Alan 🔔

looking at tiny things since 2007

[Alan 🔔 @atAlanBell]

@Alex_Intel_ Where does 44 go? Tommy Reid isn't giving that land up. I'm not doubting expansion, just wondering where it goes.

[Alan 🔔 @atAlanBell]

@ballsdotie Irish paper 2 was Argentina England. Half the class left after earliest time possible. Great game, no regrets!

[Alan 🔔 @atAlanBell]

@sevdaloji What type, can you differentiate the types

[Alan 🔔 @atAlanBell]

@lithos_graphein The dimensions here aren't impressive. It's what beam current they're using. With the Zeiss nanofab the max fov was 500 μm x 500μm. And beam current was rarely above 10s pA. I just don't see how this scales.

[Alan 🔔 @atAlanBell]

@NickParkerPrint @FutureJurvetson @dch_nl @farzyness The bottom right image on the first tweet suggests mask, but with gas field ionisation you get a highly collimated beam. So a mask doesn't make sense.

[Alan 🔔 @atAlanBell]

@NickParkerPrint @FutureJurvetson @dch_nl @farzyness And the beam current will be very low ~pA. I would be interested to know what is being patterned is it resist and then pattern transferred into the active material

[Alan 🔔 @atAlanBell]

@NickParkerPrint @FutureJurvetson @dch_nl @farzyness From the schematic and the asterisk above the He it is a gas field ion source. This will give high resolution because you need very high fields to ionize helium. However, ionisation will only take place at the single atom (likely of a 3 atom or trimer configuration).

[Alan 🔔 @atAlanBell]

@FutureJurvetson What is the beam current?

[Alan 🔔 @atAlanBell]

@arxiv Unrelated but do we know the first paper? And where is it now in terms of citations etc

[Alan 🔔 @atAlanBell]

@JoelJammal @AccidentalP

[Alan 🔔 @atAlanBell]

@JohnPetersonFW @shootermcgavin @AdamSandler https://t.co/KQmD9eOA1V

[PGA of America @PGA]

¯\_(ツ)_/¯

[Alan 🔔 @atAlanBell]

@fashion_nfl Yes

https://t.co/zejRM8aMsK

[ESPN @espn]

It's the snow for us ❄️😍 @MiguelCabrera

#OpeningDay | (via @tigers)

[Alan 🔔 @atAlanBell]

@IanCutress Ian what is the reason for 10nm vanishing 4 years ago? Is tsmc 10nm similar to intel? Expensive node that does yield?

[Alan 🔔 @atAlanBell]

@aandr314 @quantumbeans Is it not Horizontal Field Width? But yeah those match!

[Alan 🔔 @atAlanBell]

@aandr314 @quantumbeans But the mags are different!

[Alan 🔔 @atAlanBell]

@YonCalahorra @beamshift Any milling going on? Interesting that it seems to be in a TFS PFIB. And we're at 52.

Nice image

[Alan 🔔 @atAlanBell]

@GolfTravelerJoe Iceland.

https://t.co/9GNrF0eqFS

[Alan 🔔 @atAlanBell]

@PhysicsSteve I always find h index quite interesting. Like, lowest h index of Nobel Prize winner. Lowest h index age rated (h index matching ones age). Worst citations per h index. There's a lot!

[Alan 🔔 @atAlanBell]

@ClippersSD @JayPosnerSD Let's not forget chasing Marty out. Could be a while before a 14 win coach is fired

[Alan 🔔 @atAlanBell]

@BillyThomson80 @ED_TABS_90 @mark_j1979 @wallface @CapersColly What is the charge?