There should be another close reason: "Unclear why you're asking."

Or "unclear why you are still alive when you have to ask this"

My Mouser search-fu is terrible. How do I go about finding multi-packs (like 3-5 spools) of different coloured hook-up wire? Searching "hookup wire" gets me single (100 ft!) spools.

Ideally I'd like 12-core multicolour flat ribbon cable (22-24AWG) that I can split apart.

search for ribbon cable?

I don't find what I want.

They seem to mostly have 100ft spools, I want more like 15.

Start the clock (though using Mouser, I am hamstringed)

@RobertAtkins This is the best you're getting by the meter on Mouser: eu.mouser.com/ProductDetail/Amphenol-Spectra-Strip/…

After all, Mouser, Farnell et al aren't made for hobbiests who don't even want a tiny reel of 30m

@RobertAtkins think of it this way -- you get to have hookup wire the next time you need it, instead of having to order the stuff again ;)

@RobertAtkins This could be a case where paging through the catalog is more effective than using the web search.

After going past a couple of pages I found a kit of 8 colors of Belden wire in 25 foot spools. Page 1378.

stock # 566 8824

But you can get 4 100-foot spools for about the same price

This is why I just stock 500m+ of the stuff I use a lot, direct from factory

No hassle for the intermediate 5 ~ 7 years

Or try a more hobbiest-oriented site.

Jameco has 6-color hookup wire assortment (25 foot spools) for $16.95

Not sure why Jameco prices are crazy lower than Mouser's on this. It's house-brand wire so probably just re-labelled from whoever is selling 1000 foot spools cheapest that month.

Once Asmyldof finds someone to pre-set-up a webshop for him at a more humanly reasonable cost that allows him to buy a mountain of empty spools in various sizes somewhere cheap, he'll also sell smaller quantities! :-D

Wire, heatshrink, sil-tube, PET weavings, LEDs, his soul, possibly his body (probably have to be the 99ct bin)

@Asmyldof somebody must be selling those to Jameco

@ThePhoton I'm thinking of looking if I can find a cheap Chinese supplier of DIY-spools. I remember, way back when, there used to be these spools that were 2 wheels and 3 bent segments that you could click into them in 2 locations (as a tight closed axle and as a wider one with small gaps)

That would be great for me, since I want to have various sizes, but also not 5 cubic meters of empty spools stacked up

2 lengths with 2 diameters of middle segments = 4 "core" sizes that could fit into a single mover's box, then 2 different wheels for each radius of segment = 8 different spool sizes with the addition of just one or two more boxes

Or, if there's 2 locations for the segments, it's even 16 different sizes

please read this short data sheet relating to a 70MHz scope that seems to be of good quality. Do you recommend this scope at all?

rayannik.com/files/products/4430DSO5000.pdf

@dirac16 Don't know the brand, don't know menus and usability. Specs seem to be at the mid to low end of ok for the purpose. Screen may lack some brightness, but can't be arsed to research and it'll be better than the 18yr old Tek that was my first Digital one. The fact they seem to think advertising video triggering on PAL/SECAM will gain them significant numbers of consumers worries me, as nobody working on that at least the last 10 years would want or consider buying new

@Asmyldof but if you look at this page you may agree that this is just a copy of its Chinese version, but far less expensive. amazon.com/Hantek-DSO5072P-Oscilloscope-Bandwidth-7-0-inch/dp/…

This company that doesn't have an understood reputation seems to reverse engineering the Hantek company, just compare above with DSO-5072P. They are very the same. Aren't they?@Asmyldof

they both look like tek knock-offs

@dirac16 I don't know because the link has no "specifications" and I'm not, to put it most mildly, a Hantek fan

Any idea why triple patterning would be required to manufacture a full-frame sensor?

> the circuit pattern of a full-frame sensor is too large to be projected on the silicon wafer all at once; it requires three separate exposures [...] This means that the number of masks and exposure processes is tripled.

media.the-digital-picture.com/Information/… page 11

Bear in mind that this is in 2006.

"is too large to be projected..."

How is that not explaining it exactly?

How would a pattern be too large to expose onto the silicon wafer? I thought they exposed the whole wafer at once...

aka: "What in that is not making sense to you, so that I can consider if I want to explain it"

@bwDraco No they don't

It's called WaferStepping

At least, presumably for that technoplogy

There's also LineScan (now), where it is possible, but in software sometimes painstakingly annoying, to do a full wafer of multiple sensors, but I'm not a LineScan expert, so I'll not vow to any of that being easier/harder

What you do with a projected stepper is have a lens, most machines with a fixed magnification (or shrinkification, would be more apt), a fixed plate of chrome film on glass for the image

Through the plate size, the fixed magnification, you get a fixed maximum image area

Often these are 15x15mm, 18x18mm, 22x22mm or 25x25mm, to my knowledge

Hmm. So they normally expose one or a few die's worth of silicon at a time...

I have only manufactured a scarce few machines and maintained only slightly more, so I may be missing some smaller and larger ones

Well, how do they manage to expose a 24x36mm die in one exposure these days?

They usually only expose a single die

That's why waferstepping makes sense

You have an image plate with all kinds of dies, you mask (with automatic blades, or by hand before you put it in) away everything you don't want, and then you step and expose a shitload of only the features you didn't mask

So it isn't triple patterning more than it is exposing three parts of a die separately.

For LED and MEMS production it does happen that a die many times the size of an exposure, even an entire wafer and only afterwards the cutting of the wafer makes the tiny chip dies

Most likely

They'd probably find a 22xN size repeatable pattern, to make an 22x30-something sensor

Full-frame sensor is 24x36mm.

Most machines are made to flip through wafers at breakneck speed, but changing a picture plate (retical) takes ages compared, so they'd definitely not be swapping it

It's possible they had a 25x25 setup and used that to do as I describe

So it is in fact triple patterning?

Again, this whitepaper goes back to 2006.

It's also possible they already had something smaller and did it even cleverer and then it would probably go through 3 machines all preloaded with their segment image

in 2006 there were plenty machine setups that did 40x40

It's more a mix of focal depth, projection area, feature size and acuracy, critical dimension, etc etc etc

Get a larger image, get a crappier this and that

So is this multiple patterning the reason medium-format sensors are so absurdly expensive?

Throughput is also affected by image size, since usually the lamp stays in the 500W to 4kW domain

Is it multiple patterning or die stitching?

Hmm, imaging isn't that expensive, especially not in a stepper setup, tried and true system

The thing that's expensive is starting up a process and having someone design the chip

divide that over 1/10000th the user base and get a 10000times higher cost estimate requirement to get the investors on board

@bwDraco Both terms can apply

It really depends on how they did what they did to give the fully proper terms to it, and I wasn't there for it

Mainly because I had nearly no money or materials to my name in 2006

Except for a shitload of Minolta cameras

;-)

lol

Canon mentions 200mm wafers.

LEDs are almost always stitched

Well, in the base layers

The reclectors are a bitch

One of the most demanding uses for the PAS5500 area

@bwDraco That doesn't narrow it down much

Anything from 2" to 8" and even some larger go in steppers that go back to... bah, ages ago!

BRB

Gotta force a public IP hop

Got stuff to do, too.

I believe I may be back now

Seems so

Feels too quick for it to have succeeded

See ya. Got work to catch up on.