IR camera 1550 nm IR light source

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Discussion Overview

The discussion centers around the search for an infrared (IR) camera capable of detecting a 1550 nm IR light source, specifically for imaging silicon wafers at the pixel level. Participants explore various camera options, technical specifications, and the feasibility of the proposed imaging approach.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Exploratory

Main Points Raised

  • One participant seeks an affordable IR camera that can capture images at the pixel level using a 1550 nm IR light source.
  • Questions arise regarding the meaning of "pix level" and the method of "hitting the pixels" with IR, with suggestions that a microscope lens may be used.
  • Another participant clarifies that a picture is composed of pixels and questions the feasibility of taking a picture of a single pixel.
  • Concerns are raised about the spectral range of suggested cameras, noting that some options are outside the required range for 1550 nm and suggesting the need for a short-wave infrared (SWIR) sensor.
  • Participants discuss the wide price range of IR cameras and emphasize the need for more specific criteria to narrow down options.
  • There is speculation about the purpose of the imaging, including whether it involves thermal imaging of a sensor array and the potential use of narrow band filters.
  • Suggestions are made for alternative approaches, including contracting with local test labs that may have the necessary equipment for the imaging task.

Areas of Agreement / Disagreement

Participants express confusion about the imaging requirements and the feasibility of achieving the desired results with a low-cost camera. There is no consensus on the best approach or camera model, and multiple competing views regarding the technical specifications and methods remain unresolved.

Contextual Notes

Participants note the importance of understanding the specific requirements for the camera, including spectral range and imaging techniques, which remain unclear. The discussion highlights the challenges of balancing cost with technical capabilities.

Who May Find This Useful

This discussion may be of interest to individuals involved in materials science, semiconductor research, or those seeking to utilize infrared imaging for specific applications.

btb4198
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I am looking for an IR camera that can pick up 1550 nm IR light source on the pix level. I have silicon wafers and I am going to hit the pixels with a 1550 NM IR light source and I want to be able to see the pix with a IR cam. I want to connect it computer and use a C# application to view the pixels.
anyone knows a good cam I can use ?
one that is not too expensive.
 
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btb4198 said:
IR camera that can pick up 1550 nm IR light source on the pix level. I have silicon wafers and I am going to hit the pixels with a 1550 NM IR light source and I want to be able to see the pix with a IR cam.
What's a pix level? What do you mean by "hit the pixels" with IR? Are you going to be taking the pictures through a microscope?

What about this simple IR camera add-on for your cellphone?

Cell Phone Versions: https://www.flir.com/browse/home--outdoor/mobile-accessories/

Higher Resolution IR Cameras: https://www.flir.com/browse/home--outdoor/handheld-thermal-cameras/

flirone-gen3-pro.png
 

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berkeman said:
What's a pix level? What do you mean by "hit the pixels" with IR? Are you going to be taking the pictures through a microscope?

What about this simple IR camera add-on for your cellphone?

Cell Phone Versions: https://www.flir.com/browse/home--outdoor/mobile-accessories/

Higher Resolution IR Cameras: https://www.flir.com/browse/home--outdoor/handheld-thermal-cameras/

View attachment 226958
when I say pix level,
I meant pixel level. so we can take a pic of a pixel.
and yes using a len to act like a microscope.
 
btb4198 said:
when I say pix level,
I meant pixel level. so we can take a pic of a pixel.
Sorry, but that doesn't make sense to me. A picture is composed of pixels. You don't take a picture of a pixel. You want to take pictures of your wafers, right?
 
berkeman said:
Sorry, but that doesn't make sense to me. A picture is composed of pixels. You don't take a picture of a pixel. You want to take pictures of your wafers, right?
The wafer it self has pixels. I have to zoom the IR cam into one pixel on the wafer and take a picture of it.
but really i need a cam that can do 1550 NM wavelength. I look at the cam you seen, and the data sheet does not give a that information
 
The spec sheet for the camera he suggested does give its spectral range (8 μm - 14 μm) but it is outside your range. It is a LWIR sensor. You need a SWIR sensor. That said, you still haven't really given much information. You need to know a lot more in order to pick out an IR camera. You can find them that run from 100 USD up to 200,000 USD and work all over the IR spectrum. You really need to narrow down your search criteria here.
 
btb4198 said:
The wafer it self has pixels. I have to zoom the IR cam into one pixel on the wafer and take a picture of it.
but really i need a cam that can do 1550 NM wavelength. I look at the cam you seen, and the data sheet does not give a that information
You want to take a thermal image of a sensor array? Is that your interest in 1500nm? Do you plan to use a narrow band filter to isolate around 1500nm?
All this stuff can be done but you want it cheap too. I think that could be the problem.
I was wondering. If you are looking for the temperature of the various pixels on an array, there may be other ways. For instance, the noise level from each pixel would be different, according to its temperature.
As I think it may not be feasible to do what you want, cheaply, perhaps you could give us a bit of context and the why's and wherefore's of your requirement.
 
sophiecentaur said:
You want to take a thermal image of a sensor array?
Yeah, I'm pretty confused as well. Knowing more about the project would help.
sophiecentaur said:
As I think it may not be feasible to do what you want, cheaply,
@btb4198 -- Another option if you only have to do this once or a small number of times would be to contract with a local test lab near you to use their test equipment for your photographs. We have all sorts of specialized labs here in Silicon Valley that we use for everything from Environmental Testing to Failure Analysis, etc. Contracting with them is usually cheaper than us buying the equipment ourselves.
 

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