Fabricated Knowledge Profile picture
Dec 29, 2021 15 tweets 7 min read Read on X
Semiconductors can be a hard industry to understand, especially for investors without a technical background.

Here are a few of the books that really helped me understand semiconductors better. In order of approachability - a 🧵
1/ In the beginning there was Fairchild.

I think that is the best way to start. Makers of the Microchip by Christophe Lécuyer is the best book to begin with IMO.
2/ Fairchild of course birthed Intel - which is where "The Intel Trinity" by Michael Malone transition well into.

Intel of course is *the company* in semiconductor history and this was one of the better books I read about this topic.
3/ After Intel I think it's worth looking at it's Texas neighbor - Texas Instruments.

"Engineering the World - Stories from the first 75 years by Caleb Pirtile" did the best job at covering TI's long and storied history IMO.
4/ After TI - I think it's fair to start to look East.

The book that is frustratingly academic but filled with information is "Tiger Technology by John Matthews & Dong-Sung Cho"

Filled with amazing information about the histories of Taiwanese & Korean semi industries
5/ Now I think it's time to get a bit more specific. In particular I think it's time to read Fabless by @DanielNenni / @paulmclellan

Fabless IMO is one of the best books of the bunch, and the last chapter's predictions hold up shockingly well.
@DanielNenni @paulmclellan 6/ This is where the reading track is starting to fall apart IMO.

I'm going to recommend a book if you can get your hands on it called "Information for Everyone: The Applied Materials Story"

This is a pretty good history book on Applied and one of the few I've found.
7/ Given how hot Automotive is right now - I really liked Sensors in Automotive by @junkoyoshida

It's just a really easy to read no-jargon series of interviews that really brought me up to speed on automotive sensors
@junkoyoshida 8/ 400 level classes begin now! I can't pretend like I understood everything - but I did benefit massively from comprehending ~30% of these books.

Computer Architecture: A Quantitative Approach

The most recent editions foreword blew my mind and started me down the rabbit hole
@junkoyoshida 9/ Semiconductor Packaging: Materials Interaction and Reliability

This book is really good for an overview of all the basic packaging types and pros and cons. In a world of flipchip / ball bonding / tcb / and a lot more this one was crucial. I prob need to reread
@junkoyoshida 10/ I wrote my lithography primer of ASML after I read this book. It pretty much taught me a lot about litho from the DUV era + coating / spin process steps.

Fundamental Principles of Optical Lithography: The Science of Microfabrication
@junkoyoshida 11/ HONORABLE MENTIONS! Some of these I know will be good - some I am in the midst of reading - some are only slightly relevant.

(In midst of reading)
Handbook of Silicon Semiconductor Metrology
12/ just a good book anyone with an interest in tech and investing should read

Technological Revolutions and Financial Capital
13/ The Big Score: The Billion Dollar Story of Silicon Valley

To read but Malone was up earlier on the list
END /

There's probably a ton more books to be read over time. I am slowly adding to my list on Goodreads if you want to keep up.

goodreads.com/review/list/27…

Also if you don't want to read hard books on semis - always consider following along to my substack in my bio.

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More from @_fabknowledge_

May 11, 2024
Stupid observation but especially in semis when you gotta truly change your mind a lot, there gets a point where you gotta just flip your opinion if you either feel victory lappy or very confident in your belief. Auto and LSCC is mine like asap. Just GFL.
It always happens, you have a thesis go right, and you get to have like a gloat quarter, and then in your moment of max comfort you gotta get paranoid.

I like everyone else think NVDA numbers next year are too low, but I feel weirdly complacent in that one. Should still work.
When memory went from the worst thing ever to HBM glimmer of hope, you should have flipped max bullish asap. I think I was late to that one tbh.

Also in terms of “no one cares” the IOT names and consumer names super will work from here imo.
Read 5 tweets
May 29, 2023
Jensen's keynote thread: 1/n
I think the comparison of "how much things have changed in 5 years" was a good demo, but it really doesn't really flex what *really* has changed IMO
4060 ti, the most hated launch lmao - just had to talk about it hah
Read 32 tweets
May 24, 2023
Nvidia Earnings Thread: $NVDA

Let's see the most important AI company in action.

First: *NVIDIA SEES 2Q REV. $11.00B PLUS OR MINUS 2%, EST. $7.18B

1/n
Guidance:

Revenue $11.00B +/- 2% vs FactSet $7.17B
Non-GAAP gross margin 70.0%, +/- 50bp vs consensus 66.6%

There's no way EPS isn't a fucking face smash, wow there is just no way to have seen that candle coming.... jfc
I don't think we have *ever* seen 52% QoQ growth from a revenue base of ~7 billion. That is completely unprecedented.

For context, Intel's revenue next quarter is going to be like ~11bil. They passed them in 1 quarter. Food for thought, they are guiding to a beat no?
Read 15 tweets
May 13, 2023
Time to time, I flip through Sumco's earnings presentation and I'm like honest this is pretty good. These are forecasts, but their top-down from a wafer perspective is helpful

First is global data traffic Image
server shipments in millions of units - notice the 2023 down year Image
this is Sumco's estimates on smartphone wafers - assuming a slower CAGR and ~1.2b units in 23? Seems too high but eh who knows

smartphone is the new PC market lmao Image
Read 7 tweets
Jan 31, 2023
$AMD

Q4:
Rev $5.60B vs FactSet $5.51B
gross margin 51% vs guidance of 51%

Q1 Guidance:
Rev $5.3B +/- $300M vs FactSet $5.50B
YoY the Client and Gaming segments are expected to decline, partially offset by Embedded and Data Center segment growth.
Non-GAAP gross margin ~50%
Segments vs consensus - so a slight DC miss, slight client miss, gaming beat, embedded beat

Data Center $1.66B vs FactSet $1.72B
Client $903M vs FS $1.02B
Gaming $1.64B vs FS $1.53B
Embedded $1.40B vs FS $1.33B
guide was kind of tepid, and I thought DC was disappointing. But frankly in this environment, given what INTC has been doing next door this was a great result. Earnings call soon
Read 14 tweets
Dec 4, 2022
IEDM Interesting Graphic Thread

(I won't supply explanations - just squirreling this away for later)
Data center percentage of direct compute
someways to get better
Read 5 tweets

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