1. Yintoni ukubhola ngasemva?

Ukwemba ngasemva luhlobo olukhethekileyo lokomba umngxuma onzulu. Kwimveliso yeebhodi ezininzi, ezifana neebhodi ze-12-layer, kufuneka sidibanise uluhlu lokuqala kwinqanaba lesithoba. Ngokuqhelekileyo, siqhubela umngxuma (i-drill enye) kwaye sidibanise ubhedu.Ngale ndlela, umgangatho wokuqala udibene ngokuthe ngqo kumgangatho we-12. Enyanisweni, sifuna kuphela umgangatho wokuqala ukudibanisa kumgangatho we-9, kunye nomgangatho we-10 ukuya kumgangatho we-12 ngenxa yokuba akukho xhulumaniso lomgca, njengentsika.Le ntsika ichaphazela indlela yomqondiso kwaye ingabangela iingxaki zokunyaniseka kwesibonakaliso iimpawu zonxibelelwano.Ngoko ukubhobhoza ikholamu engafunekiyo (STUB kushishino) ukusuka kwicala elingasemva (uqheliso lwesibini) .Ngoko kuthiwa yi-drill ngasemva, kodwa ngokuqhelekileyo ayiqhelwanga icocekile, kuba inkqubo elandelayo iya electrolysis off ubhedu kancinane, kunye nengcebiso drill. ngokwayo ikhomba.Ngoko ke, umenzi we-PCB uya kushiya inqaku elincinci. Ubude be-STUB bale STUB ibizwa ngokuba yi-B ixabiso, eliqhelekileyo kuluhlu lwe-50-150um.

2.Iinzuzo zokugrumba ngasemva

1) ukunciphisa ukuphazamiseka kwengxolo

2) ukuphucula ingqibelelo yesignali

3) ubukhulu beplate yendawo buyancipha

4) ukunciphisa ukusetyenziswa kwemingxuma eyimfama engcwatywe kwaye inciphise ubunzima bemveliso yePCB.

3. Ukusetyenziswa kokomba ngasemva

Ukubuyela ekuqhubeni i-drill yayingenalo naluphi na uxhulumaniso okanye umphumo wecandelo lomngxuma, thintela ukubangela ukubonakaliswa kokudluliselwa kwesignali yesantya esiphezulu, ukusabalalisa, ukulibaziseka, njl., kuzisa umqondiso "ukuphazamiseka" uphando lubonise ukuba izinto eziphembelela inkqubo umqondiso umqondiso uyilo ingqibelelo, izinto ipleyiti, ukongeza kwizinto ezifana imigca transmission, izihlanganisi, ipakethe chip, umngxuma isikhokelo unempembelelo enkulu kwi imfezeko uphawu.

4. Umgaqo wokusebenza wokugrumba ngasemva

Xa inaliti yokubhola ibhobhoza, i-micro yangoku eveliswayo xa inaliti ye-drill idibanisa i-foil yobhedu kumphezulu weplate yesiseko iya kubangela indawo yokuphakama kwepleyiti, kwaye emva koko i-drill iya kuqhutywa ngokobunzulu bokwemba. kwaye i-drill iya kumisa xa ubunzulu bokomba bufikelelwe.

Inkqubo yokuvelisa i-5.Back yokuvelisa

1) ukubonelela ngePCB ngomngxuma wesixhobo. Sebenzisa umngxuma wesixhobo ukubeka iPCB kwaye ugqobhoze umngxuma;

2) i-electroplating i-PCB emva kokubhoboza umgodi, kwaye utywine umgodi ngefilimu eyomileyo ngaphambi kwe-electroplating;

3) yenza imizobo engaphandle kwi-electroplated PCB;

4) ukuqhuba i-electroplating ye-pattern kwi-PCB emva kokwenza iphethini yangaphandle, kwaye uqhube ukutywinwa kwefilimu eyomileyo yomgodi wokumisa phambi kwe-electroplating ye-pattern;

5) sebenzisa umngxuma wokumisa osetyenziswa yi-drill enye ukubeka i-drill yangasemva, kwaye usebenzise i-drill cutter ukubuyisela umva umngxuma we-electroplating ofuna ukugotywa ngasemva;

6) hlamba u-back drilling emva kokugaya ngasemva ukususa ama-cuttings ashiyekileyo ekubhobhozeni ngasemva.

6. Iimpawu zobuchwephesha bepleyiti yokugaya ngasemva

1) Ibhodi eqinile (ininzi)

2) Ngokuqhelekileyo yi-8 - 50 imigangatho

3) Ubukhulu bebhodi: ngaphezu kwe-2.5mm

4) Ubukhulu bedayamitha bukhulu kakhulu

5) Ubungakanani bebhodi bukhulu kakhulu

6) Ubuncinci bomngxuma we-drill wokuqala> = 0.3mm

7) Isekethe yangaphandle ingaphantsi, uyilo olungaphezulu lwesikwere kumngxuma woxinzelelo

8) Umngxuma ongasemva udla ngokuba ngu-0.2mm mkhulu kunomngxuma ekufuneka ugrunjwe

9) Ukunyamezela ubunzulu +/- 0.05mm

10) Ukuba i-drill yangasemva ifuna ukugrunjwa kwi-M layer, ubukhulu be-medium phakathi kwe-M layer kunye ne-m-1 (umaleko olandelayo we-M layer) iya kuba yi-0.17mm ubuncinane.

7.Esona sicelo siphambili sepleyiti yokubhola ngasemva

Izixhobo zonxibelelwano, iseva enkulu, i-elektroniki yezonyango, umkhosi, i-aerospace kunye nezinye iinkalo. Njengoko umkhosi kunye ne-aerospace ingamashishini anovakalelo, i-backplane yasekhaya idla ngokubonelelwa liziko lophando, iziko lophando kunye nophuhliso lweenkqubo zomkhosi kunye ne-aerospace okanye abavelisi be-PCB abanomkhosi oqinileyo kunye ne-aerospace. ishishini, kwaye ngoku intsimi yokuvelisa izixhobo zonxibelelwano ngokuthe ngcembe iphuhla.