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UV laser drilling of SiC for semiconductor device fabrication
Apr 19 , 2021
Pulsed UV laser processing is used to drill micro holes in silicon carbide (SiC) wafers supporting AlGaN/GaN transistor structures. Direct laser ablation using nanosecond pulses has been proven to provide an efficient way to create through and blind holes in 400 µm thick SiC. When drilling through, openings in the front pads are formed, while blind holes stop ~40 µm before the backside...
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Method for testing for blind hole formed in wafer layer
Apr 19 , 2021
A new method for detecting blind holes in the contact layer of a multi-chip semiconductor test wafer makes use of the fact that if the hole is not a blind hole, a subsequent etch step extends the hole a predetermined distance into the layer immediately underlying the contact layer. After a predetermined number of holes have been etched through the contact layer and for a predetermined distance int...
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Laser drilling of micro-holes in single crystal silicon, indium phosphide and indium antimonide using a continuous wave (CW) 1070 nm fibre laser
Apr 19 , 2021
The laser micro-drilling of “thru” holes, also known as via holes, in Si, InP and InSb semiconductor wafers was studied using millisecond pulse lengths from an IPG Laser Model YLR-2000 CW multimode 2 kW Ytterbium Fibre Laser and a JK400 (400 W) fibre laser, both with 1070 nm wavelength. The flexibility of this laser wavelength and simple pulsing scheme were demonstrated for semiconduct...
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Small Holes in Silicon Wafer
Apr 19 , 2021
Small Holes in Silicon Wafer: Microholes in silicon wafer substrate. Potomac has the capability to drill holes, channels and pockets in silicon wafers with feature sizes as small as a few microns. Please contact us today to discuss your application.
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532nm laser marker case for drilling tempered glass
Apr 20 , 2021
532nm laser marker case for drilling tempered glass
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532 Green laser cut tempered glass
Apr 20 , 2021
532 Green laser cut tempered glass
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tempered glass be cut or drilled by 532nm green laser
Apr 21 , 2021
tempered glass be cut or drilled by 532nm green laser
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Charging head data line laser marking customer orders again 10 sets of S9 UV lasers
Apr 22 , 2021
Charging head data line laser marking customer orders again 10 sets of S9 UV lasers Mr. Zhang, runs a processing enterprise that produces various data lines, with 10,000 square meters of workshops, equipped with advanced production equipment, and can provide one-stop solutions from data line style development, design, production and sales. Since working with RFH for more than three y...
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How To Cut Tempered Glass With Laser
Apr 22 , 2021
Many of the mechanical or other laser methods cannot provide the level of precision and quality needed for this kind of products. Tempered glass cannot be cut, except with special laser cutters used by professionals. You can do edge work if you are careful, but you are weakening the edge substantially in doing so. The benefits of glass cutting. Get contact details and address | id: These co...
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Customers purchase 5 355nm UV lasers for PCB/FPCB processing
Apr 23 , 2021
Customers purchase 5 355nm UV lasers for PCB/FPCB processing Ultraviolet laser can mark various characters, symbols and patterns on the surface of circuit board PCB/FPCB, and the character size can range from millimeters to micrometers. In addition to effective anti-counterfeiting, it can also realize the control and traceability of product quality. Whether it is fine processing or processi...
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Nanosecond UV laser engraving PCB circuit board QR code will not fade or fall off
Apr 23 , 2021
Nanosecond UV laser engraving PCB circuit board QR code will not fade or fall off Ultraviolet laser can mark various characters, symbols and patterns on the surface of circuit board PCB/FPCB, and the character size can range from millimeters to micrometers. In addition to effective anti-counterfeiting, it can also realize the control and traceability of product quality. Whether it is fine p...
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355nm UV laser etching PCB/FPCB circuit board
Apr 23 , 2021
355nm UV laser etching PCB/FPCB circuit board Ultraviolet laser can mark various characters, symbols and patterns on the surface of circuit board PCB/FPCB, and the character size can range from millimeters to micrometers. In addition to effective anti-counterfeiting, it can also realize the control and traceability of product quality. Whether it is fine processing or processing efficiency, ...
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