Peter Pirogovsky

Title: Innovations of Peter Pirogovsky

Introduction

Peter Pirogovsky is a notable inventor based in Portland, OR (US), recognized for his contributions to laser technology. He holds a total of 10 patents, showcasing his expertise and innovative spirit in the field.

Latest Patents

One of his latest patents is focused on ultrashort laser pulse wafer scribing. This invention provides systems and methods for scribing wafers with short laser pulses, effectively reducing the ablation threshold of target materials. In a stack of material layers, a minimum laser ablation threshold based on laser pulse width is determined for each layer. The highest of these thresholds is selected, and a beam of one or more laser pulses is generated with a fluence between the selected threshold and approximately ten times that threshold. The laser pulse width can range from approximately 0.1 picosecond to about 1000 picoseconds. Additionally, a high pulse repetition frequency is chosen to enhance scribing speed, typically between 100 kHz and 100 MHz.

Another significant patent involves laser machining of fired ceramic and other hard materials. This method includes scribing a workpiece with a laser beam along a sequence of parallel paths within a cutout region. The scribing process creates a kerf that widens as the laser beam advances, directing debris away from the laser paths to improve throughput and quality. The method also incorporates a high-velocity gas stream to manage debris flow and cool the interface, while adjusting the focus depth of the laser beam as the kerf deepens.

Career Highlights

Throughout his career, Peter has worked with prominent companies such as Electro Scientific Industries, Inc. and Applied Materials, Inc. His experience in these organizations has significantly contributed to his development as an inventor.

Collaborations

Peter has collaborated with notable individuals in the industry, including Asher Klatchko and James N O'Brien. Their joint efforts have likely fostered innovation and advancement in their respective fields.

Conclusion

Peter Pirogovsky's work in laser technology exemplifies his innovative approach and dedication to advancing the field. His patents reflect a commitment to improving processes and materials, making significant contributions to the industry.