Silane is like Methane, but with Silicon instead of Carbon (SiH4). Thanks god for doping was used Phosphine (PH3) and not Phosgene (COCl2), both are nasty, but the second is more. Plus I don't know how much is used, since nowadays doping is typically done by ion implantation rather than gas diffusion
yes... the only advantage of Hydrogen I can imagine is the abundance, for the rest I see only downsides.
Helium is relatively abundant and technically renewable: it's a byproduct of gas extraction, since it's continuously produced by the alpha-nuclear decay inside the earth. Of course doesn't mean the offer is adequate with the market request, especially after the Hormuz crisis
The claim that traditional electronics can't work at deep cryogenic temperatures is vastly exaggerated. Of course you can't take something as complex as a modern microprocessor and hope it works at 4K, but modern fully-depleted MOSFETs typically works. Their electrical characteristic will be different, so a tailored design it's often needed
I seriously don't get it. At my time in university, ALL the exams were oral. And most had one or two written parts before (one even three, the professor called it written-for-the-oral). Sure, the orals took two days for the big exams at the beginning, still, professors and their assistants managed to offer six sessions per year.
Maybe someonw can explain me, but I never understood the appeal of GPIB for modern instruments (legacy instruments are of course "excused"). Electrically is a terrible interface that introduces ground loops with the control computer. Speed are laughable and it requires exensive and exotic adapters with complex sw stack (I wish this projects good success, it's needed!). Ethernet in comparison tick all my boxes. It's electrically decoupled by default (just use UTP cables), crazy cheap, very fast and with sane sw stack thanks to vxi-11. You can even bypass visa if you wish and open a plain TCP socket, no need for any library. What am I missing?
with a bonding machine :)
doing that manually can be tedious, nowadays for IC that are bonded and not flipchipped it's all automatic. Manual bonding is still very used in research.
these prices are like airplanes: no one with volume pays list prices, it's something else. moreover, this FPGA is very peculiar. it's used to simulate ASIC during validation, so it's not really the typical FPGA that gets used in a project
Same issue, but instead I convert the USB-C signals of the laptop to HDMI/USB-A plus charging port with a cheap adapter. Then a KVM with HDMI/USB switching
Funny how the manufacturer proudly claims that the protocol is encrypted, but completely forget to mitigate replay attacks,thus making the encryption completely useless
In fact I'm quite surprised by this announcement. Gl.inet is famous for claiming that their os is based on openwrt, while it can be some vendor SDK that is based on some decade-old version of openwrt and have little in common today
Only for simple pcb. If you are making multi-layer pcb with complex stacks, pcb manufacturing and soldering (with associated tooling setup, validation and so) are easily 2 months of turnaround
Availability :) a RTG requires Plutonium 238, which needs to ne created almost on purpose in a nucleare reactor. Not all nations have this ability or they are running such expensive programs. Also in the USA they are reserved for programs where there is very little light available
Oh yes, I could mot agree more. We moved from Antora/asciidoc to mkdocs/markdown. Overall the situation improved (better HTML, faster builds, syntax highlighting of code,...) but I miss how good writing in asciidoc was
Despite the similar name, in Delft they were not looking at fundamental particles, but at quasiparticles in a solid state system. So, similar equations, but completly different physics
Just a masterpiece. The graphics and musical are just wonderful and inspiring. Enigms are good and the story solid.
Plus I played it when I was young, so it's special to me
Interesting product. It seems they ported some feature from the Versal family, like the hard LPDDR controller and the new XP5IO, so not just a cut down version of the bigger Artix