I tried to make a camera sensor

Summary

In this video, the presenter explores advanced oxidation techniques for copper samples, comparing thermal oxidation with laser methods. They highlight the innovative capabilities of the Vista 200 infrared microscope, which achieves nanometer resolution by utilizing near-field effects. Preliminary results indicate significant changes in grain size and chemical composition, with ongoing challenges in device testing leading to unexpected failures. The speaker outlines plans for refining the experimental setup to develop a functional 16-pixel camera, showcasing the intersection of cutting-edge technology and DIY experimentation in semiconductor research.

Takeaways

• 🧪 The experiment focuses on oxidizing copper samples to study their properties and identify different copper oxides.
• 🔥 Oxidation methods included furnace oxidation, plasma oxidation, and laser oxidation, each with distinct advantages and drawbacks.
• 🔬 The Vista 200 microscope enables high-resolution infrared spectroscopy, achieving spatial resolution down to 5 nanometers.
• 📊 Preliminary results indicate a correlation between oxidation temperature and grain size, with higher temperatures yielding larger grains.
• 📈 The infrared spectra revealed specific signals indicating the presence of copper(I) oxide and copper(II) oxide in the samples.
• ⚠️ Sample contamination was a significant concern, necessitating careful packaging and preparation to ensure reliable results.
• 💡 The Vista 200 utilizes near-field optics, allowing it to bypass traditional diffraction limits in infrared spectroscopy.
• ⚡ The speaker experienced challenges with high voltage testing, leading to device failures and the observation of potential thermite reactions.
• 🛠️ Ongoing adjustments to control software and hardware aim to improve alignment and process reliability for future tests.
• 📅 The speaker hopes to develop a functional 16-pixel camera sensor by the end of the year, building on current findings.

Q & A

What is the primary goal of the experiments discussed in the video?

The primary goal is to investigate the oxidation of copper and produce primarily copper(II) oxide using various oxidation methods.

What oxidation methods are compared in the study?

The study compares furnace oxidation, laser oxidation, and oxygen plasma oxidation techniques.

What are the advantages of using laser oxidation?

Laser oxidation is fast and can be targeted to specific areas, making it easier to integrate with other steps in the fabrication process.

How does the Molecular Vista Vista 200 microscope work?

It uses photoinduced force to sense the chemical makeup of a sample with nanometer resolution by measuring the interaction between a metal-coated probe and the sample surface.

What limitations does traditional infrared (IR) spectroscopy have?

Traditional IR spectroscopy lacks spatial resolution, as it is limited by the diffraction limit of photons, which restricts its ability to analyze small features in modern semiconductor devices.

What was observed in the AFM topography of the 600°C oxidized sample?

The AFM topography revealed a significant increase in grain size, confirming expectations from prior research.

What preliminary results were obtained from the oxidation tests?

The preliminary results indicated a presence of both copper(I) oxide and copper(II) oxide in the samples, with differences in spectral signals correlating to each oxide.

What issues did the speaker encounter during testing?

The speaker faced device failures, including an incident where the device was destroyed due to excessive voltage, leading to a short circuit and physical damage.

What future steps are planned following the preliminary results?

The speaker plans to rerun the whole procedure on quartz wafers and refine the experiments based on the current findings to achieve a working device.

What significance does the speaker attribute to the sponsorship from Molecular Vista?

The speaker appreciates the sponsorship as it provided support for real data collection rather than just promotional content, allowing for a more in-depth exploration of the experimental process.