1. Mbere yo gusudira, shyira flux kuri padi no kuyifata ukoresheje ibyuma byo kugurisha kugirango wirinde gukonja kubera nabi cyangwa ibitagenda neza, bigatera ingorane zo kugurisha. Mubisanzwe, chip ntabwo ikeneye kuvurwa.

2. Koresha tweezers kugirango ushireho chip ya PQFP ku kibaho cya PCB, witondere kutangiza pin. Guhuza hamwe na padi no kumenya neza ko chip ishyirwa muburyo bukwiye. Hindura ubushyuhe bwicyuma cyo kugurisha iminsikuro zirenga 300, winjire hejuru yicyuma gifite amapine make, hanyuma ukandemo uduce duto twa diagonal kuri chip n'umucuruzi. Nyuma yo kugurisha ibinyuranye, ukemure umwanya wa chip kugirango uhuze. Nibiba ngombwa, birashobora guhinduka cyangwa gukurwaho no kongera guhuzwa ku kibaho cya PCB.

3. Iyo utangiye kugurisha amapine yose, ongeraho umugurisha hejuru yicyuma hanyuma akajyanwa amapine yose hamwe na flux kugirango amapine akomeze. Kora ku isonga ryumugurisha kugeza kumpera ya buri pin kuri chip kugeza ubonye umugurisha atemba muri pin. Iyo usudigure, ukomeze isonga ryumugurisha usa na pin ugana kugirango wirinde guhuzagurika kubera ukugurisha gukabije.

4. Nyuma yo kugurisha amapine yose, shyira amapine yose hamwe na flux kugirango usukure umugurisha. Ihanagura umusirikare urenze aho bikenewe kugirango ukureho ikabutura no hejuru. Hanyuma, koresha tweezers kugirango urebe niba hari abagurisha ibinyoma. Nyuma yo kugenzura irangiye, ikureho flux kuva mukarere kakarere. Shira urujijo rutoroshye mu nzoga kandi uhanagure witonze ku cyerekezo cy'imikino kugeza igihe flux ibura.

5. SMD zo kurwanya ubushobozi-bworoshye biroroshye kumugurisha. Urashobora kubanza gushira amabati hamwe, hanyuma ushireho iherezo ryibigize, koresha tweezers kugirango ushireho ibice, hanyuma ukoreshe ibigurisha, hanyuma ukemure niba ushyizwe neza; Niba bihujwe, gusudira urundi ruhande.

Kubijyanye n'imiterere, iyo ubunini bw'uko cightrouit ari nini cyane, nubwo urusaku rworoshye kugenzura, imirongo yacapwe izaba ndende, impemuzi iziyongera, ubushobozi bwo kurwanya urusaku buzagabanuka, kandi ikiguzi kiziyongera; Niba ari nto cyane, gutandukana k'ubushyuhe bizagabanuka, gusudira bizagora kugenzura, kandi imirongo yegeranye izitagaragara byoroshye. Kwivanga, nko kwivanga kw'ibibaho bivuye ku kibaho cy'abazunguruko. Kubwibyo, igishushanyo cya PCB kigomba kuba cyiza:

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. Ibigize ikirere byumva bigomba kuba kure yubushyuhe.

. Inama yumuzunguruko yagenewe kuba 4: 3 urukiramende (rwiza). Ntugire impinduka zitunguranye mubugari bwinsire kugirango wirinde inzitizi. Iyo ikigo cyumuzunguruko gishyushye kuva kera, umuringa wuzuye umuringa biroroshye kwaguka no kugwa. Kubwibyo, gukoresha ibice binini byumuringa bigomba kwirindwa.