Sub-micron Resolution 3D Structure Writing Using TPA Process

Name: Sub-micron Resolution 3D Structure Writing Using TPA Process
Brand: VDM Verlag Dr. Mueller E.K.
SKU: 9783836483711
Price: 328.35 RON
Availability: InStock

Autor: Zahidur R. Chowdhury

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Editura: VDM Verlag Dr. Mueller E.K.

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328.35 lei

The two photon absorption (TPA) process is currently used to write high resolution microstructures t...

Informații despre carte

Autor

Zahidur R. Chowdhury

Limbă

engleză

Legare

Carte - Carte broșată

Publicat

2008

Pagini

140

EAN

9783836483711

ISBN

3836483718

Enbook ID

06848135

Editura

VDM Verlag Dr. Mueller E.K.

Greutate

195

Dimensiuni

152 x 229 x 8

Descriere completă

The two photon absorption (TPA) process is currently used to write high resolution microstructures that can be used in micro-electro-mechanical system (MEMS) and photonic crystal application. Key parameters required to predict the final structure formation for this process are experimentally determined and reported in this thesis for two commercially available resists, Ormocore and SU-8. Moreover, writing capability of 3D structures with simple features is demonstrated in this work.The TPA coefficients of resists were measured for 800 nm (wavelength) light. Light source with such wavelength, Ti:Sapphire femto-second laser, is mostly used for such application. The etch rate, another important parameter of a resist, is determined by varying the exposure dose and measuring the final thickness of the resist layer after different developing time.§Mechanical stages with relatively high precision were used to scan the focused laser beam inside the resist in order to produce 3D structures. Rows and dots with different heights, square spirals and hanging beams were fabricated with different thickness by controlling the beam power and the scanning speed.

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Sub-micron Resolution 3D Structure Writing Using TPA Process

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