Re: [討論] HTC 如果出 新一 WP8 板 板友會有興趣嗎?
看板WindowsPhone作者breadf ( Lifting Turn )時間11年前 (2013/03/26 11:52)推噓10(10推 0噓 44→)留言54則, 12人參與討論串2/7 (看更多)
: → azman:他應該沒有辦法做好停產五年後仍有維修備用料件吧 03/26 09:00
: → azman:每款都搞特規 他的物料管理是完全扔給中下游嗎? 03/26 09:01
其實電子料也是有保存期限的,就跟食品一樣
可能不少人知道晶片上面會打印datecode,哪一年的第幾周
系統廠在把IC打到板子上之前也要先注意是否有過期
一般低階的DDR或flash業界保存期限是一年~一年半
如果IC真空包裝已開啟的話能放的時間更短,會有氧化問題
手機用的我不太清楚
過期的產品通常就是拋棄
即使是拿來用也是試產或實驗性質,拿過期貨來量產還蠻沒良心的
所以保修的東西用的應該也會是元件廠端新出廠的料
除非...真的這麼黑心XD
而IC廠原材料EOL是常有的事情
尤其這幾年製程進步很快速,即使是低階的DDR可能半年~一年就更新一次製程
舊款的EOL系統廠就不得不導入新款,要做2nd source驗證過關之後才能採用
回到開頭的話題,停產五年後的維修備用料應該也要是新的
那如果原材料廠不生產了怎麼辦?
第一種就是找2nd source,第二種就是跟你講沒料修了
即使去市場上找到舊款料也會是放很久的
當然用通用料的東西元件廠可能會生產比較久,就比較沒這問題
不過我覺得五年還是太困難了,想想五年來半導體製程改了多少XD
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