BT PCB: Chishandiso, Zvivakwa, & Zvinhu zvinokanganisa

Munzvimbo yemagetsi, acronym BT inomirira bismaleimide triazine, komboni yakaita nhanho huru muindasitiri yekurongedza chip. Iyi ndima inonyanya kukosha munzvimbo yePrinted Circuit Board (PCB) gungano, uko zvinhu zvakashongedzwa zvinoumba musana wemabhodhi edunhu. Kazhinji, laminates aya anosanganisira akaiswa uye akaomeswa egirazi fiber jira rakatsikirirwa pane chip substrate. Nekudaro, kuiswa kweiyo thermal-hardened bismaleimide triazine (BT) resin zvinhu yave shanduko yemutambo. Ichipa zvivakwa zvemagetsi nezvinopisa zvakasarudzika pamutengo wakaderera, chinyorwa ichi chave nemhedzisiro yakakura pakuvandudzwa kwemidziyo yemagetsi uye tekinoroji yeruzivo.

Kunzwisisa BT PCB

A BT PCB, kana Bismaleimide Triazine Printed Circuit Board, imhando yebhodhi redunhu rakadhindwa rinoshandisa bismaleimide triazine resin mukuvakwa kwayo. Iri resin rinonyanya musanganiswa we epoxy resin uye BT resin, ari musanganiswa we bismaleimide uye cyanate ester. Inozivikanwa neayo akasimba ekutanga mamorekuru chimiro, BT resin inozvirumbidza yakanakisa magetsi zvivakwa uye yakakwirira kupisa kupisa, kumisikidza mitsva mitsva yepamusoro-inoshanda semiconductors. Iko kudhura-kushanda kweBT laminate kunoita kuti ive inoyevedza sarudzo yekurongedza chip, ichibatsira zvakanyanya mukufambira mberi kwetekinoroji mumidziyo yemagetsi.

Pamberi pekuunzwa kweBT laminate, machipisi epamusoro-soro aiwanzo kuputirwa achishandisa anodhura ceramic laminates. Nekudaro, kuunzwa kweBT resin mune chip kurongedza muna 1985 kwakashandura indasitiri. Hunhu hwayo hwemagetsi neanopisa, pamwe chete nekuchengetedza mari, zvakakonzera kugamuchirwa kwayo kwakapararira muJapan nepasirese. Nhasi, BT resin inoramba iri sarudzo yakakurumbira yekurongedza chip, ichipa chiyero chekuita uye kugona.

Zvishandiso zveBT PCB

Midziyo yemagetsi ine zvikamu zvemagetsi zvinotsamira pamachipisi emakombuta, ichityaira vagadziri kuti vagare vachitsvaga nzira dzekuita kuti zvigadzirwa zvavo zvireruke, zvidiki, uye zvakanyanya kuoma. Uku kudhiraivha kwekuvandudza kunoonekwa muma smartphones, ayo anoramba achishanduka nemhando imwe neimwe nyowani, ichiva nesimba, yakareruka, uye yakawanda-siyana.

Vagadziri veChip vari kusimudzirawo tekinoroji yavo kuti isangane nezvido zvevagadziri vemidziyo yekuwedzera kushanda. Izvi zvinosanganisira kuisa zvimwe zvikamu muchip kuti midziyo ireruke uye inoshanda zvakanyanya. Kuti izvi zviitike, vagadziri vari kushandisa zvinhu zvakatsiga zvinobvumira kuderedzwa kwepakati pakati pematanho, nekutsvaga nzvimbo inodzikira kubva pamusoro pe100 microns kusvika pasi pemakumi maviri microns.

Chimwe chezvinetso zvikuru mukugadzirwa kwePCB kuchengetedza bhodhi rakasimba pasi pekuchinja kwekupisa. MaPCB anofambiswa nenzira dzakasiyana-siyana dzinosanganisira mamiriro ekunze anotonhora nekupisa, zvichida zvinhu zvinogona kuchengetedza chimiro chazvo uye mashandiro azvo. BT resin inobudirira panyaya iyi, zvichiita kuti ive yakakodzera machipisi mumidziyo yemagetsi yemazuva ano.

Ndeipi basa reBT muPCB?

Bismaleimide Triazine (BT) inobata basa rakawanda mukuvaka nekuita kwePCBs. Mabasa ayo ekutanga anosanganisira kushanda se substrate yedunhu, kuchengetedza redunhu kubva kune zvakatipoteredza pesvedzero, uye kupa mechanical rutsigiro rwezvikamu. Beyond PCBs, BT inowana maapplication mumagetsi kurongedza, anonamira, macomposites, potting uye encapsulation makomponi, redunhu bhodhi laminates, coating zvinhu, uye magetsi ekudzivirira.

Sechinhu chinodzivirira muPCBs, BT inoita sechipingamupinyi kudzivirira zvikabudura zvemagetsi pakati pematanho ekuitisa kana kudzivirira zvinhu zvinonzwisisika zvemagetsi kubva pakukanganiswa kwemagetsi (EMI). Kushandiswa kwayo kunogona kukwidziridza kusimba kwemakanika kwePCB, kuve nechokwadi chekuvimbika uye hupenyu hurefu hwedunhu. Pamusoro pezvo, kugadzikana kwekupisa kweBT kunobatsira mukupisa kwese kwePCBs, kunyanya mumashandisirwo uko kupisa kupisa kwakakosha.

Muchidimbu, kushandiswa kwakasiyana-siyana kweBT uye zvinhu zvakasiyana-siyana zvinoita kuti ive chikamu chakakosha mukugadzirwa kwePCB yemazuva ano, zvichiita kuti kuve nekugadzirwa kwepamusoro-soro uye yakavimbika michina yemagetsi.BT PCB resin ine zvakawanda zvakanaka zvakadai sepamusoro Tg, kupisa kwepamusoro, kupikisa unyoro, pasi dielectric. nguva dzose (DK) uye yakaderera dissipation factor (DF). 

Chii chinonzi BT substrates?

Bismaleimide Triazine (BT) substrates zvinhu zvine hunyanzvi zvinoshandiswa mukugadzira zvigadzirwa zvemagetsi, zvinozivikanwa nekunaka kwazvo kwekupisa nemagetsi. Aya ma substrates anowanzo kuumbwa neBT polymers, ane akati wandei akakurumbira marudzi anosanganisira BT Epoxy, BT Polyimide, uye BT Resin.

1. BT Epoxy: BT Epoxy substrates inogadzirwa kubva kune epoxy resin base. Iwo akakosheswa nekusarudzika kwawo kwekudziya kwekushisa uye maitiro emagetsi ekudzivirira. Aya ma substrates akanakira maapplication anoda kushanda kwepamusoro munzvimbo dzakaoma.
2. BT Polyimide: BT Polyimide substrates inovakwa kubva kune polyimide resin base. Inozivikanwa nekushanduka-shanduka uye kuramba kumakemikari, BT Polyimide substrates inowanzoshandiswa mumashandisirwo anoda kusimba uye kuvimbika.
3. BT Resin: BT Resin substrates inogadzirwa kubva kune resinous zvinhu. Ivo vanoremekedzwa zvakanyanya nekuda kwekupokana kwavo kupisa uye murazvo, zvichiita kuti ive yakakodzera kune maapplication uko kusingatarisirwe kwekupisa kwakakosha.

Aya ma-BT substrates anoita basa rakakosha mukuvandudzwa kwezvigadzirwa zvemagetsi zvemberi, zvichipa hwaro hwakagadzika hwekutenderera uku uchiona kushanda kwakakwana uye hupenyu hurefu.

Zvivakwa zveBT Epoxy

BT epoxy inoshandiswa zvakanyanya mukugadzira mabhodhi ecircuit akadhindwa nekuda kwehunhu hwayo hwemagetsi nehwemakanika. Inopa simba rekudzivirira kupisa zvakanyanya, electromigration inoshamisa, uye simba rekudzivirira kupisa, zvichiita kuti ive yakakodzera kubatanidzwa kwePCB isina lead . Pamusoro pezvo, BT epoxy inopa simba rekubatanidza rakakwirira pakupisa kwakanyanya, zvichiita kuti PCB ive yakavimbika mukushandiswa kwayo kwakaoma.

Iyo yakaderera dielectric inogara uye yakakwirira girazi shanduko tembiricha yeBT epoxy resin inovandudza kubatanidzwa kweakadhindwa edunhu mabhodhi, zvichiita kuti ive yakakodzera kune yakakwirira-density interconnect (HDI) application. Iyo yakasarudzika yekupisa kuvhundutsa kuramba uye ion kutama kwekufamba kunowedzera kuwedzera kukodzera kwayo kwemidziyo yemagetsi.

Zvinhu Zvinokurudzira BT PCB Kuita

Zvinhu zvakati wandei zvinokonzeresa mashandiro eBismaleimide Triazine (BT) akadhindwa edunhu mabhodhi (PCBs), anosanganisira:

1. Substrate Material: Sarudzo yeBT resin uye substrate zvinhu zvinogona kukanganisa zvakanyanya kuita kwePCB. Maumbirwo akasiyana eBT resins anopa akasiyana zvivakwa, sekudzikama kwemafuta, dielectric kugara, uye simba remuchina, izvo zvinogona kukanganisa kuvimbika kwese uye kushanda kwePCB.
2. Dhizaini Kufunga: Iyo PCB dhizaini, kusanganisira kurongeka kwezvikamu, kuronda nzira, uye layer stackup, inogona kupesvedzera kutendeseka kwechiratidzo, kugovera simba, uye kutonga kwekupisa. Maitiro ekugadzira akakodzera anogona kukwirisa mashandiro eBT PCB.
3. Manufacturing Process: Nzira yekugadzira, kusanganisira lamination, drilling, plating, uye kupera kwepamusoro, inogona kukanganisa kunaka uye kuvimbika kweBT PCB. Maitiro maparamita uye matanho ekudzora anogona kukanganisa yekupedzisira PCB kuita.
4. Mamiriro ekunze: Mamiriro ekushanda, akadai sekushisa, humidity, uye kutarisana nemakemikari, zvinogona kukanganisa kushanda kweBT PCB. MaBT PCB anozivikanwa nekudzikama kwekupisa kwekupisa uye kuramba kwemakemikari, asi mamiriro akanyanya anogona kuramba achikanganisa kuita kwavo.
5. Gungano uye Soldering: Maitiro egungano, kusanganisira kuiswa kwechikamu, matekiniki ekutengesa, uye reflow profiles, zvinogona kukanganisa kuvimbika uye kushanda kweBT PCB. Maitiro akakodzera ekutengesa akakosha kuti ave nechokwadi chekuvimbika kwePCB.
6. Kuedza uye Kudzora Kwemhando: Kuedza uye nzira dzekuongorora, dzakadai sekuyedzwa kwemagetsi, kuchovha bhasikoro, uye kuongorora kwekuona, kwakakosha pakuona kunaka uye kuvimbika kweBT PCB. Matanho ekutonga kwemhando mukati mekugadzira maitiro akakosha pakuona uye kudzikisira zvingangoitika.

Pakazere, zvinhu zvakasiyana, zvinosanganisira kusarudzwa kwezvinhu, dhizaini, maitiro ekugadzira, mamiriro ezvakatipoteredza, matekiniki egungano, uye kuyedza, pamwe chete zvinopesvedzera kuita kweBT PCB. Kutarisisa kune izvi zvinhu kwakakosha kuti uwane epamusoro-mhando, yakavimbika maPCB eakasiyana emagetsi maapplication.

Mainjiniya vanowanzo simbisa nyaya iyi pamwe chete nekusarudza zvikamu zvePCB uye kugadzirwa kwebhodhi remhangura rinorema pavanenge vachigadzira PCB kana PCBA yakavimbika.

mhedziso

BT PCBs dzave kunyanya kufarirwa pakati pevagadziri vemagetsi nekuda kweakasarudzika emagetsi uye emagetsi zvivakwa. Iko kudhura-kushanda kweBT laminate kunoita kuti ive yakanakira sarudzo yekurongedza chip, ichibatsira zvakanyanya mukufambisira mberi kwemidziyo yemagetsi. Sezvo tekinoroji ichiramba ichishanduka, BT resin inoramba iri chinhu chakakosha mukusangana nezvinodiwa zvemazuva ano zvigadzirwa zvemagetsi.