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Thread: CoB possible for 2x2 tiles?

13 Discord messages from ℹ️ - Information/⁉️-questions/threads/cob-possible-for-2x2-tiles.md.

Category: ℹ️ - Information Parent channel: #⁉️-questions Thread ID: 1484328639502745670

Messages: 13

message-1484328639502745670

2026-03-19T23:12:05.15+00:00 — J-Lo (@crockpotveggies)

Content

Is chip-on-board possible for a 2x2 tile purchase? Or is this limited to 1x1 and smaller?
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message-1484332921652379739

2026-03-19T23:29:06.094+00:00 — Lofty (@ravenslofty)

Content

you can't get 2x2 tile slots.
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message-1484490645925138443

2026-03-20T09:55:50.491+00:00 — Tim 'mithro' Ansell (@mithro_)

Content

I'm afraid until we find a pratical way to do something like laser dicing we can only offer full and half slots.

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message-1493986953115471952

2026-04-15T14:50:46.558+00:00 — Dory (@dorythecat_v2)

Content

Just found this while purusing this, but, have you looked perhaps into something like MOPA fiber lasers? I don't know nor thinkg you all have a budget for this but it could be interesting to get multiples of slots for big projects imo
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message-1494873914952909020

2026-04-18T01:35:14.739+00:00 — Tim 'mithro' Ansell (@mithro_)

Reply/reference

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Content

@digshadow is my expert on lasers.
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message-1494904782106787930

2026-04-18T03:37:54.042+00:00 — digshadow

Content

@Dory yeah that was basically what I wanted to explore more. I actually did laser dicing essentially for open sauce last year by making my own 1" wafers out of larger wafers using a conventional 50w fiber. For this year I'm hoping to try to laser dice an art / tech demo "garage gold MPW." As part of that I'm going to experiment a bit with a 10W 355 and a few other things. I can share more details if you are particularly interested, but probably the discussion will mostly happen on the fossf-silicon discord (basically the SF chaper of hacker fab, DM if you want a link)
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message-1495758217089908786

2026-04-20T12:09:08.798+00:00 — namibj

Reply/reference

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Content

Share how close you manage to get to the scribe lines of Run1!
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message-1495759117141151969

2026-04-20T12:12:43.387+00:00 — Tim 'mithro' Ansell (@mithro_)

Content

The current scribe lines at 60um
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message-1495759955116949707

2026-04-20T12:16:03.176+00:00 — Tim 'mithro' Ansell (@mithro_)

Content

Examples of the actual dicing -

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message-1498053394504614101

2026-04-26T20:09:21.736+00:00 — J-Lo (@crockpotveggies)

Content

@digshadow do you think you'll have some results to share prior to closing Run 2? I'm still interested in finding a way to do 2x2 or similar cuts
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message-1498065438410539160

2026-04-26T20:57:13.227+00:00 — digshadow

Content

@J-Lo sorry can you clarify results? You mean doing laser dicing? That's only getting moved forward as a low priority project. Although I will add that if someone was really interested in that, it probably wouldn't take a lot of money to make it move a lot faster
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message-1498066449179086868

2026-04-26T21:01:14.213+00:00 — digshadow

Content

I would also go so far due to a combination of factors that the open sauce project is getting considered canceled now. There have been a number of technical barriers to get sputtering back online and I haven't found at least one other person that was really excited to join me for an open semi conductor booth
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message-1498066529223315649

2026-04-26T21:01:33.297+00:00 — digshadow

Content

I will see if I can get things over the edge, but it's kind of teetering right now as the application deadline approaches
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