Ihiganwa rya PCB

Hamwe no kuzamura ibicuruzwa byabakiriya, bigenda bitera imbere buhoro buhoro mu cyerekezo cyubwenge, bityo rero ibisabwa kubuyobozi bwa PCB bugenda burushaho gukomera, ibyo bikaba binateza imbere gukura kwiterambere rya tekinoroji yubushakashatsi.
Ni ubuhe buryo buranga inzitizi?

1. Kurwanya biterwa no guhinduranya amashanyarazi mubice bigize isano na capacitance na inductance. Iyo hari ibimenyetso bya elegitoronike byerekana imiyoboro iyobora, kurwanya yakira byitwa impedance.

2. Kurwanya ni ukurwanya guterwa numuyoboro utaziguye ku bice, bifitanye isano na voltage, irwanya nubu.

Gushyira mu bikorwa Ibiranga Impedance

1. birashobora kugerwaho. Byuzuye, byizewe, byukuri, nta mpungenge, nta rusaku rwerekana.

2. Ingano ya impedance ntishobora kumvikana gusa. Ninini nini cyangwa ntoya nibyiza, urufunguzo ruhuye.

Kugenzura ibipimo biranga inzitizi

Urupapuro rwa dielectric ruhoraho rwurupapuro, ubunini bwurwego rwa dielectric, ubugari bwumurongo, uburebure bwumuringa, nubunini bwa mask yagurishijwe.

Ingaruka no kugenzura mask yabagurisha

1. Ubunini bwa mask yagurishijwe ntacyo bugira kuri impedance. Iyo umubyimba wa masike yagurishijwe wiyongereyeho 10um, agaciro ka impedance gahinduka na 1-2 oms gusa.

2. Mu gishushanyo, itandukaniro riri hagati ya mask yo kugurisha igifuniko na mask yo kugurisha idapfundikirwa ni nini, iherezo rimwe rya oms 2-3, hamwe na 8-10 itandukanye.

3. Mu gukora ikibaho cya impedance, ubunini bwa mask yagurishijwe mubisanzwe bigenzurwa ukurikije ibisabwa byumusaruro.

Ikizamini cya Impedance

Uburyo bwibanze nuburyo bwa TDR (igihe cyagenwe cyerekana). Ihame shingiro nuko igikoresho gisohora ibimenyetso bya pulse, bigasubizwa inyuma binyuze mu kizamini cyikibaho cyumuzunguruko kugirango bapime impinduka zagaciro karanga impedance yibintu byangiza no gusubira inyuma. Nyuma yo gusesengura mudasobwa, ibiranga impedance irasohoka.

Gukemura ibibazo

1. Kubipimo byo kugenzura inzitizi, ibisabwa kugenzura birashobora kugerwaho muguhinduranya mubikorwa.

2. Nyuma yo kumurika mu musaruro, ikibaho cyaciwe kandi kirasesengurwa. Niba ubunini bwikigereranyo bwagabanutse, ubugari bwumurongo burashobora kugabanuka kugirango byuzuze ibisabwa; niba ari muremure cyane, umuringa urashobora kubyimba kugirango ugabanye agaciro ka impedance.

3.Mu kizamini, niba hari itandukaniro rinini hagati yigitekerezo nukuri, ibishoboka byose nuko hariho ikibazo kijyanye nigishushanyo mbonera hamwe nigishushanyo mbonera cyibizamini.