台G AMD ZEN 2良率突破85% - 3C
By Brianna
at 2019-07-10T01:35
at 2019-07-10T01:35
Table of Contents
大家一波香完了吼,來聊良率的問題
: 推 WARgame723 : 提升良率還不如提升頻率 07/06 19:25
說得很好,所以牙膏廠10nm到今天還在提升頻率
6G超起來
: → friedpig : 不過這Size才85% Navi 250良率應該還很糟 07/06 20:01
其實不能直接推
就算是統稱7nm,根據設計不同,在製程上要考量跟精進的點會天差地別
以工程的角度來說都會分開來看
有時候甚至會出現兩個不同device,差不多面積,良率天差地別的狀況
要用面積去推算良率真的是很rough
另外提醒一點就是,直接看輪班星出貨的良率通常是看爽的
除非是在輪班星切好包成chip直接給客戶
不然如果有走OSAT,還是要看最終電測的結果
目前出貨中的娜美CP落在70~75%之間,你能想像半年前初期驗證批的CP只有40%嗎
輪班星是直接拉了一倍,沒有在跟你客氣玩+++的
以過去經驗,這個良率水準對天宮來說大約在持平到小賺之間
但顯然這次天宮有底氣多了,已經有N10 revision在線上驗證
要再進一步拉良率
想到當年織女接機的慘況,只能說差超多der
:
: https://i.imgur.com/EJesEjK.jpg
: ※ 編輯: moss18 (114.24.134.215 臺灣), 07/06/2019 20:03:43
: → friedpig : 我用網路上計算機亂點的 這size 85% navi 10才60% 07/06 20:03
: ※ 編輯: moss18 (114.24.134.215 臺灣), 07/06/2019 20:04:39
: → friedpig : 雖然應該不是這樣算 做等固態的大大打臉 07/06 20:04
: 推 c52chungyuny: 幹咧 GG毛利60% 怎麼可能賺那麼少 07/06 20:05
哈囉 陽明大學的在校生你好
輪班星人的毛利不是這樣算的歐
以前段來說,客戶都是決定下多少片wafer(ex. 300mm 1萬片)
然後簽約講好一個可以出貨的良率
輪班星人在出貨規格內出了100片,他就能跟客戶拿100片的錢
不管這100片良率是100%還是85%還是60%
當然客戶覺得良率偏低可以靠邀,不過那都是事後額外在談的
阿對了你洗乾淨了沒阿
: → WARgame723 : 更正 GF的14nm,intel的14nm先進很多 07/06 23:31
之前GF還有在幫Q做基頻的時候,良率是一路暴打牙膏廠的XMM(95%up vs. ~80%)
不知道齁,講給你聞臭一下
--
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