Autoclave or Pressure Cooker Test (PCT)
Autoclave Test, or Pressure Cooker Test (PCT), or Pressure Pot Test (PPOT), is a reliability test performed to assess the ability of a product to withstand severe temperature and humidity conditions.
It is used primarily to accelerate corrosion in the metal parts of the product, including the metallization areas on the surface of the die. It also subjects the samples to the high vapor pressure generated inside the autoclave chamber. Figure 1 shows examples of autoclave chambers.
Fig. 1. Examples of Autoclave Chambers from Trio Tech |
Autoclave testing consists of soaking the samples for 168 hours at 121 deg C, ** RH, and 2 atm. Intermediate readpoints at 48H and 96H may also be employed.
Surface-mount samples are preconditioned prior to autoclave testing. Preconditioning simulates the board mounting process of the customer. It normally consists of a bake to drive away the moisture inside the packages of the samples, a soak to drive a controlled amount of moisture into the package, and three cycles of IR or vapor reflow.
The samples are tested after preconditioning, failures from which are considered as preconditioning failures and not autoclave failures. Preconditioning failures should be taken seriously, since these imply that the samples are not robust enough to even withstand the board mounting process.
Fig. 2. Another Example of an Autoclave Chamber |
Because of the extreme moisture condition during autoclave testing, moisture-related electrical leakage failures may be encountered after the test. Unless predefined to be so, such failures must not be considered as valid PCT failures. Only permanent failures, such as those arising from corrosion, are considered valid PCT failures.
Reliability Tests: Autoclave Test or PCT; Temperature Cycling; Thermal Shock;
THB; HAST; HTOL; LTOL; HTS; Solder Heat Resistance Test (SHRT);
Other Reliability Tests
See Also: Reliability Engineering; Reliability Modeling;
Qualification Process; Failure Analysis; Package Failures; Die Failures
詞條
詞條說明
宏展科技多臺高低溫試驗(yàn)設(shè)備交付廣州較飛科技股份有限公司
宏展科技多臺高低溫試驗(yàn)設(shè)備交付廣州較飛科技股份有限公司? 廣州較飛科技股份有限公司將無人機(jī)、機(jī)器人、自動駕駛、人工智能、物聯(lián)網(wǎng)等技術(shù)帶進(jìn)農(nóng)業(yè)生產(chǎn),通過構(gòu)建無人化智慧農(nóng)業(yè)生態(tài),讓農(nóng)業(yè)進(jìn)入自動化、精準(zhǔn)高效的?4.0?時(shí)代。較飛的使命提升**農(nóng)業(yè)生產(chǎn)效率較飛的愿景構(gòu)建一個(gè)滿足人類未來?100?年發(fā)展需求的農(nóng)業(yè)生態(tài)系統(tǒng)讓全世界的人們都能獲得充足、豐富和安全
*科技大學(xué)機(jī)電工程與自動化學(xué)院定購宏展可編程恒溫恒濕箱!
*科技大學(xué)機(jī)電工程與自動化學(xué)院定購宏展可編程恒溫恒濕箱!機(jī)電工程與自動化學(xué)院由原*科學(xué)技術(shù)大學(xué)自動控制系、機(jī)械電子工程與儀器系于1999年10月合并組建,下設(shè)自動控制系、儀器科學(xué)與技術(shù)系、機(jī)電工程系、機(jī)電工程研究所和自動化研究所。 在50多年的辦*程中,學(xué)院綜合辦學(xué)實(shí)力和水平有了很大提高,人才培養(yǎng)和科學(xué)研究工作**了豐碩的成果?,F(xiàn)有控制科學(xué)與工程上等學(xué)科國家學(xué)科和機(jī)械電子工程二級學(xué)科國家學(xué)科
北京大恒鼎芯科技有限公司珠海分公司選用宏展PL-408恒溫恒濕試驗(yàn)箱!
北京大恒鼎芯科技有限公司珠海分公司選用宏展PL-408恒溫恒濕試驗(yàn)箱!北京大恒鼎芯科技有限公司成立于2003年,注冊資本為1500萬元人民幣,上市公司大恒科技(600288)是其控股股東,是北京中關(guān)村的高技術(shù)企業(yè).公司辦公總部和國內(nèi)市場部在北京中關(guān)村,在廣東珠海設(shè)有開發(fā)和生產(chǎn)基地,在深圳設(shè)有面向國外的**業(yè)務(wù)部.公司主要開發(fā)和生產(chǎn)面向教育和娛樂的數(shù)碼電子產(chǎn)品.公司擁有多項(xiàng)磚利,獲得過信息產(chǎn)業(yè)部電子
高低溫試驗(yàn)箱致冷循環(huán)系統(tǒng)選用逆卡若循環(huán)系統(tǒng),該循環(huán)系統(tǒng)由2個(gè)等溫過程和2個(gè)絕熱過程構(gòu)成,其全過程給出:冷媒經(jīng)制冷壓縮機(jī)隔熱縮小到較高的工作壓力,耗費(fèi)了的輸出功率使排氣管溫度上升,以后冷媒經(jīng)冷卻器等溫地和周圍物質(zhì)開展熱交換器將發(fā)熱量發(fā)送給周圍物質(zhì)。后冷媒經(jīng)截留閥絕熱變形做功,這時(shí)候冷媒溫度減少。冷媒根據(jù)空調(diào)蒸發(fā)器等溫地從溫度較高的物塊放熱,使被水冷卻物塊溫度減少。此循環(huán)系統(tǒng)循環(huán)往復(fù)進(jìn)而**過減溫之目地
公司名: 廣東宏展科技有限公司
聯(lián)系人: 曾女士
電 話: 4006282786
手 機(jī): 18688888287
微 信: 18688888287
地 址: 廣東東莞常平 常平鎮(zhèn)Lab Companion Park
郵 編:
網(wǎng) 址: labcompanion.b2b168.com
公司名: 廣東宏展科技有限公司
聯(lián)系人: 曾女士
手 機(jī): 18688888287
電 話: 4006282786
地 址: 廣東東莞常平 常平鎮(zhèn)Lab Companion Park
郵 編:
網(wǎng) 址: labcompanion.b2b168.com
¥58800.00
冷熱沖擊測試設(shè)備 操作說明 冷熱沖擊試驗(yàn)箱銷售
¥205000.00
¥12800.00
¥35000.00