Guddiga circuit daabacay: description, naqshada

The guddiga circuit ku daabacan waa element a dhismaha oo ay ku jiraan saldhig oo naxaas ah kirishbooyada dielectric, kuwaas oo loo shubo on substrate ah ee foomka of qaybaha metallized. Waxay bixisaa xarunta ah ee xubno circuit electronic.

guddiga circuit wuxuu leeyahay tiro ka mid ah faa'iidooyinka la rakibo bulk (taaba) isticmaalaya fiilooyinka iyo fiilooyin marka loo eego:

• sii kordhaya High cufnaanta qaybaha raadiyaha iyo xeryahooda ay, taasoo keentay in xajmiga iyo miisaanka si weyn u dhimay,
• qaata kirishbooyada iyo gaashaamashada sagxadaha, iyo xubno ka radioactive in hal wareeg farsamada;
• xasiloonida, repeatability sifooyinka sida capacitance, conductance, inductance;
• xawaaraha sare iyo difaac qaylada circuitry;
• caabiga saamayn farsamo iyo cimilada,
• jaango'an iyo mideynta xal tiknoolaji iyo design,
• kiniisadaha oo isku halaynta, unugyo iyo qalabka oo dhan;
• processability hagaagay iyada oo sababtu tahay qalabaynta adag ee hawlaha shirka, hawlaha gacanta iyo sixitaanka,
• xoojinta shaqada hooseeyo, isticmaalka iyo kharashka wax.

The guddiga circuit ku daabacan sidoo kale waxay leedahay cillado, laakiin waxay yihiin qayb ilaa xad ah: koobnayn maintainability iyo kakanaanta sare oo ku daray isbedel design.

Waxyaalaha aasaaska ah ee kaararka sida waxaa ka mid ah saldhig dielectric, daahan macdan ah, taas oo ah qaab ah kirishbooyada daabacan, pads xiriir; qamaar iyo kordhaya godad.

Shuruudaha khuseeya wax soo saarka, kuwaas oo GOST

• guddiga circuit daabacay leeyihiin waa midab dhqaalaha on substrate ah dielectric in ay mabda'a in qaab-dhismeedka, oo aanay ku kiishka gudaha, saxanka, inclusions shisheeye, dildilaac, chips, xidhmo. Si kastaba ha ahaatee ogol yahay xagashada hal, inclusions biraha, ka saarida raad neprotravlennogo qayb hal iyo qaab dhismeedka taas oo aysan waxba ka beddelin soo koobin korontada ee alaabta, ma yareeyo masaafada u ogolyahay u dhexeeya xubno ka ah hannaanka.
• Jaantuska - cad, ku laayeen a siman, ma finan, dildilaac, hoolmay, qalab raad. Wasaqda yar maxaliga ah, laakiin aan ka badnayn shan dhibcood halkii decimeter square, la proviso in inta kale ee width wadada u dhigma doonaa in la oggol ugu yar; crack dhererka lix milimitir oo qoto dheer ah 25 microns.

Si loo hagaajiyo waxqabadka daxalka iyo hagaajin dusha guddiga solderability dahaarka by Halabuurka electrolytic taas oo noqon waa in si joogto ah, oo aan ka hoolmay, nasashada iyo podgarov. Qamaar iyo godad sii kordhaya waa in la takhalusin iyada oo la raacayo sawirka. Ogol yahay in ay leeyihiin lacag fasalka sax leexasho ku qeexan ah. Si loo hagaajiyo isku halaynta of kabida, dhammaan meelaha hoose oo godad kordhaya buufiyaa lakabka copper, kuwaas oo dhumucdiisuna waa in ay ka yar tahay 25 microns. Nidaamkan waxaa loo yaqaan - metallization godadkii.

Waa maxay fasalada PCB? Under fikradda waxa ay tilmaamaysaa loox circuit saarka fasalada sax, waxay waxaa bixiya GOST 23751-86. Iyada oo ku xidhan cufnaanta hannaankii guddiga circuit ku daabacan uu leeyahay shan fasal oo ah sax, doorashada, wixii la goostay by qalabka farsamo ee heer ganacsi ah. Fasalada koowaad iyo labaad ma u baahan yihiin qalab sax iyo waxaa loo arkaa raqiis ah in ay soo saaraan. The fasalada afraad iyo shanaad u baahan yihiin qalab gaar ah, qalab gaar ah, nadaafad kaamil goobaha wax soo saarka, qaboojiyaha, ay gacanta ku heerkulka. shirkadaha Domestic mass saara loox wareeg daabacan ee fasalka saddexaad oo sax.