Janelle Shane

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By Janelle Shane On December 02, 2013 - 1 min read

This one looked to me like a line of people, standing at attention. It’s actually an edge-on view of a comb-like grating structure, seen here as it passes between two rectangular alignment markers. The people-like shape is due to the weird way the plasma etcher ate away the semiconductor,

Friday November 22, 2013

By Janelle Shane On November 22, 2013 - 1 min read

Frostlike patterns emerge when acetone partially dissolves a plasticy layer of old photoresist. This is the same sample as in my previous post [http://tmblr.co/ZP7VLs_nDmsM], which used to be covered in jagged black mountains made of plasma-damaged photoresist. Now the mountains are mostly dissolved away, except for

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By Janelle Shane On November 22, 2013 - 1 min read

Frostlike patterns emerge when acetone partially dissolves a plasticy layer of old photoresist. This is the same sample as in my previous post [http://tmblr.co/ZP7VLs_nDmsM], which used to be covered in jagged black mountains made of plasma-damaged photoresist. Now the mountains are mostly dissolved away, except for

Monday November 18, 2013

By Janelle Shane On November 18, 2013 - 1 min read

This image is from a test of our plasma etcher, and shows a white plain of semiconductor laser material etched partially away by plasma. In the background is the black remains of photoresist that was protecting other areas of semiconductor from being etched - it did the job, but took

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By Janelle Shane On November 18, 2013 - 1 min read

This image is from a test of our plasma etcher, and shows a white plain of semiconductor laser material etched partially away by plasma. In the background is the black remains of photoresist that was protecting other areas of semiconductor from being etched - it did the job, but took

Wednesday November 13, 2013

By Janelle Shane On November 13, 2013 - 1 min read

A strange miniature landscape, none of which is supposed to be there. It’s quite small indeed - the pinnacles are each less than 1 micrometer tall, which means you’d need to stack a thousand of them on top of each other to equal one millimeter. This landscape is

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By Janelle Shane On November 13, 2013 - 1 min read

A strange miniature landscape, none of which is supposed to be there. It’s quite small indeed - the pinnacles are each less than 1 micrometer tall, which means you’d need to stack a thousand of them on top of each other to equal one millimeter. This landscape is

Sunday November 10, 2013

By Janelle Shane On November 10, 2013 - 1 min read

Standing at the edge of the world. At microscopic scales, even a clean break isn’t very clean - this electron microscope picture is of the edge of a piece of glass, on which I had fabricated a long wall of semiconductor (the long columned wall you see at the

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By Janelle Shane On November 09, 2013 - 1 min read

Standing at the edge of the world. At microscopic scales, even a clean break isn’t very clean - this electron microscope picture is of the edge of a piece of glass, on which I had fabricated a long wall of semiconductor (the long columned wall you see at the

Friday November 08, 2013

By Janelle Shane On November 08, 2013 - 1 min read

There are no dyes or pigments in this microscope image - it’s a thin clear film on a blank mirrorlike surface, and all the colors come from the interference of light waves. It’s the same effect that produces the rainbow colors in thin soap bubbles, or on a

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