跳到主要內容

發表文章

Can QLC Flash Memory Challenge HBM? SanDisk and Kioxia Unveil 9th-Gen QLC — and an AI Memory Repricing

One-sentence takeaway: AI memory demand is spreading from HBM to NAND flash. SanDisk and Kioxia's 9th-generation 2Tb QLC, paired with the new HBF architecture, could rewrite NAND's role in AI — and repric the entire AI hardware supply chain. One announcement, a 5.73% single-day surge On August 13, SanDisk shares jumped 5.73% in a single day, ignited by the company's joint unveiling with Kioxia of 9th-generation 2Tb QLC 3D flash memory built for AI infrastructure. This is no routine product refresh — industry analysts point to a repricing of the AI memory market worth up to $94 billion , and QLC, once dismissed as the "slow, cheap" storage technology, is now at the center of it. Why QLC was dismissed — and why it's back QLC stores 4 bits per cell (TLC stores 3), delivering higher density and lower unit cost at the expense of speed and endurance. That made it a natural fit for consumer SSDs and cold storage — but the AI era has changed the game. Larg...
最近的文章

SanDisk 攜手 Kioxia 發布 AI 專用第 9 代 QLC 快閃記憶體,AI 記憶體市場迎來「940 億美元重定價」?

一句話結論: AI 對記憶體的需求正從 HBM 擴散到快閃記憶體,SanDisk 與 Kioxia 發布的第 9 代 2Tb QLC 搭配全新 HBF 架構,可能改寫 NAND 在 AI 產業中的地位,也牽動整個 AI 硬體供應鏈的定價。 一條新聞,讓 SanDisk 單日大漲 5.73% 8 月 13 日,SanDisk 股價單日大漲 5.73%,導火線是它與 Kioxia 聯合發布專為 AI 基礎設施設計的第 9 代 2Tb QLC 3D 快閃記憶體。這不是一次普通的產品更新——產業分析指出,AI 記憶體市場正在經歷一輪高達 940 億美元的重定價,而過去被視為「慢速便宜貨」的 QLC,正是這輪重定價的主角之一。 QLC 為何過去被嫌慢,如今卻翻身? QLC 每個儲存單元存放 4 個位元(TLC 為 3 個),密度高、單位成本低,代價是速度與耐用度不如 TLC,過去主要用在消費級 SSD 與冷資料儲存。但 AI 時代改變了遊戲規則:大型語言模型的權重與 KV cache 動輒數百 GB 到數 TB,資料中心需要「容量大、讀取快、成本低」的記憶體層級,QLC 的劣勢反而變成優勢。 第 9 代技術採用 CBA(CMOS 直接鍵合陣列)架構,將 CMOS 電路與記憶體陣列分開製造後再鍵合,讓兩者可獨立演進。相比第 8 代 2Tb QLC,新產品改用 6 平面架構,寫入與讀取頻寬更高、電力效率改善,NAND 介面速度提升至 4.8Gb/s(增加 33%),大幅縮短與 TLC 的效能差距。 HBF:向 HBM 發起挑戰的新架構 比 QLC 本身更值得注意的,是 SanDisk 同步端出的 HBF(High Bandwidth Flash)架構。HBF 提供接近 HBM 的讀取頻寬,容量卻達 HBM 的 8 到 16 倍,目標鎖定記憶體密集的 AI 推論工作負載。SanDisk 與 SK hynix 已公布第一版開放 HBF 規格:單一 HBF stack 最高 512GB,一顆加速器配 8 組約 4TB,頻寬分為 0.4 到 3TB/s 三個等級。 SanDisk 技術長在投資人日展示的模擬更直觀:一張高階 GPU 原本配 192GB HBM,改用 HBF 後近端記憶體可拉至約 4TB。跑一個接近 490B 參數的代理型編碼...

McDonald's Pulled Its Shrimp Burgers One Day After Launch: Why 0.7 ppb of Nitrofuran Residue Shook Two Markets

Bottom line: McDonald's Taiwan launched its "Sea Flavor Shrimp Cutlet Burger" line on August 12, 2026 — and pulled it nationwide just one day later after internal sampling detected 0.7 ppb of nitrofuran metabolites in the imported shrimp cutlets. McDonald's Hong Kong, despite insisting its recipes and batches were different, also suspended sales as a precaution. One shrimp burger rippled across two markets, exposing the gap between food-safety standards in a global supply chain and the science behind banned veterinary drugs. A One-Day Menu Life: This Time It Was the Shrimp On August 12, McDonald's Taiwan officially launched the "Sea Flavor Shrimp Cutlet Burger" and "Sea Flavor Double-Layered Shrimp Cutlet Burger," a summer seafood push. The very next day (August 13), the company issued an emergency notice: the imported shrimp cutlets used in both burgers had tested positive for nitrofuran and its metabolites (synthetic antibiotics) at ...

麥當勞蝦堡開賣一天就下架:0.7 ppb 的硝基呋喃殘留,為什麼讓兩地市場同時緊張?

一句話結論: 台灣麥當勞 8 月 12 日開賣的「海味揚蝦堡」系列,僅一天後就因進口蝦排自主抽樣檢出硝基呋喃代謝物 0.7 ppb(百億分之七)而全面停售;同集團的香港麥當勞即使宣稱「配方批次不同」,也同步預防性下架——一塊蝦堡同時牽動兩個市場,背後是跨國供應鏈食安標準的落差與「禁用獸藥」的科學邏輯。 開賣一天就下架:這次出事的是蝦排 8 月 12 日,台灣麥當勞正式開賣「海味揚蝦堡」與「海味雙層揚蝦堡」,主打夏季海味新品的宣傳才剛鋪開,隔天(8 月 13 日)業者就緊急公告:兩款漢堡使用的 進口蝦排 ,在自主抽樣批次中檢出 硝基呋喃及其代謝物(人工合成抗生素)0.7 ppb ,不符合食品法規標準,即日起全台門市暫停販售。 值得注意的是幾個細節:供應商曾出具合格的檢驗文件;是麥當勞的自主抽樣複驗抓出了問題;而 0.7 ppb 這個數字,以現行檢測技術(液相層析串聯質譜,LC-MS/MS)而言並非「檢不出」的微量,而是明確落在違規區間。業者同時承諾,8 月 12 日已購買的消費者將獲得退款,機制預計一周內公布。 為什麼香港也跟著緊張? 事件迅速跨越市場邊界。香港麥當勞對外表示,港區蝦堡的配方與批次和台灣不同,但基於審慎原則,仍即時採取「預防性停售」,App 上的蝦堡系列一度下架——而香港食安中心早已把硝基呋喃類列為 禁用獸藥 。 同一品牌、兩地市場、兩種說法,卻做出同樣的停售決定。這正是跨國食品供應鏈最真實的寫照:原料來源、生產批次、當地法規與檢測標準各有不同,但消費者的信任是同一套帳。品牌一旦在某個市場出現食安疑慮,其他市場的「我們不一樣」往往不足以安撫人心,預防性下架反而成了最穩妥的公關與風險選擇。 硝基呋喃是什麼?為什麼各國把它列為禁用? 硝基呋喃(nitrofurans)是一類人工合成的廣效抗生素,曾廣泛用於治療畜禽與水產動物的細菌感染,代表藥物包括呋喃唑酮(furazolidone)、呋喃它酮(furaltadone)、呋喃西林(nitrofurazone)等。 問題在於兩點: 代謝物殘留 :這類藥物進入動物體內後代謝極快,但會與組織蛋白結合形成穩定的「結合殘留」,藥物原型很快就測不到,代謝物卻會長期存在於肉品中。 致癌與致突變疑慮 :動物實驗顯示硝基呋喃及其代謝物具有致癌性與基因毒性風險,因此歐盟自 1...

Perseid Meteor Shower Peaks Tonight: Why 2026 Is a Once-in-a-Decade Viewing Year

One-sentence takeaway: The 2026 Perseid meteor shower peaks on the night of August 12 into the early hours of August 13, with a zenithal hourly rate (ZHR) of up to 100 meteors per hour — and this year's near-new moon means almost zero moonlight interference, making it the best viewing conditions in years. Miss this night's hundred meteors and you'll wait another year. Every August, the night sky of the Northern Hemisphere hosts a reliable celestial fixture: the Perseid meteor shower. The 2026 edition is special. Its peak falls on the night of August 12 into the early morning of August 13, with rates up to 100 meteors per hour — and the Moon is nearly new that night, casting almost no light. Astronomy media are calling it the year's most worth-watching event. Why does "no Moon" matter so much? Because moonlight is the sky's biggest natural light pollutant: when the Moon is out, faint meteors are washed out entirely. When it's absent, faint meteors...

英仙座流星雨今晚極大期:為什麼今年是十年一遇的觀賞年?

一句話結論: 2026 年英仙座流星雨極大期落在 8 月 12 日深夜至 8 月 13 日凌晨,天頂每小時出現率(ZHR)上看 100 顆;今年恰逢新月、幾乎零月光干擾,是近年最理想的觀測條件——錯過這一晚的百顆流星,就要再等一年。 每年八月,北半球的夜空都會準時上演一場「流星接力賽」——英仙座流星雨(Perseids)。2026 年的這班車特別不一樣:極大期(peak)落在 8 月 12 日深夜到 8 月 13 日凌晨,時速上看每小時 100 顆,而且當晚月亮接近新月、幾乎不發光,天文媒體稱這是「年度最值得觀賞」的一次。為什麼「沒有月亮」如此關鍵?因為月光是夜空中最大的天然光害——月亮一出來,暗流星全部被淹沒;月亮缺席,暗流星才有機會現身。 一場四個天象同日的天文盛宴 今年的流星雨還搭上了「天文大滿貫」的順風車:8 月 12 日這一天,黎明前有六顆行星橫跨天際(木星、水星、火星、天王星、土星、海王星),黃昏時分格林蘭、冰島與西班牙北部迎來日全食,入夜後英仙座流星雨接棒登場。而讓夜空保持漆黑的新月,正是同日日全食的那顆月亮——同一個天象條件,串起了一整天的天文盛宴。 英仙座流星雨是怎麼來的? 英仙座流星雨的「母體」是 斯威夫特-塔特爾彗星(109P/Swift-Tuttle) ,一顆軌道週期約 133 年的週期彗星,上次回歸近日點是 1992 年,下次要等到 2126 年。但流星雨年年報到,秘密在於彗星留下的「殘骸帶」:彗星每次靠近太陽時,冰與塵埃被蒸發噴出,沿軌道鋪成一條綿延的碎片帶,地球每年 8 月都會準時穿越這條帶子,碎片以每秒約 59 公里的速度撞進大氣層、燃燒發光,就成了我們看到的流星。英仙座流星以速度飛快、常伴火流星(fireball)聞名,輻射點位於英仙座方向。 ZHR 100 是什麼意思?每小時真的看得到 100 顆嗎? ZHR(天頂每小時出現率)是流星雨強度的標準度量:假設輻射點在正頭頂、天空完全漆黑時,一個觀測者每小時能看到的流星數。它是「理想值」,實際數量會打折扣——輻射點高度、光害、雲量都會影響。在光害少的郊區,通常能看到理想值的五到七成;在市區,每小時可能只剩 20 顆左右。但今年「零月光」這張王牌,等於把所有人的起跑線都拉高了一截。 觀測指南:裸眼、躺椅、給眼睛 20 分鐘 觀測英仙...

EU AI Act Enters Enforcement Phase: Fines Are Live, but High-Risk Rules Pushed to 2027? What the AI Omnibus Really Changed

One-line takeaway: The EU AI Act entered its enforcement phase on August 2 — transparency obligations and fining powers took effect that day, while the AI Omnibus amendment pushed core high-risk AI obligations to December 2027; the "fines first, high-risk later" sequencing gives global companies a 16-month compliance runway. On August 2, 2026, the EU AI Act officially entered its enforcement phase. This is not just "another effective date" — it is the first time regulators actually hold fining power: the AI Office begins overseeing providers of general-purpose AI models, national authorities start enforcing in parallel, and any company violating transparency obligations can be fined from that day forward. Just as notably, the EU simultaneously let the AI Omnibus amendment take effect, adjusting deadlines for high-risk AI — the enforcement door is open, but the clock on high-risk obligations has been wound back. What Actually Went Live This Week? Article 50 T...