Flex Circuit Fabrication: Dab tsi yog cov khoom siv siv hauv?

Flexible circuits, tseem hu ua flexible printed circuit boards (PCBs), yog cov khoom tseem ceeb ntawm ntau yam khoom siv hluav taws xob niaj hnub no.Lawv qhov yooj yim tso cai rau lawv hloov mus rau cov duab sib txawv thiab qhov ntau thiab tsawg, ua rau lawv zoo tagnrho rau cov ntawv thov uas xav tau qee qhov kev khoov lossis khoov.Fabrication ntawm flex circuits muaj ob peb kauj ruam, nrog rau xaiv cov khoom tsim nyog.Hauv tsab ntawv tshaj tawm no, peb yuav tshawb nrhiav cov ntaub ntawv siv hauv flex circuit fabrication thiab lub luag haujlwm lawv ua kom ntseeg tau tias cov kav ntev thiab kev ua haujlwm ntawm cov circuits no.

Ib qho ntawm cov khoom siv tseem ceeb siv hauv kev tsim hluav taws xob flex yog polyimide.Polyimide yog cov khoom siv yas siab kub uas muaj peev xwm tiv taus qhov chaw hnyav.Nws muaj cov thermal stability zoo heev thiab hluav taws xob insulating zog, ua rau nws tsim nyog rau kev siv nyob rau hauv cov kev hloov pauv uas yuav raug cuam tshuam rau qhov kub thiab txias.Polyimide feem ntau yog siv los ua cov khoom siv hauv paus lossis substrate rau kev hloov pauv hloov pauv.

Lwm cov khoom siv feem ntau siv hauv flex circuit manufacturing yog tooj liab.Tooj liab yog ib qho zoo heev conductor ntawm hluav taws xob, ua rau nws zoo tagnrho rau kev xa hluav taws xob teeb liab hauv flex circuits.Nws feem ntau yog laminated rau polyimide substrate los tsim cov kab hluav taws xob lossis xaim ntawm lub voj voog.Copper foil los yog nyias cov ntawv tooj liab feem ntau yog siv rau hauv cov txheej txheem tsim khoom.Lub thickness ntawm txheej tooj liab tuaj yeem sib txawv raws li kev thov tshwj xeeb.

Cov ntaub ntawv nplaum kuj tseem ceeb heev hauv kev tsim flex Circuit Court.Adhesives yog siv los khi cov txheej txheem sib txawv ntawm lub voj voog flex ua ke, kom ntseeg tau tias lub voj voog nyob ruaj khov thiab hloov tau.Ob qho khoom siv nplaum siv hauv kev tsim hluav taws xob flex Circuit Court yog acrylic-based adhesives thiab epoxy-based adhesives.Acrylic-raws li adhesives muab kev yooj yim, thaum epoxy-raws li adhesives yog nruj thiab ruaj khov.

Ntxiv nrog rau cov ntaub ntawv no, cov ntaub ntawv npog lossis cov ntaub npog ntsej muag yog siv los tiv thaiv cov kab hluav taws xob ntawm lub flex Circuit Court.Overlay cov ntaub ntawv feem ntau yog ua los ntawm polyimide los yog kua photoimaging solder mask (LPI).Lawv raug siv rau cov kab hluav taws xob los muab cov rwb thaiv tsev thiab tiv thaiv lawv ntawm ib puag ncig xws li ya raws, plua plav thiab tshuaj lom neeg.Cov txheej npog kuj tseem pab tiv thaiv luv luv Circuit Court thiab txhim kho tag nrho kev ntseeg siab ntawm flex circuit.

Lwm cov khoom siv feem ntau siv hauv flex circuit manufacturing yog tav.Ribs feem ntau yog ua los ntawm FR-4, nplaim taws retardant fiberglass epoxy khoom.Lawv tau siv los txhawb qee qhov chaw ntawm lub voj voog flex uas xav tau kev txhawb nqa ntxiv lossis kev nruj.Ribs tuaj yeem muab ntxiv rau hauv thaj chaw uas cov khoom sib txuas lossis cov khoom sib txuas los muab lub zog ntxiv thiab ruaj khov rau hauv Circuit Court.

Ntxiv nrog rau cov ntaub ntawv tseem ceeb no, lwm yam khoom siv xws li cov khoom siv, cov txheej txheem tiv thaiv, thiab cov ntaub ntawv insulating tuaj yeem siv thaum lub sij hawm tsim flex Circuit Court.Txhua yam ntawm cov ntaub ntawv no ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev ua tau zoo, ua haujlwm ntev thiab kev ntseeg siab ntawm cov khoom siv hloov pauv hauv ntau yam kev siv.

Hauv cov ntsiab lus, cov khoom siv feem ntau siv hauv flex circuit fabrication muaj xws li polyimide ua lub substrate, tooj liab raws li cov kab hluav taws xob, cov khoom siv nplaum rau kev sib txuas, npog txheej rau rwb thaiv tsev thiab kev tiv thaiv, thiab tav rau kev txhawb nqa.Txhua yam ntawm cov ntaub ntawv no ua haujlwm rau lub hom phiaj tshwj xeeb thiab ua ke txhim kho kev ua haujlwm thiab kev ntseeg siab ntawm flex circuits.Kev nkag siab thiab xaiv cov ntaub ntawv raug yog qhov tseem ceeb rau kev tsim cov khoom siv hluav taws xob hloov tau zoo uas ua tau raws li cov kev cai nruj ntawm cov khoom siv hluav taws xob niaj hnub no.