Kurinda Rigid-Flex PCB Gusiba: Ingamba zifatika zo kwemeza ubuziranenge no kwizerwa

Intangiriro

Muri iyi nyandiko ya blog, tuzaganira ku ngamba zifatika n’inganda nziza zo gukumira PCB ihindagurika, bityo turinde ibikoresho bya elegitoroniki bishobora kunanirwa.

Gusiba ni ikibazo gikomeye gikunze kwibasira imbaho ​​zumuzingo zanditseho (PCBs) mubuzima bwabo bwakazi. Ibi bintu bivuga gutandukanya ibice muri PCB, bikavamo guhuza intege nke hamwe nibishobora gutsindwa. Nkumushinga cyangwa uwashushanyije, ni ngombwa kumva impamvu zitera gusiba no gufata ingamba zo gukumira kugirango PCB yawe ihamye kandi yizewe.

I. Sobanukirwa no gusiba muri PCB ikomeye

Gusiba biterwa nimpamvu zitandukanye mugihe cyo gukora, guteranya, no gutunganya ibyiciro bya PCBs bigoye. Guhangayikishwa nubushyuhe, kwinjiza amazi no guhitamo ibikoresho bidakwiye nimpamvu zisanzwe zo gusiba. Kumenya no gusobanukirwa izi mpamvu ni ngombwa mugutegura ingamba zifatika zo gukumira.

1. Guhangayikishwa nubushyuhe: Coefficient yo kwagura ubushyuhe (CTE) kudahuza ibikoresho bitandukanye birashobora gutera guhangayika cyane mugihe cyamagare yubushyuhe, biganisha kuri delamination.Iyo PCB ihuye nubushyuhe, ibice byaguka kandi bikagabanuka kubiciro bitandukanye, bigatera impagarara mubucuti hagati yabo.

2. Kwinjiza neza: PCB ihindagurika cyane PCB ikunze guhura nubushuhe buhebuje kandi byoroshye gukuramo ubuhehere.Molekules zamazi zirashobora kwinjira mubibaho binyuze muri microcrack, ubusa, cyangwa gufungura nabi, bigatuma kwaguka kwaho, kubyimba, no kurangiza.

3. Guhitamo Ibikoresho: Gusuzumana ubwitonzi ibintu bifatika ni ngombwa kugirango wirinde gusiba.Nibyingenzi guhitamo uburyo bukwiye bwa laminate, ibifata hamwe nubutaka kugirango bitange amazi make kandi bihamye neza.

2. Ingamba zo gukumira gusiba

Noneho ko tumaze gusobanukirwa impamvu, reka dushakishe ingamba zingenzi zo gukumira PCB itoroshye:

1. Ibitekerezo bikwiye:
a) Kugabanya umubyimba wumuringa:Umubyimba mwinshi wumuringa utera guhangayika cyane mugihe cyamagare yubushyuhe. Kubwibyo, gukoresha byibuze umuringa usabwa byongera PCB guhinduka kandi bikagabanya ibyago byo gusiba.

b) Imiterere iringaniye:Haranira gukwirakwiza ibice byumuringa mubice bikomeye kandi byoroshye bya PCB. Kuringaniza neza bifasha kugumya kwagura ubushyuhe no kugabanuka, kugabanya ubushobozi bwo gusiba.

c) Ubworoherane bugenzurwa:Shyira mu bikorwa kwihanganira kugenzurwa ku bunini bw'umwobo, ukoresheje diameter n'ubugari bwa trike kugira ngo umenye neza ko imihangayiko mugihe cy'imihindagurikire yubushyuhe ikwirakwizwa muri PCB.

d) Kwuzuza no kuzuza:Fillets igabanya ingingo yibandaho, ifasha kugera kumurongo woroshye no kugabanya ubushobozi bwo gusiba.

2. Guhitamo ibikoresho:
a) Tg Laminates nyinshi:Hitamo laminates hamwe nubushyuhe bwo hejuru bwikirahure (Tg) kuko bitanga ubushyuhe bwiza, kugabanya CTE idahuye hagati yibikoresho, kandi ugabanye inzira yo gusiganwa ku magare yubushyuhe.

b) Ibikoresho bike bya CTE:Hitamo ibikoresho bifite agaciro gake CTE kugirango ugabanye ubushyuhe bwo kwagura ubushyuhe budahuye hagati yinzego zitandukanye, bityo ugabanye imihangayiko kandi utezimbere muri rusange kwizerwa rya PCBs.

c) Ibikoresho bitarimo ubuhehere:Hitamo ibikoresho bifite amazi make kugirango ugabanye ibyago byo gusibanganya bitewe no kwinjiza amazi. Tekereza gukoresha impuzu zihariye cyangwa kashe kugirango urinde uduce tworoshye twa PCB kutinjira.

3. Imyitozo ikomeye yo gukora:
a) Kugenzura Impedance:Shyira mubikorwa uburyo bwo gukora impedance igenzurwa kugirango ugabanye impinduka ziterwa na PCB mugihe gikora, bityo bigabanye ibyago byo gusezererwa.

b) Kubika neza no gufata neza:Bika kandi ukoreshe PCB mubidukikije bigenzurwa nubushuhe bugenzurwa kugirango wirinde kwinjiza amazi nibibazo bifitanye isano.

c) Kwipimisha no Kugenzura:Uburyo bukomeye bwo gupima no kugenzura burakorwa kugirango hamenyekane inenge zose zishobora gukorwa zishobora gutera delamination. Gushyira mubikorwa tekinike yo gupima idafite imbaraga nko gusiganwa ku magare, microsection, hamwe na scanning acoustic microscopi birashobora gufasha gutahura hakiri kare.

Umwanzuro

Kwirinda gusibanganya PCBs ikomeye-flex ningirakamaro kugirango barebe kuramba no gukora neza. Urashobora kugabanya ibyago byo gusibanganya wunvise ibitera kandi ugafata ingamba zikwiye mugihe cyo gushushanya, guhitamo ibikoresho, no gukora.Gushyira mubikorwa imicungire yubushyuhe ikwiye, ukoresheje ibikoresho bifite imitungo myiza, gukoresha uburyo bukomeye bwo gukora, no gukora ibizamini byuzuye birashobora kuzamura ubwiza nubwizerwe bwa PCBs ikomeye. Ukurikije izi ngamba kandi ugakomeza kugezwaho amakuru agezweho mu bikoresho no mu ikoranabuhanga mu nganda, urashobora kwemeza iterambere ryiza rya PCB ziramba kandi zizewe zigira uruhare mu gutuza no kuba inyangamugayo yibikoresho bya elegitoroniki.