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http://www.careyholzman.com/ 的文章
Low-ESR Aluminum Electrolytic Failures Linked to Taiwanese Raw Material Problems
1. Reportedly, the problem developed after a materials scientist working for Rubycon Corporation in Japan left the company and began working for Luminous Town Electric in China.
某位在 Jap Rubycon 工作的材料科學家, 跳槽到 Chn Luminous Town Electric 工作.
2. The scientist then developed a copy of Rubycon P-50 type water-based electrolyte, used in low-ESR aluminum electrolytic capacitors developed by Luminous and equivalent to the Rubycon ZA and ZL series.
這位科學家發展了一套等同於 Rubycon 的 P-50 水性電解液配方, 應用於Luminous 本身的 low-ESR 鋁質電解電容器, Luminous 這系列鋁質電解電容相當於Rubycon 的 ZA and ZL系列鋁質電解電容.
3. Subsequently, the scientist's staff members defected with the formula, and began to sell and electrolyte at a low price to many of the major aluminum electrolytic houses in Taiwan, including Luxon Electronics, Lelon Electronics, and other aluminum capacitor manufacturers. (IBM has stated that five companies were affected, while other sources in Taiwan suggest that as many as 11 companies were affected.)
後來這位科學家的手下職員帶著這份新配方跳槽, 並以低價銷售這份新配方給台灣許多主要的鋁質電解電容製造廠商. 包括了 Luxon Electronics, Lelon Electronics 還有其他的主要製造廠商都買了這份配方 (IBM 說有五家廠商受到影響, 不過根據台灣的消息來源指出可能多達11家廠商受到波及)
4. Unfortunately, the staff members who defected from Luminous Town Electric with the formula copied only the partial formula, and the subsequent electrolyte produced was unstable when packaged in a finished aluminum capacitor. The instability of the electrolyte in the low-ESR aluminum electrolytic capacitors using this water-based electrolyte leads to the build-up of excess hydrogen inside the aluminum can, which results in either a rupture of the can itself or destruction of the rubber end-seal.
不幸的, 從 Luminous Town Electric 跳槽的職員只拿到部分的配方, 隨後生產的水性電解液在鋁質電解電容內不能穩定操作. 會逐漸被電解並累積過量的氫氣在鋁質電解電容內. 結果是鋁殼爆裂或是橡膠封墊承受不了壓力而爆開.
5. Either failure is potentially catastrophic due to the leaking electrolyte. According to top material scientists in the aluminum capacitor industry, if the correct amount of additives is not mixed into a water-based electrolyte, electrolysis will occur, releasing a high amount of hydrogen gas in the can and resulting in catastrophic failure.
以上兩種失效最後都會造成電解液流失. 根據在鋁質電解電容業界工作的頂尖的科學家事後評論, 如果電解液沒有加入適當份量的添加劑將造成水被電解, 最後當然是導致災難性的失敗(悲劇收場).
6. Subsequent lifetime tests on low-ESR aluminum electrolytic capacitors produced in Taiwan by Japanese aluminum capacitor hours revealed the occurrence of catastrophic failure of the Taiwanese aluminum electrolytic capacitors after 2000 hours of operation on parts rated for 4000 hours of operation. Intel has stated that the aluminum capacitors with the poor electrolyte may fail after only 250 hours of operation.
日本廠商測試了台製鋁質電解電容, 發現了原來應該有 4000 小時(110C 高溫加速老化測試) 的壽命掉到只剩 2000 小時(110C 高溫加速老化測試). Intel 宣稱部分劣質台製鋁質電解電容在 250 小時(110C 高溫加速老化測試)後就失效.