标准资料网-标准资料免费资源平台

【英文标准名称】:Surfacemountingtechnology-Environmentalandendurancetestmethodsforsurfacemountsolderjoint-Cyclicbendingtest
【原文标准名称】:表面安装技术.表面安装焊点的环境忍受力试验方法.周期性挠曲试验
【标准号】:BSEN62137-1-4-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-03-31
【实施或试行日期】:2009-03-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:合金;弯曲试验;弯曲试验;温度变化;元部件;组件;连续性试验;周期的;定义;耐久性;定义(术语);分立器件;耐久性;电气工程;电子工程;电子设备及元件;耐久试验;强度测试;环境试验;环境测试;扁平接触表面;集成电路;寿命;材料测试;材料试验;机械性能;印制电路;印制电路板;可靠性;可靠度;半导体器件;表面安装设备;软钎焊连接;焊接点;焊接;钎焊;表面安装;表面安装装置;试验;测试;痕量元素分析;测试条件;试验条件
【英文主题词】:Alloys;Bendtesting;Bendingtests;Changesoftemperature;Components;Continuitytests;Cyclic;Definitions;Discretedevices;Durability;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Endurancetesting;Environmentaltesting;Flatcontactsurfaces;Integratedcircuits;Life(durability);Materialstesting;Mechanicalproperties;Printedcircuits;Printed-circuitboards;Reliability;Semiconductordevices;SMD;Solderedjoints;Solderingpoints;Solderings;Surfacemounting;Surfacemountingdevices;Testing;Testingconditions
【摘要】:ThetestmethoddescribedinthispartofIEC62137appliestosurfacemountcomponentswithathinandwidebasalplane,suchasQFPandBGA.Thistestmethodevaluatestheenduranceofthesolderjointsbetweencomponentleadsandlandsonasubstratebycyclicbendingofsubstrate.Thistestalsoevaluatestheeffectsofrepeatedmechanicalstress,suchaskeypushingincellphones,thestrengthofthesolderjointbetweencomponentterminalsandlandsonasubstrate.Inthistestmethod,theevaluationrequiresfirsttomountthesurfacemountcomponentonthesubstratebyreflowsoldering,thencyclicallybendthesubstratetoacertaindegreeofdepthuntilfractureofthesolderjointsoccurs.Thepropertiesofthesolderjoints(e.g,solderalloy,substrate,mounteddeviceordesign,etc.)areevaluatedtoassistinimprovingthestrengthofthesolderjoints.
【中国标准分类号】:L10
【国际标准分类号】:31_190
【页数】:18P.;A4
【正文语种】:英语


【英文标准名称】:Drainageoflandfills-Design,constructionandoperation
【原文标准名称】:垃圾填埋排放设备.设计,建造和运营
【标准号】:DIN19667-2009
【标准状态】:现行
【国别】:德国
【发布日期】:2009-10
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Constructions;Definitions;Design;Dimensioning;Dimensions;Drainage;Drainagelayers;Drainages;Hydraulics;Infiltrationlines;Operation;Planning;Pollutioncontrol;Siphons;Specification(approval);Tipping(waste);Wastedisposal;Wastedisposalengineering;Wastedumps;Waterpractice;Waterprotection
【摘要】:
【中国标准分类号】:J88
【国际标准分类号】:13_030_40
【页数】:12P.;A4
【正文语种】:德语