Light-emitting semiconductor diode in a hermetically sealed container
文献类型：专利
| 作者 | DE POORTER, JOHANNES A., C/O INT. OCTROOIBUREAU BV |
| 发表日期 | 1998-02-11 |
| 专利号 | EP0655813B1 |
| 著作权人 | PHILIPS ELECTRONICS N.V. |
| 国家 | 欧洲专利局 |
| 文献子类 | 授权发明 |
| 其他题名 | Light-emitting semiconductor diode in a hermetically sealed container |
| 英文摘要 | An optoelectronic semiconductor device (10) with a radiation-emitting semiconductor diode (3), preferably a diode laser (3), is particularly suitable as a radiation source in optical read and write systems such as bar code readers, laser printers, and optical disc systems. The diode (3) has one or two exit surfaces for radiation (R) which are provided with coatings (4). In such a device (10) it is found that a deposit rich in carbon is formed on the coating (4) of the laser (3), with the result that the output of the diode (3) fluctuates. The deposit may be avoided in that organic impurities are avoided or a selection is carried out in that respect. This is cumbersome and expensive. A device (10) according to the invention is characterized in that the diode (3) is present within an envelope (20) which is hermetically sealed off from the outer world (40), and a gaseous oxidizing compound (30) is present inside the envelope (20). It was surprisingly found that a gaseous oxidizing compound (30), preferably oxygen, counteracts or removes a deposit rich in carbon on the coating (4). Since the device (10) is hermetically sealed off from the outer world (40), degradation owing to water vapour or other aggressive gases is counteracted. The device (10) preferably contains dry and clean nitrogen to which at least approximately 0.2 vol.% oxygen (30) has been added. Particularly good results were obtained with a high-power laser (3) and a laser (3) which emits between approximately 0.6 and 0.9 µm. |
| 公开日期 | 1998-02-11 |
| 申请日期 | 1994-11-24 |
| 状态 | 失效 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/44709]  |
| 专题 | 半导体激光器专利数据库 |
| 作者单位 | PHILIPS ELECTRONICS N.V. |
| 推荐引用方式 GB/T 7714 | DE POORTER, JOHANNES A., C/O INT. OCTROOIBUREAU BV. Light-emitting semiconductor diode in a hermetically sealed container. EP0655813B1. 1998-02-11. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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