Ibikoresho bya firime iburyo bwa PCB byoroshye

Muri iyi nyandiko ya blog, tuzasesengura ibintu tugomba gusuzuma muguhitamo ibikoresho bya firime kuri PCB zoroshye kandi tugatanga ubushishozi bwingirakamaro bugufasha gufata icyemezo kiboneye.

Mu myaka yashize,PCB zoroshye. Izi mbaho ​​zoroshye zikoreshwa cyane mu nganda zitandukanye, zirimo imodoka, ibikoresho bya elegitoroniki, ibikoresho byubuvuzi n’ikirere. Ikintu cyingenzi cyo gushushanya PCB zoroshye ni uguhitamo ibikoresho bya firime kugirango ubone imikorere isabwa kandi yizewe.

1. Guhinduka no kunama:

PCB ihindagurika izwiho guhinduka nubushobozi bwo kunama. Kubwibyo, ibikoresho bya firime yoroheje bikoreshwa mukubaka imizunguruko bigomba kuba byoroshye guhinduka. Ikintu gikunze gukoreshwa ni firime ya polyimide (PI). Polyimide ifite imiterere yubukorikori nziza cyane nkimbaraga zingana, imbaraga zumuriro mwiza hamwe nubushakashatsi bwiza bwimiti, bigatuma biba byiza PCB yoroheje. Mubyongeyeho, firime ya kristu ya polymer (LCP) nayo irazwi cyane kubera guhinduka kwiza no guhagarara neza.

2. Dielectric ihoraho nigihombo:

Dielectric ihoraho kandi ikwirakwiza ibintu bya firime bigira uruhare runini mukumenya imikorere ya PCB yoroheje. Iyi mitungo itanga ubushishozi mubushobozi bwibikoresho byo kohereza ibimenyetso byamashanyarazi nta gihombo gikomeye. Indangagaciro ya dielectric ihoraho kandi ikwirakwiza ibintu nibyiza nibyiza kubikorwa byinshi kuko bigabanya gutakaza ibimenyetso kandi byemeza imikorere yizewe. Bimwe mubisanzwe bikoreshwa bya dielectric bihoraho ibikoresho bya firime ni polyimide na LCP.

3. Guhagarara k'ubushyuhe no kurwanya ubushyuhe:

PCB ihindagurika ikunze guhura nubushyuhe bwubushyuhe, cyane cyane mubikorwa byimodoka nindege. Kubwibyo, guhitamo ibikoresho bya firime hamwe nubushyuhe buhebuje bwumuriro no guhangana ningirakamaro kugirango tumenye neza kandi byizewe. Filime yubushyuhe bwo hejuru ya polyimide, nka Kapton®, ikoreshwa cyane mubikorwa bya PCB byoroshye bitewe nubushobozi bwabo bwo guhangana nubushyuhe bukabije mugihe gikomeza ubusugire bwimiterere. LCP, kurundi ruhande, ifite ubushyuhe busa kandi burashobora gufatwa nkubundi buryo.

4. Guhuza imiti:

Ibikoresho bito bya firime bikoreshwa muri PCB byoroshye bigomba guhuza imiti nibidukikije byihariye byoherejwemo. Mugihe cyo guterana no gutunganya PCB, hagomba gutekerezwa guhura nibintu nkibishishwa, isuku, na fluxes. Polyimide ifite imiti irwanya imiti kandi niyo ihitamo ryambere kubikorwa bya PCB byoroshye.

5. Guhuza ibifatika:

Ibikoresho bito bya firime akenshi byomekwa kumutwe kugirango bigire imiterere ikomeye muri PCB zoroshye. Kubwibyo, ni ngombwa guhitamo ibikoresho bya firime bihujwe na sisitemu yahisemo. Ibikoresho bigomba guhuza neza nibifatika kugirango byemeze ubumwe bukomeye kandi bigumane ubusugire bwa PCB bworoshye. Mbere yo kurangiza ibikoresho bya firime, birasabwa ko sisitemu yihariye ifatika igeragezwa kugirango ihuze kugirango habeho guhuza kwizewe.

6. Kuboneka nigiciro:

Hanyuma, ibikoresho bya firime kuboneka nigiciro nabyo bigomba kwitabwaho muguhitamo. Mugihe polyimide iboneka henshi kandi ihendutse, ibindi bikoresho nka LCP birashobora kuba bihenze cyane. Gusuzuma ibyifuzo byumushinga, imbogamizi zingengo yimari, hamwe nisoko ryaboneka bizafasha kumenya ibikoresho bya firime nziza kubishushanyo bya PCB byoroshye.

Muncamake, guhitamo ibikoresho bya firime bikwiye kuri PCB yawe yoroheje ningirakamaro kugirango umenye neza imikorere, kwizerwa no kuramba.Ibintu nko guhinduka no kugoreka, guhora kwa dielectric no gutakaza igihombo, ituze ryumuriro no kurwanya, guhuza imiti, guhuza imiti, hamwe no kuboneka hamwe nigiciro bigomba gusuzumwa neza mugihe cyo gutoranya. Urebye izi ngingo no gukora ubushakashatsi bwimbitse, urashobora gufata icyemezo cyuzuye kizagushikana kuri PCB yateguwe neza, yujuje ubuziranenge bworoshye PCB kubisabwa byihariye.