R. Witte

Details der Publikationsliste

Zeitraum

1986 - 2009

Anzahl

21

Co-Autoren

Postimplantation pressure testing and characterization of laser bonded glass/polyimide microjoints (2009)

Mian, A., Sultana, T., Georgiev, D., Witte, R., Herfurth, H., Auner, G., ...

The stability of the laser bonded titanium coated glass/polyimide microjoints were studied in vivo by implanting on a rat brain surface for 10 days. In the current state, the strength of the joints...

Finite element modeling of transmission laser microjoining process (2007)

Mahmood, T., Mian, A., Amin, M.R., Auner, G., Witte, R., Herfurth, H., ...

Use of laser beam in high precision joining of two dissimilar materials has become a very useful technique. It has potential application in biomedical implants and their encapsulation process. In...

Performance of laser bonded glass/polyimide microjoints in cerebrospinal fluid (2007)

Mian, A., Newaz, G., Georgiev, D.G., Rahman, N., Vendra, L., Auner, G., ...

In this paper, laser bonded microjoints between glass and polyimide is considered to examine their potential applicability in encapsulating neural implants. To facilitate bonding between polyimide...

A comparison between glass/polyimide and titanium/polyimide microjoint performances in cerebrospinal fluid (2006)

Newaz, G., Mian, A., Sultana, T., Mahmood, T., Georgiev, D.G., Auner, G., ...

Assessment of neural biocompatibility requires that materials be tested with exposure in neural fluids. Laser bonded microjoint samples made from Ti coated glass substrate and polyimide film (GPI)...

An Ontological Software Comprehension Process Model (2006)

W. Meng, J. Rilling, Y. Zhang, R. Witte, P. Charl

Comprehension is an essential part of software maintenance. Only software that is well understood can evolve in a controlled manner. In this paper, we present a formal process model to support the...

Laser Fabrication and Characterization of Adhesive-Free Joints for Encapsulation of Biomedical Implant Devices (2005)

Newaz, G., Georgiev, D. G., Mian, A., Auner, G., Herfurth, H., Witte, R.

Laser-fabricated joints of sub-millimeter widths between biocompatible, dissimilar materials have the potential for applications as encapsulation of miniature implant biomedical devices. In this...

Laser fabrication and characterization of sub-millimeter joints between polyimide and Ti-coated borosilicate glass (2005)

Georgiev, D.G., Sultana, T., Mian, A., Auner, G., Herfurth, H., Witte, R., ...

Laser-fabricated joints of sub-millimeter widths between biocompatible, dissimilar materials have the potential for application as encapsulation of miniature implantable biomedical devices. In this...

Laser bonded microjoints between titanium and polyimide for applications in medical implants (2005)

Mian, A., Newaz, G., Vendra, L., Rahman, N., Georgiev, D.G., Auner, G., ...

Bioencapsulation of medical implant devices, and neural implant devices in particular, requires development of reliable hermetic joints between packaging materials that are often dissimilar....

Laser microjoining of dissimilar and biocompatible materials (2004)

Bauer, I., Russek, U.A., Witte, R., Heinemann, S., Newaz, G., ...

Micro-joining and hermetic sealing of dissimilar and biocompatible materials is a critical issue for a broad spectrum of products such as micro-electronics, micro-optical and biomedical products and...

Verfahren und Vorrichtung zum Bestimmen der Intensitaetsverteilung beim Auftreffen eines Laserstrahls auf eine Objektoberflaeche (2003)

Olowinsky, A., Witte, R., Gillner, A., Schildecker, A.

DE 10208781 A UPAB: 20031027 NOVELTY - Method has the following steps: measurement of laser beam intensity distributions in a number of planes perpendicular to the beam and at knows separations to...

Laser joining of glass with silicon (2002)

Witte, R., Herfurth, H., Heinemann, S.

New joining techniques are required for the variety of materials used in the manufacture of microsystems. Lasers are emerging as a useful tool for joining miniaturized devices. The beam can be...

Polarization dependence of Na* + Na* associative ionization revisited (1986)

Meyer, E., Hertel, I.V., Morgenstern, R., Meijer, H.A.J., Schmidt, H., ...

The dependence of the associative ionization process Na 3 2P3/2 + Na 3 2P3/2 → Na2+ + e- on the polarization of the laser light used for Na excitation was independently investigated in Utrecht and...