January 2022 - Libresilicon-developers

Question: Robot arm design
by David Lanzendörfer 01 Feb '22

01 Feb '22

Hi everyone In all the designs for wafer transfer robots, I've seen so far on YouTube, they're horizontal only, with one linear actuator for changing the z-axis. I think however, that this design here is better, because we can also use it to load wafers into machines, which don't have horizontal loading: https://www.thingiverse.com/thing:1838120 What do you think? I just bought a 3D printer today and it should arrive in the next few days, then I can start prototyping. Cheers -lev

3 5

Position measurement
by David Lanzendörfer 26 Jan '22

26 Jan '22

Hi What about just buying a new cheap Chinese laser diode and a photo diode and then putting a mirror onto the lense carrier, which reflects the laser diode beam back to the photo diode next to the laser diode? Cheers -lev

4 6

ball screws
by Hagen SANKOWSKI 26 Jan '22

26 Jan '22

Hello List. Looking around I found this video about "chasing Micrometers with the best ball screws" https://www.youtube.com/watch?v=WoPPwGxgWEY Well, the use-case for this ball screws are more than the robot arm for loading and unloading the wafers. Thinking twice I imagine ball screws also - for the x-y table positioning on our stepper - for the x-y probing/sensing of the die with automatic test equipment All position problems looking quite similar. It would be nice to have a solution solved once, used many times. Regard, Hagen.

2 1

Batch loading... robot arms??
by David Lanzendörfer 26 Jan '22

26 Jan '22

Hi Since I seem to have accidentally hit myself into the face while I was asleep, due to a nightmare, and now have a kind of swollen eye, I've put off recording my batch load video and went deeper into the research for example clips instead. During that research I realized, that the most common method for loading and unloading has shifted from rubber bands to full blown robot arms, and I was thinking, we could actually also use robot arms. I could actually 3D print that robot arm and control it with an Arduino: https://www.youtube.com/watch?v=_B3gWd3A_SI&ab_channel=HowToMechatronics Opinions? -lev

6 19

Update: Stepper
by David Lanzendörfer 25 Jan '22

25 Jan '22

Hi I've just ordered 3 pieces of those dev boards here, they're dirt cheap: https://www.aliexpress.com/item/1005003386129982.html I'll tell you whether they're legit or not, when they arrive :D Cheers -lev

1 0

Announcement - Mumble session on Sunday 2022-01-23 @ 18:00 UTC
by Hagen SANKOWSKI 22 Jan '22

22 Jan '22

Hello List! This is our weekly announcement for our next Mumble Sessions on Sunday 2022-01-23 @ 18:00 UTC. Please join us as usual at our Mumble Server murmur.libresilicon.com at Port 64738, the Channel is IC. We like to follow-up our topics from mumble sessions before. Regards, Hagen.

1 0

pdk.libresilicon.com is down
by David Lanzendörfer 21 Jan '22

21 Jan '22

Hi I just wanted to shoot the demo video on how to use OpenLANE and QFlow, when I noticed that pdk.libresilicon.com is down. It's not hosted on my server, I just made the DNS entry, as far as I know, it's Philipp's server. It's dumb trying to record something and finding out it's broken Haha Cheers -lev -- (\__/) (='.'=) This is Ninja Bunny. (")_(") Copy and paste Bunny into your signature to help him gain world domination

2 2

My video is done
by David Lanzendörfer 20 Jan '22

20 Jan '22

Hi Here's the video... Took me three days... in some takes I'm so exhausted that I can't even talk anymore and sound as if I'd be drunk, in others I'm nearly crying... BUT I'm finally done recording and cutting everything! YES! Please leave me a like :D https://www.youtube.com/watch?v=5C1P83oO57k&ab_channel=TheLeviathan Cheers -lev

5 17

Announcement - Mumble session on Sunday 2022-01-16 @ 18:00 UTC
by Hagen SANKOWSKI 18 Jan '22

18 Jan '22

Hello List! This is our weekly announcement for our next Mumble Sessions on Sunday 2022-01-16 @ 18:00 UTC. Please join us as usual at our Mumble Server murmur.libresilicon.com at Port 64738, the Channel is IC. We like to follow-up our topics from mumble sessions before. Regards, Hagen.

3 2

Question: Opinion on background music in videos
by David Lanzendörfer 18 Jan '22

18 Jan '22

Hi What's your overall stance on Creative Commons background music in the background to make the presentation less dry? I just got a hang on cutting and I'm tempted to throw some background tune in :D I know the answer is probably "NO!" but I figured I ask anyway xD Cheers -lev -- (\__/) (='.'=) This is Ninja Bunny. (")_(") Copy and paste Bunny into your signature to help him gain world domination

2 1