Abstract
This paper reports a simple and novel procedure for mass production of microlens arrays. In this paper, a microlens array master is formed by room temperature imprint lithography and thermal reflow process. Next, electroforming is carried out to fabricate the metal mold insert from the microlens array master. Finally, micro-hot embossing is used to replicate microlens arrays. In this paper, a L9 experimental matrix design based on the Taguchi method is constructed to optimize the replication quality of molded microlens arrays. The results of the statistical analysis indicated that the processing temperature is the principal parameter affecting the sag height of the molded microlens array. The optimal processing parameters are processing temperature of 150°C, embossing pressure of 5.21MPa, processing time of 90s and de-molding temperature of 70°C. The 200×200 arrays of molded microlens, with a diameter of 150μm, a pitch of 200μm and a sag height of 31.51μm have been successfully fabricated. The average surface roughness of the molded microlens array is 4.31nm.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of 1st IEEE International Conference on Nano Micro Engineered and Molecular Systems, 1st IEEE-NEMS |
| Pages | 187-191 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | 1st IEEE International Conference on Nano Micro Engineered and Molecular Systems, 1st IEEE-NEMS - Zhuhai, China Duration: Jan 18 2006 → Jan 21 2006 |
Other
| Other | 1st IEEE International Conference on Nano Micro Engineered and Molecular Systems, 1st IEEE-NEMS |
|---|---|
| Country/Territory | China |
| City | Zhuhai |
| Period | 1/18/06 → 1/21/06 |
Keywords
- Micrlens array
- Micro hot embossing molding
ASJC Scopus subject areas
- Biotechnology
- Materials Science (miscellaneous)