Thick-Film Laser Trimming Principles, Techniques and Recommendations

Thick-film Lithography Using Laser Write

Major part of this work was carried out in Hsinchu. ABSTRACT Mask-making process using laser direct-write has been broadly applied in the microelectronics and the PC board industries. In this paper, we report the thick-film lithography of laser write mainly for the x-ray mask in the LIGA application. Several schemes of multiple writing are successfully demonstrated in terms of the sidewall stra...

Effects of High Voltage Pulse Trimming on Structural Properties of Thick-Film Resistors

Nowadays, compact and reliable electronic devices including up-to-date ceramic micro-electro-mechanical systems require thick-film resistors with significantly reduced dimensions and stable and precise resistance values. For that reason, instead of standard laser trimming method, high voltage pulse trimming of thick-film resistors is being introduced. This method allows controlled and reliable ...

Laser sintering of thick-film conductors for microelectronic applications

This paper investigates fabrication of functional thick metal films using simultaneous laser sintering and patterning along with the fundamental physical phenomena that govern the laser sintering process. The effects of the processing parameters on the quality of the fabricated components are investigated through a heat transfer analysis. We show that our process has potentials for metallizatio...

Thick Film Ni-Ferrite Inductors

Principles and techniques of liver tumor ablation: laser induced thermotherapy

The liver plays a central role in the human metabolism and thus represents one of the organ systems most often affected, especially by tumor diseases. In the following the basics and data will be presented both for treatment aspects of secondary and primary liver tumors: Two thirds of the patients with colorectal carcinoma (CRC) have liver metastases by the time of death [57]. For CRC hepatic m...