Menene Rigid Flex PCB Stackup

A cikin duniyar fasaha mai saurin tafiya a yau, na'urorin lantarki suna ƙara ci gaba da ƙarami. Don biyan buƙatun waɗannan na'urori na zamani, buƙatun allon da'ira (PCBs) suna ci gaba da haɓakawa da haɗa sabbin dabarun ƙira. Ɗaya daga cikin irin wannan fasaha shine m pcb stackup, wanda ke ba da fa'idodi da yawa dangane da sassauci da aminci.Wannan cikakken jagorar zai bincika menene tari na hukumar da'ira, fa'idodinsa, da gininsa.

Kafin nutsewa cikin cikakkun bayanai, bari mu fara fara bibiyar abubuwan yau da kullun na PCB:

PCB stackup yana nufin tsara nau'ikan allon kewayawa daban-daban a cikin PCB guda ɗaya. Ya ƙunshi haɗa abubuwa daban-daban don ƙirƙirar allon multilayer waɗanda ke ba da haɗin lantarki. A al'adance, tare da tari na PCB mai tsauri, ƙaƙƙarfan kayan kawai ake amfani da su ga dukkan allo. Koyaya, tare da gabatarwar kayan sassauƙa, sabon ra'ayi ya fito - tari PCB mai ƙarfi.

Don haka, menene ainihin laminate mai tsauri?

Tarin PCB mai ƙarfi-sauƙaƙƙi wani ƙaƙƙarfan allon kewayawa ne wanda ke haɗa kayan PCB masu ƙarfi da sassauƙa. Ya ƙunshi madaidaicin yadudduka masu ƙarfi da sassauƙa, ƙyale hukumar ta lanƙwasa ko lanƙwasa kamar yadda ake buƙata yayin da take riƙe amincin tsarinta da aikin lantarki. Wannan haɗe-haɗe na musamman yana sa tsattsauran ra'ayi na PCB ya dace don aikace-aikace inda sarari ke da mahimmanci kuma ana buƙatar lanƙwasawa mai ƙarfi, kamar su wearables, kayan aikin sararin samaniya, da na'urorin likitanci.

Yanzu, bari mu bincika fa'idodin zabar tari na PCB mai ƙarfi don kayan lantarki.

Na farko, sassaucinsa yana ba da damar hukumar ta shiga cikin matsatsun wurare kuma ta dace da sifofin da ba daidai ba, yana haɓaka sararin samaniya. Wannan sassauci kuma yana rage girman gaba ɗaya da nauyin na'urar ta hanyar kawar da buƙatar masu haɗawa da ƙarin wayoyi. Bugu da ƙari, rashin masu haɗin kai yana rage yuwuwar abubuwan gazawa, ƙara dogaro. Bugu da ƙari, raguwar wayoyi yana inganta amincin sigina kuma yana rage matsalolin tsoma baki (EMI).

Gina faifan PCB mai tsauri ya ƙunshi abubuwa masu mahimmanci da yawa:

Yakan ƙunshi yadudduka masu tsauri da yawa waɗanda ke haɗe da yadudduka masu sassauƙa. Adadin yadudduka ya dogara ne akan rikitarwa na ƙirar kewayawa da aikin da ake so. M yadudduka yawanci sun ƙunshi daidaitattun FR-4 ko laminates masu zafi mai zafi, yayin da sassauƙan yadudduka sune polyimide ko kayan sassauƙa iri ɗaya. Don tabbatar da ingantacciyar haɗin wutar lantarki tsakanin yadudduka masu ƙarfi da sassauƙa, ana amfani da nau'in manne na musamman da ake kira anisotropic conductive adhesive (ACA). Wannan manne yana ba da haɗin wutar lantarki da na inji, yana tabbatar da ingantaccen aiki.

Don fahimtar tsarin tararrakin PCB mai tsauri, ga rugujewar tsarin hukumar PCB mai ƙarfi-Layer 4-Layer:

Babban Layer:
Green solder abin rufe fuska Layer ne mai kariya da ake amfani da shi akan PCB (Printed Circuit Board)
Layer 1 (Labaran Sigina):
Base Copper Layer tare da Plated Copper burbushi.
Layer 2 (Layer Layer/Dielectric Layer):
FR4: Wannan abu ne na gama gari da ake amfani da shi a cikin PCBs, yana ba da tallafin injina da keɓewar lantarki.
Layer 3 (Flex Layer):
PP: Polypropylene (PP) m Layer na iya ba da kariya ga allon kewayawa
Layer 4 (Flex Layer):
Rufin Layer PI: Polyimide (PI) abu ne mai sassauƙa kuma mai jurewa zafi wanda aka yi amfani dashi azaman babban Layer na kariya a cikin sassauƙan ɓangaren PCB.
Rufin Layer AD: yana ba da kariya ga kayan da ke cikin ƙasa daga lalacewa ta wurin waje, sinadarai ko karce na jiki
Layer 5 (Flex Layer):
Tushen Copper Layer: Wani Layer na jan karfe, yawanci ana amfani da shi don alamun sigina ko rarraba wutar lantarki.
Layer 6 (Flex Layer):
PI: Polyimide (PI) abu ne mai sassauƙa kuma mai jurewa zafi wanda aka yi amfani da shi azaman tushe mai tushe a ɓangaren sassauƙa na PCB.
Layer 7 (Flex Layer):
Tushen Copper Layer: Har ila yau wani Layer na jan karfe, yawanci ana amfani da shi don alamun sigina ko rarraba wutar lantarki.
Layer 8 (Flex Layer):
PP: Polypropylene (PP) abu ne mai sassauƙa da aka yi amfani da shi a ɓangaren sassauƙa na PCB.
Cowerlayer AD: yana ba da kariya ga kayan da ke cikin ƙasa daga lalacewa ta wurin waje, sinadarai ko karce ta jiki
Rufin Layer PI: Polyimide (PI) abu ne mai sassauƙa kuma mai jurewa zafi wanda aka yi amfani dashi azaman babban Layer na kariya a cikin sassauƙan ɓangaren PCB.
Layer 9 (Labaran Ciki):
FR4: Wani Layer na FR4 an haɗa shi don ƙarin tallafin injina da keɓewar lantarki.
Darasi na 10 (Labarin ƙasa):
Base Copper Layer tare da Plated Copper burbushi.
Layer na ƙasa:
Green soldermask.

Lura cewa don ƙarin ingantacciyar ƙima da ƙayyadaddun la'akari da ƙira, ana ba da shawarar tuntuɓar mai tsara PCB ko masana'anta wanda zai iya ba da cikakken bincike da shawarwari dangane da takamaiman buƙatu da ƙuntatawa.

A takaice:

Tari mai jujjuyawar PCB shine ingantaccen bayani wanda ya haɗu da fa'idodin kayan PCB masu ƙarfi da sassauƙa. Sassaucinsa, ƙaƙƙarfan ƙarfi da amincinsa sun sa ya dace da aikace-aikace daban-daban waɗanda ke buƙatar haɓaka sararin samaniya da lankwasawa mai ƙarfi. Fahimtar mahimman abubuwan ɗimbin gyare-gyare masu tsattsauran ra'ayi da gininsu na iya taimaka muku yanke shawara mai zurfi lokacin ƙira da kera na'urorin lantarki. Yayin da fasaha ke ci gaba da samun ci gaba, buƙatun tara kayan PCB masu tsauri ba shakka za su ƙaru, tare da haɓaka haɓakawa a wannan fagen.