Peb feem ntau nug txog kev hloov pauv. Tau kawg, vim li cas lwm tus koj xav tau lub rooj tsavxwm "flex"?
"Lub flex board puas yuav tawg yog tias siv ED tooj liab rau nws?''
Hauv tsab xov xwm no peb xav tshawb xyuas ob yam khoom sib txawv (ED-Electrodeposited thiab RA-rolled-annealed) thiab saib xyuas lawv cov kev cuam tshuam rau kev ua haujlwm ntev. Txawm hais tias nkag siab zoo los ntawm kev lag luam flex, peb tsis tau txais cov lus tseem ceeb ntawd rau tus tsim qauv.
Cia wb mus saib ob hom ntawv ci no. Ntawm no yog qhov kev soj ntsuam ntawm RA Copper thiab ED Copper:
Flexibility nyob rau hauv cov tooj liab yog los ntawm ntau yam. Ntawm chav kawm, lub thinner yog tooj liab, qhov hloov tau yooj yim ntawm lub rooj tsavxwm. Ntxiv nrog rau qhov tuab (los yog nyias), tooj liab tseem cuam tshuam rau qhov yooj. Muaj ob hom tooj liab uas siv hauv PCB thiab flex Circuit Court lag luam: ED thiab RA raws li tau hais tseg.
Roll Anneal Copper Foil (RA tooj liab)
Rolled Annealed (RA) Copper tau siv dav hauv flex circuits manufacturing thiab nruj-flex PCB fabrication kev lag luam rau xyoo lawm.
Cov qauv nplej thiab du nto yog qhov zoo tagnrho rau kev siv hluav taws xob, hloov tau yooj yim circuitry. Lwm thaj chaw ntawm kev txaus siab nrog dov tooj liab hom muaj nyob rau hauv high-frequency signals thiab kev siv.
Nws tau raug pov thawj tias tooj liab nto roughness tuaj yeem cuam tshuam qhov kev nkag siab ntau zaus thiab qhov zoo nkauj ntawm tooj liab yog qhov zoo.
Electrolysis Deposition Copper Foil (ED tooj liab)
Nrog ED tooj liab, muaj ntau ntau yam ntawm foils hais txog nto roughness, kev kho mob, grain qauv, thiab lwm yam. Raws li ib tug general nqe lus, ED tooj liab muaj ib tug ntsug grain qauv. Tus qauv ED tooj liab feem ntau muaj qhov profile siab lossis qhov ntxhib zoo li piv rau Rolled Annealed (RA) Copper. ED tooj liab zoo li tsis muaj kev hloov pauv thiab tsis txhawb nqa lub teeb liab zoo.
EA tooj liab tsis haum rau cov kab me me thiab tsis zoo bending kuj yog li ntawd RA tooj liab yog siv rau saj zawg zog PCB.
Txawm li cas los xij, tsis muaj laj thawj ntshai ED tooj liab hauv kev siv dynamic.
Txawm li cas los xij, tsis muaj laj thawj ntshai ED tooj liab hauv kev siv dynamic. Ntawm qhov tsis sib xws, nws yog qhov kev xaiv de facto nyob rau hauv nyias, lub teeb yuag cov neeg siv daim ntawv thov uas yuav tsum tau lub voj voog siab. Qhov kev txhawj xeeb nkaus xwb yog kev tswj xyuas kom zoo ntawm qhov chaw peb siv "ntxiv" plating rau txheej txheem PTH. RA foil yog qhov kev xaiv tsuas yog muaj rau hnyav tooj liab hnyav (ntau tshaj 1 oz.) qhov twg hnyav dua tam sim no thiab dynamic flexing yuav tsum tau.
Txhawm rau kom nkag siab qhov zoo thiab qhov tsis zoo ntawm ob cov ntaub ntawv no, nws yog ib qho tseem ceeb kom nkag siab txog cov txiaj ntsig ntawm ob qho tib si tus nqi thiab kev ua haujlwm ntawm ob hom ntawv tooj liab thiab, ib yam li qhov tseem ceeb, dab tsi yog kev lag luam. Tus tsim qauv yuav tsum xav txog tsis yog dab tsi yuav ua haujlwm, tab sis seb nws puas tuaj yeem tau txais ntawm tus nqi uas yuav tsis thawb cov khoom kawg tawm ntawm kev ua lag luam pricewise.
Post lub sij hawm: May-22-2022