substrate, said method comprising the steps: manufacturing at least one electronic integrated circuit element in a semiconductor substrate; manufacturing an antenna coil arranged to receive data and energy to supply said electronic integrated circuit element; and manufacturing a metal protective ring situated at the periphery of said integrated circuit structure, said protective ring being arranged with at least one ohmic interruption, so that it does not form a closed circuit on itself, in order that the antenna coil is insensitive to the presence of the protective ring, thereby enabling operation of said integrated circuit structure.
Claim 7
Dependent Claim
15 words
The method of claim 4, wherein said protective ring is arranged with four ohmic interruptions.
Claim 8
Independent Claim
120 words
A method for manufacturing an integrated circuit structure formed in a semiconductor substrate, said method comprising the steps: manufacturing at least one electronic integrated circuit element in a semiconductor substrate; manufacturing an antenna coil arranged to receive data and energy to supply said electronic integrated circuit element; and manufacturing a metal protective ring situated at the periphery of said integrated circuit structure to protect elements of said integrated circuit structure against mechanical stress or corrosion, said protective ring being arranged with at least one ohmic interruption, so that it does not form a closed circuit on itself, in order that the antenna coil is insensitive to the presence of the protective ring, thereby enabling operation of said integrated circuit structure.
Claim 9
Independent Claim
120 words
A method for manufacturing an integrated circuit structure formed in a semiconductor substrate, said method comprising the steps: manufacturing at least one electronic integrated circuit element in a semiconductor substrate; manufacturing an antenna coil arranged to receive data and energy to supply said electronic integrated circuit element; and manufacturing a metal protective ring situated at the periphery of said integrated circuit structure to protect elements of said integrated circuit structure against mechanical stress or corrosion, said protective ring being arranged with at least one ohmic interruption, so that it does not form a closed circuit on itself, in order that the antenna coil is insensitive to the presence of the protective ring, thereby enabling operation of said integrated circuit structure.
Claim 10
Dependent Claim
15 words
The method of claim 6, wherein said protective ring is arranged with four ohmic interruptions.
References Cited (Backward Citations)
US4237438A
Cited
GB2101412A
Cited
WO1988000785A1
Cited
US4724427A
Cited
US4999742A
Cited
US5198647A
Cited
US5565876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-10-03 | 2004-04-03 | 2004-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-10-03 | 2008-04-03 | 2008-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-10-03 | 2012-04-03 | 2012-10-03 | $7700.00 | Window Closed / Lapsed |