World Vol.159 (U.S., etc.)


https://twitter.com/HudsonInstitute/status/1416080192997519361


https://twitter.com/France24_en/status/1415989597306335232
https://twitter.com/France24_en/status/1415997138702671873
https://twitter.com/France24_en/status/1415975747856912387
https://twitter.com/France24_en/status/1416065086490247169


https://twitter.com/AFP/status/1416027338588962817


Science and Technology Vol.72 (cobalt, etc.)


https://twitter.com/ORNLCleanEnergy/status/1225547215290191872
https://twitter.com/EnergyUT/status/1283427004239548424


https://twitter.com/energigune_brta/status/1276078176268095488


https://twitter.com/kiteandkeymedia/status/1410017989529853955

https://twitter.com/UNCTAD/status/1117782638121635840


https://twitter.com/JackPosobiec/status/1410717662225780745


https://twitter.com/Cambridge_Eng/status/1399640610584268800


https://twitter.com/NASA/status/1410270726729388039


World Vol.155 (U.S., EU, etc.)

Metals for a Green and Digital Europe | @GEF_Europe
EU green deal could transform metals demand (03/01/2021) | @argusmedia
European Green Deal | @euromines
The green transition challenged by the metal supply chain | @SultanEtn
The metal supply chain challenging the EU Green Deal and put forward policy recommendations (04/07/2020) | @INNOVATION_PL
EU’s ‘green mining’ concept? – there’s no such thing | @euobs
A Policy Mix for Dematerialisation | @EcologicBerlin
Metals recycling in EU could collapse under new rules, companies say (06/03/2021) | @reuters
The geopolitics of the European Green Deal (03/02/2021) | @ecfr
Fortescue Metals Eyes 15 Million Tons of EU Green Hydrogen by 2030 (Video; 05/26/2021) | @bsurveillance


https://twitter.com/ClarkCountyNV/status/1411749334517882882
https://twitter.com/KTNV/status/1411767014285262858


https://twitter.com/KOLOTimko/status/1411750334184099840
https://twitter.com/KOLOTimko/status/1411736900797300737

https://twitter.com/letterboxd/status/1411614784735178756
https://twitter.com/patrickdextervc/status/1411633722101800963


https://twitter.com/MagrinyaJordi/status/1409576651067908103


Science and Technology Vol.71 / World Vol.154 (The Role of Critical Minerals in Clean Energy Transitions @IEA)

This is a very useful open-access report. I appreciate @IEA’s contribution to all the human beings.
(It is the first time to paste as many as 20 screenshots on this website. Hope this is helpful.)





















World Vol.152 (U.S.)

https://twitter.com/Brooke_Medina_/status/1397231057053917190


https://twitter.com/FinancialXpress/status/140828354770661376
https://twitter.com/SilverElMining/status/14083190822443622411


https://twitter.com/KuyaSilver/status/1407326908317057025


World Vol.151 (U.S., U.K., etc.)


https://twitter.com/ABsteward/status/1405948924133888000


https://twitter.com/EvilDoctorK/status/1406949675043860483


https://twitter.com/wef/status/1407398092605997057
https://twitter.com/wef/status/1407428247596548104
https://twitter.com/wef/status/1406643001842049031
https://twitter.com/wef/status/1406537309814550528
https://twitter.com/wef/status/1406250418322083843


https://twitter.com/wef/status/1406612802664484875


https://twitter.com/tableaupublic/status/1405586268982059022


UK Vol.186


https://twitter.com/ChathamHouse/status/1405888306483810304


https://twitter.com/ChathamHouse/status/1405855079979261952


https://twitter.com/RUSI_org/status/1407345252642459667


https://twitter.com/RUSI_org/status/1407706693425930246


https://twitter.com/BBCWales/status/1408077544096682002


World Vol.150 (U.S., Australia, etc.)


https://twitter.com/ANUBellSchool/status/1393053501530546176


https://twitter.com/ANUCrawford/status/1405099589796089856
https://twitter.com/ANUWarStudies/status/1402189917623664640


https://twitter.com/CFR_org/status/1405929520008466436


https://twitter.com/PVDMonthly/status/1404506038519357448


https://twitter.com/PVDStreets/status/1404433750944063490


World Vol.149 (U.S., New Zealand, etc.)


https://twitter.com/AFP/status/1405731183527219205


World Vol.148 / Science and Technology Vol.67 (semiconductor)

Top USA and International Semiconductor Manufacturers | @Thomasnet

2020 STATE OF THE U.S. SEMICONDUCTOR INDUSTRY (PDF; 06/2020) | @SIAAmerica

The Semiconductor Supply Chain: Assessing National Competitiveness (PDF; 01/2021) | Center for Security and Emerging Technology (CSET)

Overview Of The Semiconductor Capital Equipment Industry (01/15/2019) | @SeekingAlpha
Memory chips are used to store data electronically in the form of bits (8bits = 1 byte). The most common types of memory chips made by the industry today are Dynamic Random Access Memory (“DRAM”) and NAND flash. DRAM is volatile memory, which means it temporarily stores each bit of data in a separate capacitor while the associated device is powered on. DRAM is commonly used by data servers and mobile devices. NAND (short for NAND flash) is non-volatile memory (“NVM”), which means it stores data even if the power is switched off. It’s called NAND because it’s a type of memory that resembles the NAND (not-and) logic. NAND is commonly used in memory cards and solid state drives (“SSD”). The major trend in memory today is the switch to three-dimensional (3D) memory where memory cells are built vertically, instead of horizontally (planar), which increases memory bit density.
Logic chips are the fundamental building blocks for digital electronics. Logic chips are constructed from connecting individual digital logic gates that perform logical operations of AND, OR and NOT on binary numbers. (This is where the NAND or not-and comes from). Logic chips perform calculations that drive computer processing.
Semiconductor manufacturers are generally focused on designing chips for various device applications. The semiconductor capital equipment industry (“semi-cap” for short) provides the equipment for these manufacturers.
The semiconductor industry is to electronics what the mining industry is to finished metal products. Taking this one step further, the semi-cap industry supplies the “picks and shovels” for the broader semiconductor industry.

The Main Types of Chips Produced by Semiconductor Companies (05/19/2020) | @investopia
Memory Chips; Microprocessors; Graphic Processing Units (GPUs); Standard Chips (Commodity ICs); Analog Chips; Mixed Circuit Semiconductors

Understanding Memory – An inside look at different memory types and how they work. (02/15/2018) | @semiEngineering
While logic chips work as the “brains” of an electronic device, performing functions using mathematical operations, memory chips store data. The basic building block of a memory chip is a cell, a tiny circuit with a capacitor (which stores data as a charge) and one or more transistors (which activate data). The capacitor is either charged or discharged, corresponding to the two possible data values (“1” or “0”), where this smallest unit of data is known as a “bit”.
The cells are arranged in a row and have a bit line structure that connects into a memory “address” called a word line. The address provides a means of identifying a location for data storage, and the word line forms an electrical path allowing all the memory cells on that row to be activated at the same time for storage (“write”) or retrieval (“read”). Data access is initiated with electrical signals – a row address strobe (RAS) and a column address strobe (CAS) – that together pinpoint a cell’s location within an array. If a charge is stored in the selected cell’s capacitor, these signals cause the transistor to conduct, transferring the charge to the connected bit line, causing a slight voltage increase that reads as a “1”.

The basics of microchips | ASML

MARKETS & PRODUCTS | ASM

Types of Semiconductor Devices | TOSHIBA

Guide to the major types of computer chips (03/26/2019) | @theburninhub

The global semiconductor silicon wafer market is expected to reach an estimated $17.4 billion by 2026 with a CAGR of 6.4% from 2020 to 2026 (06/14/2021) | @GlobeNewswire

Global Logic Semiconductor Market to Surpass $129 Billion by 2024 – Featuring Intel, Samsung Electronics, Xilinx, and NXP Semiconductors – ResearchAndMarkets.com (05/17/2019) | @BusinessWire

Global Logic Semiconductor Market – Industry Trends and Forecast to 2028 (05/2021) | DATA BRIDGE

What is Semiconductor Memory? | @ROHMsemi


World Vol.143 (U.S., etc.)


World Vol.142


https://twitter.com/dw_sports/status/1403263237869785090
https://twitter.com/France24_en/status/1403348619537829888


https://twitter.com/France24_en/status/1403304544440827908


https://twitter.com/France24_en/status/1403028678993498119


https://twitter.com/johnhamdavidson/status/1394657321851269125
https://twitter.com/PortsChamber/status/1402749950203682820


https://twitter.com/olgatuleninova/status/1399459214611861506


World Vol.141 (U.S., etc.)


https://twitter.com/CAgovernor/status/1401966933403050007


https://twitter.com/Ekateri03519672/status/1399606903274151936


World Vol.140 (U.S., etc.)

https://twitter.com/RevereCopper/status/1288489799188393984


https://twitter.com/joncoopertweets/status/1396306525669445635


https://twitter.com/Ohmszy/status/1400964664469594116


https://twitter.com/MassEMA/status/1399763336003215362


https://twitter.com/andyvalencianoy/status/1400618215915544577


https://twitter.com/rogue_trippers/status/1400435589611204609

Belfer Center Annual Report 2020 (w PDF; 01/2021) | @BelferCenter


World Vol.139 (semiconductor)

10 LARGEST SEMICONDUCTOR COMPANIES IN THE WORLD (03/08/2021) | Zippia
Intel (INTC); Samsung Electronics; Taiwan Semiconductor Manufacturing Co. (TSMC); SK Hynix Inc.; Broadcom Corporation; Qualcomm; Micron Technology; Applied Materials; Nvidia Corporation; Texas Instruments Inc.

15 Biggest Semiconductor Companies in the World (01/07/2021) | @yahoolife
Intel (NASDAQ: INTC); Samsung; Taiwan Semiconductor Manufacturing Co. (NYSE: TSM); Qualcomm (NASDAQ: QCOM); SK Hynix; Micron Technology (NASDAQ: MU); Broadcom (NASDAQ: AVGO); Applied Materials (NASDAQ: AMAT); Texas Instruments (NASDAQ: TXN); NVIDIA (NASDAQ: NVDA); STMicroelectronics NV (NYSE: STM); Lam Research (NASDAQ: LRCX); Advanced Micro Devices (NASDAQ: AMD); Infineon Technologies; NXP Semiconductors (NASDAQ: NXPI)

20 Most Promising Semiconductor Companies (2017) | @SINewsUpdates
SIERRA CIRCUITS; AppliedMicro; Cadence Design Systems; Infineon Technologies; OmniPHY; Applied Materials; Broadcom; Cactus Semiconductor; Cavium; DXCorr Design; GeneSiC Semiconductor; GigaCom Semiconductor; Intel [NASDAQ:INTC]; InvenSense [NYSE:INVN]; KLA Tencor [NASDAQ:KLAC]; MaxLinear [NYSE:MXL]; Microchip Technology [NASDAQ:MCHP]; Moschip [BSE:532407]; Qualcomm [NASDAQ:QCOM]; Synopsys [NASDAQ:SNPS]

10 Biggest Semiconductor Companies (07/30/2020) | @Investopedia
Intel Corp. (INTC); Taiwan Semiconductor Manufacturing Co. Ltd. (TSM); Qualcomm Inc. (QCOM); Broadcom Inc. (AVGO); Micron Technology Inc. (MU); Texas Instruments Inc. (TXN); ASE Technology Holding Co. Ltd. (ASX); NVIDIA Corp. (NVDA); STMicroelectronics NV (STM); NXP Semiconductors NV (NXPI)

Top 50 Semiconductor Manufacturing Companies in the World (05/31/2021) | @rayguide
Top 10 Best Semiconductor Manufacturing Companies in the World; List of Next Top 40 Best Semiconductor Manufacturing Companies in the World

26 SEMICONDUCTOR COMPANIES EMPOWERING TECHNOLOGICAL GROWTH ACROSS INDUSTRIES (05/03/2021) | @BuiltIn
AMBIQ MICRO; BROADCOM; MARVELL; SENTONS; CELERA; NUVIA; CORSAIR; TEMPO AUTOMATION; APPLE; UNIVERSAL SEMICONDUCTOR; AMD; CADENCE DESIGN SYSTEMS; II-VI; GCT SEMICONDUCTOR; SYNTIANT; ALIEN TECHNOLOGY; REAL SILICON; LIGHTMATTER; SILICON TURNKEY SOLUTIONS; PATCHR.IO; VOLTA LABS; VITA INCLINATA TECHNOLOGIES; NANOGRAF CORPORATION; LIGHTELLIGENCE; DOVER MICROSYSTEMS; REVELHMI

TSMC dominance as the world’s largest chipmaker explained (04/02/2021) | @TechWireAsia

EU Weighs Deal With TSMC, Samsung for Semiconductor Foundry To Fix Supply Chain Risk (02/10/2021) | @business

2 charts show how much the world depends on Taiwan for semiconductors (03/15/2021) | @CNBC

Semiconductor Companies: Where Are They In The Chip Cycle? (05/24/2021) | @IBDinvestors

Boom quarter for top 10 semiconductor companies (05/25/2021) | @eeNewsEurope

Regaining The Edge In U.S. Chip Manufacturing (10/26/2020) | @SemiEngineering

How to Create a Vibrant Semiconductor Manufacturing Industry in the United States (07/13/2020) | @3DInCites

Top IC design companies worldwide 2020 (03/31/2021) | @StatistaCharts

Revenue of Top 10 IC Design (Fabless) Companies for 2020 Undergoes 26.4% Increase YoY Due to High Demand for Notebooks and Networking Products, Says TrendForce (03/25/2021) | @designreuse

Global Top Ten IC Design Companies Ranked by Revenue; Only Qualcomm and MediaTek Suffered Decreases (03/04/2019) | @designreuse

Fabless Semiconductor Companies Stocks List | @SwingTradeBot

Lagging but motivated: The state of China’s semiconductor industry (01/07/2021) | @BrookingsInst

Fab Or Fabless: Which One Do You Choose? (03/27/2017) | Sigenics

U.S. companies maintain largest share of fabless company IC sales | Semiconductor Digest

Fabless Companies vs. IDMs in the Semiconductor Industry (10/23/2012) | @Samsung

The Future of Semiconductor Industry from “Fabless” Perspective (PDF; 02/01/2008) | @Berkeley_EECS

Why Fabless Semiconductor Companies Rely on Tensoft SemiOps (w Video; 05/03/2021) | @erpsoftwareblog

5 Fabs Own 54% of Global Semiconductor Capacity (02/10/2021) | @EPSNewsonline
Samsung; TSMC; Micron; SK Hynix; Kioxia/WD
Five Semiconductor Companies Hold 53% of Global Wafer Capacity (02/13/2020) | IC Insights, Inc.

If Intel Builds A Fab In The U.S. It Should Focus On Developing Its Foundry Business Model (05/11/2020) | @Forbes

Top 10 Semiconductor Foundries of The World in 2020 (12/18/2020) | @Technosports

Top 5 Vendors in the Global Semiconductor Foundry Market from 2017 to 2021: Technavio (07/14/2017) | @BusinessWire
TSMC; GLOBALFOUNDRIES; UMC; SMIC; SAMSUNG

5 Top Semiconductor Fab Stocks to Invest in During the Global Chip Shortage: It’s a good time to be in the chip-manufacturing business. (04/02/2021) | @TheMotleyFool

Top 3 Semiconductor Foundry Stocks To Buy (03/21/2019) | @SeekingAlpha

Foundries Services | @AnySilicon

SK Telecom calls for bigger investment in semiconductor foundry (04/22/2021) | Aju Business Daily

SEMICONDUCTOR FOUNDRY MARKET – GROWTH, TRENDS, COVID-19 IMPACT, AND FORECASTS (2021 – 2026) | @MordorIntel

Leading semiconductor foundries revenue worldwide from 2019 to 2021, by quarter (in million U.S. dollars) | @StatistaChart

Can China Become the World Leader in Semiconductors?: China’s semiconductor industry faces considerable challenges in reaching global leadership status. But don’t assume it’s impossible. (09/25/2020) | @Diplomat_APAC

Foundries Multi-Projects Wafer (MPW) | Mirror Semiconductor, Inc.


World Vol.138 (G7, etc.)


https://twitter.com/TheParachuteReg/status/1400344553023016966


https://twitter.com/_The51/status/1399427389352931336


https://twitter.com/EUCouncil/status/1281310054096998403

https://twitter.com/CBItweets/status/1399244250408128513


https://twitter.com/G7/status/1398708341338263560


https://twitter.com/OECD_ENV/status/1397190858798243850


https://twitter.com/SkyNews/status/1399302473161101312


https://twitter.com/TomHall/status/1397303402858647552


https://twitter.com/Yankees/status/1390804948716302338


https://twitter.com/KOB4/status/1399777768632504320


https://twitter.com/KOB4/status/1399713599690481668


Science and Technology Vol.65 (semiconductor)




https://www.youtube.com/watch?v=DvYfs6rXKuE

Semiconductor Materials Types” Groups & Classifications | @ElecNotes
Germanium; Silicon; Gallium arsenide; Silicon carbide; Gallium Nitride; Gallium phosphide; Cadmium sulphide; Lead sulphide …

What is a Semiconductor? Types, Examples & Applications | @SyedZainNasir

Semiconductor Devices and Circuits, Applications | ElProCus

Different Types of Semiconductor Devices | @eh_org

Understanding the difference between n- and p-type semiconductors (03/03/2021) | Mesago Messe Frankfurt GmbH

P-Type, N-Type Semiconductors | LibreTexts

Semiconductors | lumen

Semiconductors | The Fact Factor

Types of Semiconductor Devices | @ToshibaUSA

Semiconductors | BYJU’S

Doped Semiconductors | Hyperphysics

Semiconductor (05/18/2020) | Investopia
Types of Semiconductors
Broadly speaking, semiconductors fall into four main product categories:
Memory: Memory chips serve as temporary storehouses of data and pass information to and from computer devices’ brains. The consolidation of the memory market continues, driving memory prices so low that only a few giants like Toshiba, Samsung and NEC can afford to stay in the game.
Microprocessors: These are central processing units that contain the basic logic to perform tasks. Intel’s domination of the microprocessor segment has forced nearly every other competitor, with the exception of Advanced Micro Devices, out of the mainstream market and into smaller niches or different segments altogether.
Commodity Integrated Circuit: Sometimes called “standard chips”, these are produced in huge batches for routine processing purposes. Dominated by very large Asian chip manufacturers, this segment offers razor-thin profit margins that only the biggest semiconductor companies can compete for.
Complex SOC: “System on a Chip” is essentially all about the creation of an integrated circuit chip with an entire system’s capability on it. The market revolves around growing demand for consumer products that combine new features and lower prices. With the doors to the memory, microprocessor and commodity integrated circuit markets tightly shut, the SOC segment is arguably the only one left with enough opportunity to attract a wide range of companies.

How Semiconductors Work (02/11/2021) | @HowStuffWorks

What are semiconductors? | @HitachiGlobal

Semiconductor Industry Association | @SIAAmerica

Semiconductor | Britannica

The Chip Shortage Keeps Getting Worse. Why Can’t We Just Make More? (05/06/2021) | @business
… it takes years to build semiconductor fabrication facilities and billions of dollars—and even then the economics are so brutal that you can lose out if your manufacturing expertise is a fraction behind the competition. …
Manufacturing a chip typically takes more than three months and involves giant factories, dust-free rooms, multi-million-dollar machines, molten tin and lasers. The end goal is to transform wafers of silicon—an element extracted from plain sand—into a network of billions of tiny switches called transistors…

Can Investors Profit From the Semiconductor Shortage?: Yes, you can. Here’s how. (05/28/2021) | @TMFZahrim,@TheMotleyFoolUK

The 2021 Technology Outlook for Silicon Carbide Semiconductors (03/08/2021) | @onsemi

Electronics Basics: What Is a Semiconductor? | @ForDummies

American Semiconductor, Inc

Semiconductor | @3M

Why there is a global semiconductor shortage, how it started, who it is hurting, and how long it could last (12/05/2021) | @scmp

America’s Semiconductor Industry Doesn’t Need $52 Billion in New Subsidies To Stay Ahead of China: Industrial policy is the wrong answer to a problem that mostly doesn’t exist. (05/27/2021) | @reason

Teradyne: Robots, 5G, Semiconductors – A Winning Formula For Sustainable Growth (05/30/2021) | @Teradyneinc,@SeekingAlpha

SEMICONDUCTOR ENGINEERING | @semiEngineering


World Vol.137 (U.S., etc.)


https://twitter.com/AIMInvestor4/status/1389283392894783492


https://twitter.com/KavangoRes/status/1387330255950581764


https://twitter.com/KSL5TV/status/1396971421440507907


https://twitter.com/TheSun/status/1396926477984157696


https://twitter.com/TheSun/status/1396994426023686144


Northern Europe Vol.6


https://twitter.com/denmarkdotdk/status/1364198353555386368


https://twitter.com/DreadBong0/status/1331990074519670785
https://twitter.com/WestIceland/status/1356605769999876099


https://twitter.com/IcelandPolitics/status/1369966705154359299


https://twitter.com/eu_eeas/status/1356306106633564160

https://twitter.com/SITEStockholm/status/1392135244661276685
https://twitter.com/SITEStockholm/status/1376519597994696711
https://twitter.com/SITEStockholm/status/1354708887778193413


https://twitter.com/Ricardo_Duque_/status/1355158575124017155


https://twitter.com/Lunduni_LUSEM/status/1316765747453014016


World Vol.134 (Middle East, U.S., etc.)


https://twitter.com/PlattsOil/status/1392118949052129288


https://twitter.com/MiddleEastEye/status/1395550085874954240


World Vol.133 (newscomauHQ, NZStuff, CBCNews)


World Vol.130


https://twitter.com/cheddar/status/1390410910473261056

https://twitter.com/FilsanAhmad/status/1392431442924384258


https://twitter.com/AJEnglish/status/1392987845019701250


https://twitter.com/thetaeprint/status/1393009288784793602


https://twitter.com/seokjinbit/status/1392994555465670660


https://twitter.com/aqadir97/status/1393001007529873412


https://twitter.com/BossyAymman/status/1392997527159455744
https://twitter.com/paletawfik/status/1393004433492037633
https://twitter.com/Rehan_Alfarra98/status/1393000633112879106
https://twitter.com/zei_squirrel/status/1392999647363403785


Ireland Vol.72


https://twitter.com/fiannafailparty/status/1389101375309729792


https://twitter.com/FineGael/status/1388834658893377538


https://twitter.com/HSELive/status/1389147216816709637


https://twitter.com/HHumphreysFG/status/1389140003222171649


https://twitter.com/rte/status/1384189800975151104


https://twitter.com/rte/status/1377259636894494726


https://twitter.com/RTEOne/status/1329926882016505867


World Vol.123 (Biden speech, Canada, raw materials, etc.)