Ziziphi izinto ezisetyenziswayo kwiibhodi ezilukhuni-flex?

Olunye uhlobo lwebhodi yesekethe oluye luthandeka ngakumbi kwishishini le-elektroniki yiibhodi eqinile-flex.

Xa kufikwa kwizixhobo zombane ezinjengee-smartphones kunye neelaptops, ukusebenza kwangaphakathi kubaluleke kakhulu njengesitayile sangaphandle. Amacandelo okwenza ezi zixhobo zisebenze zihlala zifihliwe phantsi kweebhodi zebhodi yesekethe ukuqinisekisa ukusebenza kwazo kunye nokuqina. Kodwa zeziphi izinto ezisetyenziswa kwezi bhodi zesekethe ezintsha?

I-PCB eguquguqukayo eqinileidibanisa iingenelo zeebhodi zeesekethe eziqinileyo kunye neziguquguqukayo, ukubonelela ngesisombululo esisodwa sezixhobo ezifuna ukudibanisa amandla omatshini kunye nokuguquguquka. Ezi bhodi ziluncedo ngokukhethekileyo kwizicelo ezibandakanya uyilo olunzima-ntathu okanye izixhobo ezifuna ukusongwa rhoqo okanye ukugoba.

Makhe sijonge ngakumbi kwizinto eziqhelekileyo ezisetyenziswa kulwakhiwo lwePCB elukhuni:

1. I-FR-4: I-FR-4 yi-flame-retardant glass-reinforced epoxy laminate material esetyenziswa kakhulu kwi-electronics industry. Yeyona nto isetyenziswa kakhulu kwi-substrate imathiriyeli kwii-PCB eziguquguqukayo. I-FR-4 ineempawu ezigqwesileyo zokufakelwa kombane kunye namandla afanelekileyo omatshini, okwenza ukuba ilungele iinxalenye eziqinileyo zeebhodi zesekethe.

2. I-Polyimide: I-Polyimide i-polymer ephezulu yokushisa ehlala isetyenziswa njenge-flexible substrate material kwiibhodi eziqinileyo. Inozinzo oluhle kakhulu lwe-thermal, iipropati zokufakelwa kombane kunye nokuguquguquka komatshini, okuvumela ukuba umelane nokugoba ngokuphindaphindiweyo kunye nokugoba ngaphandle kokuphazamisa ingqibelelo yebhodi yesiphaluka.

3. Ubhedu: I-Copper iyona nto iphambili yokuqhuba kwiibhodi eziqinileyo. Isetyenziselwa ukwenza i-conductive traces kunye ne-interconnections evumela ukuba umbane ujikeleze phakathi kwamacandelo kwibhodi yesekethe. I-Copper ikhethwa ngenxa ye-conductivity ephezulu, i-solderability efanelekileyo kunye neendleko-zokusebenza.

4. I-Adhesive: I-Adhesive isetyenziselwa ukudibanisa iileya eziqinileyo kunye neziguquguqukayo ze-PCB kunye. Kubalulekile ukukhetha i-adhesive enokumelana noxinzelelo lwe-thermal kunye noomatshini abadibana nayo ngexesha lenkqubo yokuvelisa kunye nobomi bezixhobo. I-Thermoset adhesives, ezifana ne-epoxy resins, zidla ngokusetyenziswa kwii-PCB eziguquguqukayo eziqinileyo ngenxa yeempawu zazo ezibalaseleyo zokudibanisa kunye nokumelana nobushushu obuphezulu.

5. I-Coverlay: I-Coverlay yinqanaba lokukhusela elisetyenziselwa ukugubungela inxalenye eguquguqukayo yebhodi yesiphaluka. Ngokuqhelekileyo yenziwe nge-polyimide okanye imathiriyeli efanayo ebhetyebhetye kwaye isetyenziselwa ukukhusela umkhondo obuthathaka kunye nezinto ezivela kwizinto zokusingqongileyo ezifana nokufuma nothuli.

6. Imaski yesolder: Imaski yesolder ngumaleko okhuselayo oqatywe kwindawo eyomeleleyo yePCB. Inceda ukuthintela ibhulorho ye-solder kunye neebhulukhwe ezimfutshane zombane ngelixa ikwabonelela ngokugquma kunye nokhuseleko lomhlwa.

Ezi zixhobo eziphambili ezisetyenziswa kulwakhiwo lwe-PCB oluguquguqukayo.Nangona kunjalo, kuyafaneleka ukuba uqaphele ukuba izinto ezithile kunye neempawu zazo zingahluka ngokuxhomekeke kwisicelo sebhodi kunye nokusebenza okufunwayo. Abavelisi bahlala belungelelanisa izinto ezisetyenziswa kwiiPCB eziguquguqukayo ukuze zihlangabezane neemfuno ezithile zesixhobo abasetyenziswa kuso.

Isishwankathelo,ii-PCB eziguquguqukayo ezilukhuni ziyinto entsha ephawulekayo kwishishini le-elektroniki, enikezela indibaniselwano ekhethekileyo yamandla oomatshini kunye nokuguquguquka. Izinto ezisetyenziswayo ezifana ne-FR-4, i-polyimide, i-copper, i-adhesives, ii-overlays, kunye ne-solder masks zonke zidlala indima ebalulekileyo ekusebenzeni kunye nokuqina kwezi bhodi. Ngokuqonda izinto ezisetyenziswa kwii-PCBs eziguquguqukayo, abavelisi kunye nabayili banokudala umgangatho ophezulu, izixhobo zombane ezithembekileyo ezihlangabezana neemfuno zehlabathi lanamhlanje eliqhutywa bubuchwephesha.