Kurushanwa PCB

Hamwe no kuzamura ibicuruzwa byabakiriya, bigenda bitera imbere buhoro buhoro mu cyerekezo cyubwenge, bityo rero ibisabwa kubuyobozi bwa PCB bigenda birushaho gukomera, ibyo bikaba binateza imbere gukura kwikoranabuhanga rya tekinoroji.
Ni ubuhe buryo bwo kubangamira?

1. Kurwanya biterwa no guhinduranya amashanyarazi mubigize bifitanye isano na capacitance na inductance.Iyo hari ibimenyetso bya elegitoronike byoherejwe mu kiyobora, kurwanya yakira byitwa impedance.

2. Kurwanya ni ukurwanya guterwa numuyoboro utaziguye kubice, bifitanye isano na voltage, resistance na current.

Gushyira mu bikorwa Ibiranga Impedance

1. Ibikoresho byamashanyarazi bitangwa ninama yanditse byashyizwe mubikorwa byihuta byihuta kandi byihuta cyane bigomba kuba kuburyo ntagishobora kugaragara mugihe cyo kohereza ibimenyetso, ibimenyetso bikomeza kuba byiza, igihombo cyoherejwe kiragabanuka, ningaruka zihuye birashobora kugerwaho.Byuzuye, byizewe, byukuri, nta mpungenge, nta rusaku rwerekana.

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

Kugenzura ibipimo biranga inzitizi

Dielectric ihoraho yurupapuro, ubunini bwurwego rwa dielectric, ubugari bwumurongo, uburebure bwumuringa, nubunini bwa mask yagurishijwe.

Ingaruka no kugenzura mask yabagurisha

1. Ubunini bwa mask yo kugurisha 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 yo kugurisha ibicuruzwa bitwikiriye na mask yo kugurisha idapfundikira ni binini, birangirana na 2-3 oms, hamwe na 8-10.

3. Mugukora ikibaho cya impedance, ubunini bwa mask yagurishijwe mubisanzwe bigenzurwa ukurikije ibisabwa.

Ikizamini cya Impedance

Uburyo bwibanze nuburyo bwa TDR (igihe domaine yerekana).Ihame shingiro ni uko igikoresho gisohora ibimenyetso bya pulse, bigasubizwa inyuma binyuze mu kizamini cyibizamini byumuzunguruko kugirango bipime impinduka mubiranga impedance iranga imyuka ihumanya.Nyuma yo gusesengura mudasobwa, ibiranga impedance irasohoka.

Gukemura ibibazo

1. Kubintu byo kugenzura ibipimo, ibisabwa kugenzura birashobora kugerwaho muguhinduranya mubikorwa.

2. Nyuma yo kumurika mubikorwa, ikibaho gikataguwe kandi kigasesengurwa.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, ikintu kinini gishoboka nuko habaho ikibazo cyubwubatsi nigishushanyo mbonera cyibizamini.