對於全美汽車工人聯合會(United Auto Workers, 簡稱UAW)來說,
但對罷工的工廠工人來說合理的事情,
對於全美汽車工人聯合會(United Auto Workers, 簡稱UAW)來說,
但對罷工的工廠工人來說合理的事情,
有關華為新手機,講一個大家可能有興趣知道,半導體製程的微知識XD
👉來自中國網民:華為5G新手機有容易當機、發燙等問題
中國因為缺乏先進製程機台EUV,華為5G晶片,是中芯用DUV重複曝光做出來的。(台積電現在都是用更先進的EUV在做10奈米以下)
很多人可能都知道,因為重複曝光,會影響良率、拉高成本、降低產能。
但很多人可能不知道,這樣的製程,還存在一個嚴重問題,就是:
🔥低良率下產出的合格晶片,品質可能會有信賴度(reliability)不佳的問題!🔥
所以Foundry晶圓廠都會跟客戶簽約承諾,一旦良率低過某個水準,整批晶圓作廢,由晶圓廠自行吸收,不會跟客戶收錢。
正常來說,如果是中芯幫華為做7奈米,良率不到50%、甚至更低,這樣的情況,在台灣應該會整批作廢,不會讓客戶拿去用。
當然,因為台灣Foundry都能維持良率,所以,幾乎很少聽到晶圓整批作廢的情況。
低良率的晶片,信賴度容易出問題,這或許可以解釋,為什麼中國華為新手機傳出許多狀況(暖暖包功能XD ⋯
📌Hashtag 愈來愈長請包容
#繼續疲勞轟炸直到解除警報
#郭董要跟大野狼簽兩岸和平宣言
#柯文哲侯友宜都說要重啟服貿
#不要忘記教父柯里昂的警告
#誰說要重啟服貿
#誰說要簽和平協議
#誰就是叛徒
。。。。
由於中國企業不再有機會獲得製造半導體的最先進機器,他們開發了新的變通辦法,使用舊機器製造更強大的晶片。但這些方法對於製造商來說既相對耗時,又會產生較高比例的缺陷晶片,限制了生產規模。
The release of a homegrown Chinese smartphone during a visit by the Biden official in charge of regulating such technology shows the U.S.-China tech conflict is alive and well.
By ANA SWANSON
| ||
| ||
|
|
| |||
|
September 11, 2023 |
BREAKING NEWS
Mark J. Terrill/Associated Press |
The C.D.C. will meet Tuesday to consider guidelines on the vaccine campaign for the fall and winter season, when infections usually tick upward.FDA批准新的新冠疫苗
美國疾病控制與預防中心 (CDC)將於週二開會,考慮秋季和冬季疫苗接種活動的指導方針,而秋季和冬季感染率通常會上升。
...As the first vaccine’s potency waned with newer Omicron variants, a bivalent booster was approved in August 2022 that targeted the initial virus and BA.5, which was dominant at the time. That shot led to fewer people with Covid being hospitalized, dropping over several months to 25 percent from 60 percent.
隨著第一種疫苗的效力隨著新的 Omicron 變體而減弱,一種二價加強疫苗於 2022 年 8 月獲得批准,針對最初的病毒和當時占主導地位的 BA.5。那次注射導致住院的新冠肺炎患者人數減少,幾個月內住院人數從 60% 下降至 25%。
The latest mRNA vaccines by Pfizer and Moderna is called a monovalent because it was aimed at one variant of Omicron, XBB.1.5., and unlike earlier boosters does not include protection against the original virus that caused widespread infections in China more than three years ago. But experts and researchers say that it should provide protection against many of Omicron’s variants.
輝瑞和Moderna 最新的mRNA 疫苗被稱為單價疫苗,因為它針對的是Omicron 的一種變種XBB.1.5。與早期的加強疫苗不同,它不包括針對三年多前在中國引起廣泛感染的原始病毒的保護作用。但專家和研究人員表示,它應該可以針對 Omicron 的許多變體提供保護。
威爾康奈爾醫學院病毒學和免疫學教授約翰·摩爾表示,他對最新結果並不滿意。他說,新疫苗顯示出與去年秋天的加強劑類似的免疫反應。這意味著儘管新值得購買,但“它根本不像遊戲規則的改變者。”匹茲堡大學藥物安全專家瓦利德·蓋拉德博士說,聯邦官員還需要考慮是否向健康的美國年輕人推薦注射疫苗。
監管機構還在考慮是否授權 Novavax 提供加強劑量,該公司的冠狀病毒疫苗採用了不同但廣泛使用的技術。這種疫苗可能會在未來幾週內獲得批准,讓一些可能更喜歡 Novavax 配方的美國人作為 Moderna 和輝瑞 BioNTech 提供的疫苗的替代品。
Covid Tests: At-home tests are a critical tool to keep yourself and others safe. Here are answers to a few common questions.
Masks: Is it time to wear a mask again? Experts offer a refresher on where, when and how to use them.
Boosters: A new formulation of the Covid vaccine is coming this fall, and there are two main reasons to wait for it.
Fall Vaccines: This year, Americans will be asked to roll up their sleeves not just for Covid shots, but for new inoculations against the flu and R.S.V. Here’s what to know.
Heart Health: Can Covid damage your heart? Here’s a look at the short- and long-term risks.
Lung Damage: We analyzed hundreds of millions of data points from Covid patients’ scans to reconstruct their lungs in 3-D. This is the resulting visualization.