EP0803916A3
Light emitting device and manufacturing method thereof
Abstract
A light emitting device includes a cladding layer composed of a III-V group nitride system semiconductor of a first conductivity type, an active layer formed on the cladding layer of the first conductivity type and composed of a III-V group nitride system semiconductor containing In, an undoped cap layer formed on the active layer and composed of a III-V group nitride system semiconductor, and a cladding layer formed on the cap layer and composed of a III-V group nitride system semiconductor of a second conductivity type.

Term
Term ended
Projected expiry passed 7 April 2017, 9.5 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both waysCites: the store holds 6 of 7
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| EP0497350A1 | Cites | European Patent Office (EPO) | Y | Search report | 13-15 |
| US5345463A | Cites | United States of America | XAY | Search report | 1,8,10,11,17,25,27,28 |
| US5393993A | Cites | United States of America | Y | Search report | 16 |
| US5495115A | Cites | United States of America | X | Search report | 1,8,10-12 |
| JPH07249795A | Cites | Japan | Y | Search report | 7,18,19,25-29 |
| JPH0774431A | Cites | Japan | X | Search report | 1,8-11 |
| NAKAMURA S ET AL: "Superbright green InGaN single-quantum-well-structure LEDs", JAPANESE JOURNAL OF APPLIED PHYSICS, PART 2 (LETTERS), 15 OCT. 1995, JAPAN, vol. 34, no. 10B, pages L1332 - L1335, XP000702227, ISSN: 0021-4922 | Non-patent | – | – | Search report | – |
| NAKAMURA S: "III-V nitride-based LEDs", CONF. ON DIAMOND, DIAMOND-LIKE AND RELATED MATERIALS, BARCELONA, 10-15 SEPT. 1995, vol. 5, no. 3-5, Diamond and Related Materials, April 1996, Elsevier, Switzerland, pages 496 - 500, XP000627554, ISSN: 0925-9635 | Non-patent | – | – | Search report | – |
| PATENT ABSTRACTS OF JAPAN vol. 1995, no. 01 28 February 1995 (1995-02-28) | Non-patent | – | – | Search report | – |
27 members in 6 offices
Priority claims10
| Document | Office | Kind | Date |
|---|---|---|---|
| 10783396 | Japan | A | |
| 10783396 | Japan | A | |
| 10783396 | Japan | – | |
| 5522197 | Japan | A | |
| 5522197 | Japan | A | |
| 5522197 | Japan | – | |
| 10783396 | – | – | – |
| 5522197 | – | – | – |
| JP19960107833 | – | – | – |
| JP19970055221 | – | – | – |
Members27
| Document | Office | Kind | |
|---|---|---|---|
| EP0803916A2 | European Patent Office (EPO) | A2 | |
| KR970072575A | Republic of Korea | A | |
| CN1169036A | China | A | |
| JPH1012923A | Japan | A | |
| US5990496A | United States of America | A | |
| EP0803916A3This record | European Patent Office (EPO) | A3 | |
| US6162656A | United States of America | A | |
| JP2002134787A | Japan | A | |
| JP3448450B2 | Japan | B2 | |
| JP2003309291A | Japan | A | |
| EP1453112A1 | European Patent Office (EPO) | A1 | |
| CN1540775A | China | A | |
| CN1220278C | China | C | |
| KR100500331B1 | Republic of Korea | B1 | |
| EP0803916B1 | European Patent Office (EPO) | B1 | |
| DE69735078D1 | Germany | D1 | |
| DE69735078T2 | Germany | T2 | |
| CN100353573C | China | C | |
| JP2009010432A | Japan | A | |
| USRE42074E | United States of America | E | |
| EP2383846A2 | European Patent Office (EPO) | A2 | |
| JP2012165011A | Japan | A | |
| JP2013141025A | Japan | A | |
| EP2383846A3 | European Patent Office (EPO) | A3 | |
| JP5647289B2 | Japan | B2 | |
| EP1453112B1 | European Patent Office (EPO) | B1 | |
| EP2383846B1 | European Patent Office (EPO) | B1 |
43 legal events, as 4 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of representativeR082 | R082 | DE | |
| Transmission of propertyTP | TP | FR | |
| Patent expired because of reaching the maximum lifetime of a patentExpiredMK | MK | NL | |
| Change of ownershipPD | PD | NL | |
| Expiry of rightR071 | R071 | DE | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of representativeR082 | R082 | DE | |
| Change of representativeR082 | R082 | DE | |
| Change of ownershipPD | PD | NL | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Fee paymentPLFP | PLFP | FR | |
| Transmission of propertyTP | TP | FR | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of applicant/patenteeR081 | R081 | DE | |
| Change of representativeR082 | R082 | DE | |
| Change of representativeR082 | R082 | DE | |
| Assignments of patentsSD | SD | NL | |
| Change of representativeR082 | R082 | DE | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| Fr: translation filedET | ET | EP | |
| Corresponds to:REF | REF | EP | |
| Designated contracting statesAK | AK | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Title (correction)MANUFACTURING METHOD OF A LIGHT EMITTING DEVICERTI1 | RTI1 | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Request for examination filed17P | 17P | EP | |
| Information provided on ipc code assigned before grant7H 01L 33/00 A, 7H 01S 3/19 BRIC1 | RIC1 | EP | |
| Designated contracting statesAK | AK | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | 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
- 0803916
- Publication, DOCDB
- 0803916
- Publication, EPODOC
- EP0803916
- Application
- 97302374
- Application, DOCDB
- 97302374
- Application, EPODOC
- EP19970302374
Titles3
- German
- Lichtemittierende Vorrichtung und Herstellungsverfahren
- English
- Light emitting device and manufacturing method thereof
- French
- Dispositif émetteur de lumière et méthode de fabrication
Classification
- CPC, 11
- H10H20/825
- H01S5/321
- H01S5/0213
- H01S5/221
- H01S5/2231
- H01S5/32341
- H01S2301/173
- H01S2304/04
- H10H20/01335
- H10H20/81
- H01S5/2202
- IPC, 8
- H01L33 00
- H01L33 06
- H01L33 12
- H01L33 32
- H01L33 34
- H01S5 00
- H01S5 323
- H01S5 343
Designated states1
- Contracting states, 1
- Netherlands (Kingdom of the)