Apparatus and methods for micro-transfer printing | |
BOWER, CHRISTOPHER; MEITL, MATTHEW; KNEEBURG, DAVID; GOMEZ, DAVID; BONAFEDE, SALVATORE | |
2016-03-24 | |
著作权人 | X-CELEPRINT LIMITED |
专利号 | WO2016012409A3 |
国家 | 世界知识产权组织 |
文献子类 | 发明申请 |
其他题名 | Apparatus and methods for micro-transfer printing |
英文摘要 | An appartus and method for assembling a semiconductor device on a destination substrate using micro-transfer-printing is described. A conformable transfer device (102) such as an elastomer or visco-elastomer stamp includes an array of posts (114) for picking up printable semiconductor elements (104) from a native substrate (108) which is used for fabricating the printable semiconductor elements (104) and transferring the printable semiconductor elements (104) to a destination substrate (110). In certain embodiments, the printable semiconductor elements (104) are encapsulated in a polymer layer (106) before they are picked up. In certain embodiments a plasma treatment (e.g. atmospheric plasma) can be performed during micro transfer printing. The plasma can be applied to bottom surfaces of devices that are attached to an elastomer transfer-element. This treatment of bottom surfaces can be used to provide improved bonding between the devices and destination substrate, to clean the bottom surface of devices that have been fabricated using epitaxial lift-off methods, and to remove thin layers of oxides. In certain embodiments, if the devices have a backside metal, the semiconductor elements are printed to a destination substrate with mating metal pads that have been coated with a flux. After transferring the devices, the flux can be reflowed thereby leaving a good metal connection between the pads and the backside metal on the devices. In certain embodiments, the disclosed technology includes transfer devices designed to eliminate or reduce issues related to crowning. In certain embodiments, the crown is cut with a razor so that printable semiconductor elements are not picked up by the crown during a print operation. |
公开日期 | 2016-03-24 |
申请日期 | 2015-07-20 |
状态 | 未确认 |
内容类型 | 专利 |
源URL | [http://ir.opt.ac.cn/handle/181661/54608] |
专题 | 半导体激光器专利数据库 |
作者单位 | X-CELEPRINT LIMITED |
推荐引用方式 GB/T 7714 | BOWER, CHRISTOPHER,MEITL, MATTHEW,KNEEBURG, DAVID,et al. Apparatus and methods for micro-transfer printing. WO2016012409A3. 2016-03-24. |
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