Patent US6137819A successfully refreshed from Google Patents.
US6137819A
Expired / Lapsed
US
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Optoelectronic semiconductor device
Assignee: Sharp Corp
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Filing: 1997-03-11
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Granted: 2000-10-24
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Expires: 2017-03-11
Abstract
Abstract A laser or light emitting diode device has a p-i-n structure and a distributed Bragg reflector having layers alternating with other layers of different refractive indices. These layers are formed of p-type conducting polymer materials which are electrically conducting polymer materials which are electrically conducting and transparent at the emission wavelength of the device.
Inventors
- 👤 Stephen Peter Najda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:15
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/862; H01; H01S; H01S5/00; H01S5/10; H01S5/18; H01S5/183; H01S5/18361; H10H20/81; H10H20/814; H10H20/8142; G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B2006/12083; G02B2006/12104; G02B2006/12121; H01S5/18355
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
65 words
An optoelectronic semiconductor device, comprising: an optical active region a first electrically conductive Bragg reflector; and a second electrically conductive Bragg reflector, wherein the first Bragg reflector is a polymer Bragg reflector which includes layers of different polymer materials and at least one of the polymer layers is formed from an electrically conductive polymer material and the second Bragg reflector is a semiconductor Bragg reflector.
Claim 2
Dependent Claim
65 words
An optoelectronic semiconductor device, comprising: an optical active region a first electrically conductive Bragg reflector; and a second electrically conductive Bragg reflector, wherein the first Bragg reflector is a polymer Bragg reflector which includes layers of different polymer materials and at least one of the polymer layers is formed from an electrically conductive polymer material and the second Bragg reflector is a semiconductor Bragg reflector.
Claim 3
Dependent Claim
56 words
A device according to claim 1, wherein the first Bragg reflector comprises: a first electrically conductive layer; and a second electrically conductive layer having a refractive index which is different from that of the first electrically conductive layer, wherein at least the first electrically conductive layer is formed from the polymer material which is electrically conductive.
Claim 4
Dependent Claim
48 words
A device according to claim 2, wherein the first Bragg reflector comprises a multiplicity of the first electrically conductive layers alternating with a multiplicity of the second electrically conductive layers, and all of the first and second electrically conductive layers are formed of different electrically conductive polymer materials.
Claim 5
Dependent Claim
20 words
A device according to claim 1, wherein the electrically conductive polymer material comprises a non-conducting matrix doped with a carrier.
Claim 6
Dependent Claim
31 words
A device according to claim 1, wherein the electrically conductive polymer material comprises a blend of a non-conducting polymer and an additional polymer, the non-conducting polymer being doped with a carrier.
Claim 7
Dependent Claim
34 words
A device according to claim 5, wherein the additional polymer is selected from the group consisting of vinyl resins, acrylic resins, polycarbonate resins, polyamide resins, polyethyleneterephthalate resins, epoxy resins, polyurethane resins, and polyester resins.
Claim 8
Dependent Claim
13 words
A device according to claim 6, wherein the acrylic resins include methacrylic resins.
Claim 9
Dependent Claim
22 words
A device according to claim 1, wherein a bulk resistivity of the electrically conductive polymer material is about 1 Ωcm or lower.
Claim 10
Dependent Claim
24 words
A device according to claim 1, wherein the electrically conductive polymer material includes oriented polymer molecules such that the polymer material is a polarizer.
Claim 11
Dependent Claim
12 words
A device according to claim 1, which is a light emitting device.
Claim 12
Dependent Claim
14 words
A device according to claim 10, wherein the light emitting device is a laser.
Claim 13
Dependent Claim
12 words
A device according to claim 11, wherein the laser is a VCSEL.
Claim 14
Dependent Claim
58 words
A device according to claim 1, wherein the first electrically conductive Bragg reflector is an electrically conductive n-type Bragg reflector and the second electrically conductive Bragg reflector is an electrically conductive p-type Bragg reflector, and wherein an optical active region is positioned between the first electrically conductive n-type Bragg reflector and the second electrically conductive p-type Bragg reflector.
Claim 15
Dependent Claim
115 words
An optoelectronic semiconductor device, comprising: an optical active region; a first electrically conductive Bragg reflector, comprising a multiplicity of first electrically conductive layers, and a multiplicity of second electrically conductive layers alternating with the multiplicity of first electrically conductive layers, the second electrically conductive layers having a refractive index which is different from that of the first electrically conductive layers; and a second electrically conductive Bragg reflector, wherein the first electrically conductive Bragg reflector is a polymer Bragg reflector and the second Bragg reflector is a semiconductor Bragg reflector, and wherein the first electrically conductive layers and the second electrically conductive layers of the first Bragg reflector are formed of different electrically conductive polymer materials.
Claim 16
Dependent Claim
115 words
An optoelectronic semiconductor device, comprising: an optical active region; a first electrically conductive Bragg reflector, comprising a multiplicity of first electrically conductive layers, and a multiplicity of second electrically conductive layers alternating with the multiplicity of first electrically conductive layers, the second electrically conductive layers having a refractive index which is different from that of the first electrically conductive layers; and a second electrically conductive Bragg reflector, wherein the first electrically conductive Bragg reflector is a polymer Bragg reflector and the second Bragg reflector is a semiconductor Bragg reflector, and wherein the first electrically conductive layers and the second electrically conductive layers of the first Bragg reflector are formed of different electrically conductive polymer materials.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-10-24 | 2004-04-24 | 2004-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-10-24 | 2008-04-24 | 2008-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-10-24 | 2012-04-24 | 2012-10-24 | $7700.00 | Window Closed / Lapsed |