M'mapangidwe a bolodi la PCB, mapangidwe odana ndi ESD a PCB angapezeke mwa kusanjikiza, masanjidwe oyenera ndi mawaya ndi kuyika. Pakupanga mapangidwe, zosintha zambiri zamapangidwe zitha kukhala zongowonjezera kapena kuchotsa zigawo potengera kulosera. Posintha masanjidwe a PCB ndi ma waya, ESD ikhoza kupewedwa bwino.

Okhazikika PCB magetsi kuchokera thupi la munthu, chilengedwe ndi ngakhale mkati zipangizo zamagetsi PCB bolodi adzawononga zosiyanasiyana mwatsatanetsatane semiconductor Chip, monga kulowa woonda kutchinjiriza wosanjikiza mkati chigawo chimodzi; Kuwonongeka kwa chipata cha MOSFET ndi CMOS zigawo; CMOS PCB kukopera choyambitsa loko; PN mphambano ndi yochepa dera reverse kukondera; Bolodi lamakope a PCB afupifupi kuti athetse mphambano ya PN; Tsamba la PCB limasungunula waya wogulitsira kapena waya wa aluminiyamu mu gawo la pepala la PCB la chipangizo chogwira ntchito. Kuti muchepetse kusokoneza kwa electrostatic discharge (ESD) ndikuwonongeka kwa zida zamagetsi, ndikofunikira kutenga njira zingapo zaukadaulo kuti mupewe.

M'mapangidwe a bolodi la PCB, mapangidwe odana ndi ESD a PCB angapezeke mwa kusanjikiza ndi masanjidwe oyenera a waya wa PCB board ndikuyika. Pakupanga mapangidwe, zosintha zambiri zamapangidwe zitha kukhala zongowonjezera kapena kuchotsa zigawo potengera kulosera. Pakusintha masanjidwe a PCB ndi mayendedwe, bolodi yokopera ya PCB itha kutetezedwa ku PCB kukopera bolodi ESD. Nazi njira zina zodzitetezera.

Gwiritsani ntchito zigawo zambiri za PCB momwe mungathere, poyerekeza ndi PCB ya mbali ziwiri, ndege yapansi ndi ndege yamagetsi, komanso malo otsetsereka a mzere wapansi amatha kuchepetsa kusokonezeka kwamtundu wamba ndi kugwirizana kochititsa chidwi, kuti athe kufika 1. / 10 mpaka 1/100 ya PCB yokhala ndi mbali ziwiri. Yesani kuyika chizindikiro chilichonse pafupi ndi gawo la mphamvu kapena pansi. Kwa ma PCBS okwera kwambiri omwe ali ndi zigawo pamwamba ndi pansi, ali ndi mizere yochepa kwambiri yolumikizira ndi malo ambiri odzaza, mungaganizire kugwiritsa ntchito mzere wamkati. Kwa PCBS yokhala ndi mbali ziwiri, magetsi olumikizana mwamphamvu ndi gridi yapansi amagwiritsidwa ntchito. Chingwe champhamvu chili pafupi ndi pansi, pakati pa mizere yowongoka ndi yopingasa kapena malo odzaza, kuti agwirizane momwe angathere. Mbali imodzi ya gululi PCB pepala kukula ndi zosakwana kapena wofanana 60mm, ngati n'kotheka, gululi kukula ayenera kukhala zosakwana 13mm.

Onetsetsani kuti pepala lililonse la PCB lozungulira ndilofanana momwe mungathere.

Ikani zolumikizira zonse pambali momwe mungathere.

Ngati ndi kotheka, yambitsani chingwe champhamvu cha PCB kuchokera pakati pa khadi komanso kutali ndi madera omwe amatha kuwongolera ESD.

Pazigawo zonse za PCB pansi pa zolumikizira zotuluka mu chassis (omwe amatha kuwongolera kuwonongeka kwa ESD pa bolodi la PCB), ikani chassis kapena poligoni modzaza pansi ndikuzilumikiza ndi mabowo pafupipafupi pafupifupi 13mm.

Ikani mabowo omangirira mapepala a PCB m'mphepete mwa khadi, ndikulumikiza mapepala apamwamba ndi apansi a PCB pepala losatsekeka mozungulira maenje okwera pansi pa galimotoyo.

Mukamasonkhanitsa PCB, musagwiritse ntchito solder iliyonse pamwamba kapena pansi pa pepala la PCB. Gwiritsani ntchito zomangira zomangidwira ma PCB mapepala ochapira kuti mulumikizane mwamphamvu pakati pa pepala/chishango cha PCB mubokosi lachitsulo kapena chothandizira pansi.

"Dera lodzipatula" lomwelo liyenera kukhazikitsidwa pakati pa chassis pansi ndi malo ozungulira gawo lililonse; Ngati n'kotheka, sungani mipata pa 0.64mm.

Pamwamba ndi pansi pa khadi pafupi ndi mabowo a PCB kukopera bolodi, gwirizanitsani galimotoyo ndi nthaka yozungulira pamodzi ndi mawaya a 1.27mm m'mphepete mwa waya wapansi pa 100mm iliyonse. Pafupi ndi malo olumikizira awa, ma solder kapena mabowo oyikapo amayikidwa pakati pa chassis pansi ndi pepala la PCB la dera. Malumikizidwe apansi awa amatha kutsegulidwa ndi tsamba kuti azikhala otseguka, kapena kulumpha ndi mkanda wa maginito / ma frequency capacitor.

Ngati bolodi dera sadzaikidwa mu nkhani zitsulo kapena PCB pepala chishango chipangizo, musagwiritse ntchito solder kukana pamwamba ndi pansi mlandu mawaya pansi wa bolodi dera, kuti angagwiritsidwe ntchito ngati maelekitirodi ESD arc kumaliseche.

Kukhazikitsa mphete kuzungulira dera mumzere wotsatira wa PCB:

(1) Kuphatikiza pa m'mphepete mwa chipangizo chokopera cha PCB ndi chassis, ikani njira ya mphete kuzungulira gawo lonse lakunja.
(2)Onetsetsani kuti zigawo zonse zikupitilira 2.5mm m'lifupi.
(3) Lumikizani mphetezo ndi mabowo 13mm iliyonse.
(4) Lumikizani malo a mphete ku malo omwe anthu ambiri amakopera ma PCB.
(5) Pamapepala a PCB a mbali ziwiri omwe amaikidwa m'mipanda yachitsulo kapena zipangizo zotchinga, malo ozungulira ayenera kulumikizidwa ndi malo omwe amagwiritsidwa ntchito. Dera losatetezedwa lokhala ndi mbali ziwiri liyenera kulumikizidwa ku nthaka ya mphete, nthaka ya mpheteyo sungavekedwe ndi kukana kwa solder, kuti mpheteyo ikhale ngati ndodo yotulutsa ESD, ndipo osachepera 0.5mm wide gap imayikidwa pamalo ena. udindo pa nthaka mphete (zigawo zonse), amene angapewe PCB kukopera bolodi kupanga lupu lalikulu. Mtunda pakati pa mawaya azizindikiro ndi malo a mphete sayenera kuchepera 0.5mm.