An interconnect for dissipating electrostatic charges on a head slider
Abstract
An interconnect that may reduce a head slider's exposure to electrostatic discharge events and may dissipate charging of the head is provided. Conductive (56) and nonconductive adhesives are used to adhere a head slider to the interconnect. An electromagnetic interference generating circuit (60) generates current that flows through the conductive adhesive bonding (56) the head slider to the flexure arm (22). The electromagnetic interference current breaks down the resistance of the conductive adhesive (56) to dissipate an electrostatic voltage charge on the head slider. This may prolong the life of the head slider and a read/write head coupled to the head slider.

Term
Term ended
Projected expiry passed 16 December 2024, 1.8 years ago.
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- Filed
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- Projected expiry
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1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| US2002126424A1 | Cites | United States of America | A | Search report | 1,10 |
| US2003102218A1 | Cites | United States of America | A | Search report | 1,10 |
| JPS61113117A | Cites | Japan | A | Search report | 1,10 |
5 priority claims, no other members on record
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 750638 | United States of America | – | |
| 75063803 | United States of America | A | |
| 75063803 | United States of America | A | |
| 750638 | – | – | – |
| US20030750638 | – | – | – |
25 legal events, as 2 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119 | R119 | DE | |
| Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119 | R119 | DE | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| No opposition filedOpposition26N | 26N | EP | |
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| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Corresponds to:REF | REF | EP | |
| Designated contracting statesAK | AK | EP | |
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| First examination report despatched17Q | 17Q | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 1544849
- Publication, DOCDB
- 1544849
- Publication, EPODOC
- EP1544849
- Application
- 4029908
- Application, DOCDB
- 04029908
- Application, EPODOC
- EP20040029908
Titles3
- German
- Verbindung zum Entladen elektrostatischer Ladungen auf einem Kopfgleiter
- English
- An interconnect for dissipating electrostatic charges on a head slider
- French
- Interconnexion pour dissipation des charges électrostatiques sur un patin de tête
Classification
- CPC, 2
- G11B5/4853
- G11B21/21
- IPC, 4
- G11B5 48
- G11B5 60
- G11B21 21
- G11B5 58
Designated states36
- Contracting states, 30
- Austria
- Belgium
- Bulgaria
- Switzerland
- Cyprus
- Czechia
- Germany
- Denmark
- Estonia
- Spain
- Finland
- France
- United Kingdom
- Greece
- Hungary
- Ireland
- Iceland
- Italy
- Liechtenstein
- Lithuania
- Luxembourg
- Monaco
- Netherlands (Kingdom of the)
- Poland
and 6 moreShow fewer
- Portugal
- Romania
- Sweden
- Slovenia
- Slovakia
- Türkiye
- Extension states, 6
- Albania
- Bosnia and Herzegovina
- Croatia
- Latvia
- North Macedonia
- Yugoslavia, later Serbia and Montenegro (until 2006)