25
2019-09 |
Summary of crystal oscillator and ma
1.Matchingcapacitance----loadcapacitancereferstothecapacitancerequiredfornormaloscillationofcrystaloscillator.Generally,theexternalcapacitanceistomaketheequivalentcapacitanceatbothendsofcrystaloscillatorequaltoorclosetotheloadcapacitance.Inthecaseofhighdem... |
23
2019-09 |
Application of semiconductor refrige
Semiconductorrefrigerationtechnologyiswidelyusedinthecurrentrefrigerationtechnology.Inthegrowthofcropsingreenhouse,semiconductorrefrigerationtechnologycaneffectivelycontroltheenvironmenttemperature,especiallyforsomeplantswithhighrequirementsfortheenvironme... |
23
2019-09 |
Preparation of semiconductor
Themanufacturingprocessofchipcanbedividedintomanysteps,suchassandrawmaterial(quartz),siliconingot,wafer,photolithography,etching,ionimplantation,metaldeposition,metallayer,interconnection,wafertestingandcutting,corepackaging,leveltesting,packaging,etc.,and... |
22
2019-09 |
Semiconductor classification and per
(1)elementsemiconductor.Elementsemiconductorreferstothesemiconductorcomposedofasingleelement,amongwhichtheresearchonsiliconandtinisrelativelyearly.Itisasolidmaterialwithsemiconductorcharacteristicscomposedofthesameelements,whichiseasilyaffectedbytraceimpur... |
20
2019-09 |
Definition of semiconductor
Semiconductorreferstothematerialwithconductivitybetweenconductorandinsulatoratroomtemperature.Semiconductorsarewidelyusedinconsumerelectronics,communicationsystems,medicalinstrumentsandotherfields.Forexample,diodesaredevicesmadeofsemiconductors.Nomatterfro... |
|
