Yeyiphi imiba yoyilo lweebhodi zeHDI?

Iibhodi ze-HDI (i-High Density Interconnect) ziye zaba zezona zikhethwayo kuyilo lwe-elektroniki lwanamhlanje. Banikezela ngeenzuzo ezininzi ngaphezulu kweebhodi zesekethe eziprintiweyo zemveli (iiPCB), ezinje ngoxinaniso lwesekethe ephezulu, izinto ezincinci zeefom, kunye nokuphuculwa kwemfezeko yesiginali. Nangona kunjalo,Iingqwalasela zoyilo olulodwa lweebhodi ze-HDI zifuna ukucwangciswa ngononophelo kunye nokuphunyezwa ukuqinisekisa ukusebenza kakuhle kunye nokuthembeka. Apha siza kuphonononga imiba ephambili ekufuneka iqwalaselwe xa kuyilwa ibhodi yeHDI.

1. Ukwenziwa kweMiniaturization kunye noyilo lwecandelo:

Esinye sezizathu eziphambili zokusebenzisa iibhodi ze-HDI kukukwazi kwabo ukuhlalisa inani elikhulu lamacandelo kwindawo encinci. Njengomyili, kuya kufuneka uqwalasele inkalo ye-miniaturization kwaye ucwangcise ngononophelo uyilo lwamacandelo. Ukubekwa kwecandelo kudlala indima ephambili ekufezekiseni uyilo olubambeneyo ngaphandle kokubeka esichengeni isidima somqondiso.

Ukwandisa i-miniaturization, cinga ukusebenzisa izinto ezincinci, ezihlangeneyo. Ukongezelela, ukusetyenziswa kweteknoloji ye-surface Mount (SMT) yenza ukubekwa kwecandelo ngokufanelekileyo, ukunciphisa ubukhulu bebhodi. Nangona kunjalo, qiniseka ukuba uhlalutya ukuqwalaselwa kwe-thermal kunye nokuqinisekisa iindlela zokupholisa ezifanelekileyo, ngakumbi kumacandelo aphezulu ombane.

2. Intembeko yoMqondiso kunye nokudluliselwa:

Iibhodi ze-HDI zixhasa i-frequency ephezulu kunye nezicelo zesantya esiphezulu, ngoko ke imfezeko yesignali iba yinto ebalulekileyo. Ukunciphisa ilahleko yesignali kunye nokuphazamiseka kubalulekile ukwenzela ukugcina ingqibelelo yomqondiso. Nazi izinto ezibalulekileyo ekufuneka uzikhumbule:

a. Ulawulo loMbane:Iqinisekisa ukuhambelana okufanelekileyo kwe-impedance kuyo yonke ibhodi. Oku kunokufezekiswa ngokukhethwa ngononophelo kobubanzi bomkhondo, isithuba kunye nemathiriyeli ye-dielectric. Ukuthotyelwa kwemigangatho elawulwayo ye-impedance ethile kwisicelo sakho kubalulekile ekunciphiseni ukuthotywa komqondiso.

b. I-crosstalk elawulwayo:Uyilo olunoxinaniso oluphezulu luhlala lukhokelela kwizithuba eziqinileyo zomkhondo kwiibhodi ze-HDI, ezikhokelela kwi-crosstalk. I-Crosstalk yenzeka xa umqondiso uphazamisana nokulandela okukufutshane, kubangela ukuthotywa komqondiso. Ukuthomalalisa iziphumo ze-crosstalk, sebenzisa ubuchule obunje ngokwahlukana kweendlela ezimbini, ukukhusela, kunye nezabelo ezifanelekileyo zenqwelomoya.

c. Ukunyaniseka kwamandla:Ukugcina unikezelo lwamandla oluzinzileyo kwibhodi yonke kubalulekile ekugqithiseni umqondiso ofanelekileyo. Bandakanya i-decoupling capacitors eyaneleyo, iinqwelomoya eziphantsi komhlaba, kunye neenqwelomoya zamandla ukuqinisekisa indlela ephantsi yokuthintela ukuhanjiswa kwamandla.

d. Iingqwalasela ze-EMI/EMC:Njengoko uxinaniso lwesekethe lusanda, kunjalo ke nomngcipheko we-Electromagnetic Interference (EMI) kunye ne-Electromagnetic Compatibility (EMC) imiba. Nika ingqalelo kubuchule obufanelekileyo bokumisa, izicwangciso zokukhusela, kunye nezihluzi ze-EMI ukunciphisa ukubakho kwebhodi ye-HDI kuphazamiseko lwangaphandle lombane.

3. Imingeni yokwenziwa kwemveliso kunye nokukhetha imathiriyeli:

Ukuyila kunye nokuvelisa iibhodi ze-HDI zinokubonisa imingeni eyahlukeneyo ngenxa yobunzima obuninzi. Ukukhetha izinto ezifanelekileyo kunye nobuchule bokwenza izinto kubalulekile kwimpumelelo yoyilo. Qwalasela oku kulandelayo:

a. Ukupakisha umaleko kunye nocwangciso:Iibhodi ze-HDI zihlala zinemigangatho emininzi, rhoqo kwii-stack-ups ezinzima. Cwangcisa ngononophelo umaleko wokupakisha ukujongana noxinaniso lwendlela olufunwayo, kuthathelwa ingqalelo izinto ezinje ngobungakanani bokomba, ngodidi (olunje ngemfama, ukungcwatywa, okanye imicrovia), kunye nokubekwa kwayo. Ngokufanelekileyo ngokucwangcisa iqinisekisa ukuhanjiswa komqondiso ngokufanelekileyo ngaphandle kokubeka esichengeni ukuthembeka.

b. Ukukhethwa kwezinto:Khetha imathiriyeli efanelekileyo yelaminate esekwe ekusebenzeni kombane ofunekayo, iimfuno zolawulo lobushushu, kunye nokuqwalaselwa kweendleko. Iibhodi ze-HDI ngokuqhelekileyo zixhomekeke kwizinto ezikhethekileyo ezinobushushu obuphezulu beglasi yokutshintsha, izinto eziphantsi zokulahla, kunye nokuhamba kakuhle kwe-thermal. Qhagamshelana nababoneleli ngemathiriyeli ukufumanisa eyona ndlela ifanelekileyo.

c. Ukunyamezelwa kokwenziwa kwemveliso:I-miniaturization kunye nokwanda kokuntsonkotha kweebhodi ze-HDI kufuna ukunyamezela ukuveliswa kwemveliso. Qiniseka ukuba uchaza kwaye unxibelelane nokunyamezela kwakho kumvelisi ukuze uqinisekise imveliso echanekileyo kunye nokufaneleka.

4. Ukuthembeka kunye nokuqwalaselwa koVavanyo:

Ukuthembeka kwebhodi ye-HDI kubalulekile kwisicelo sayo esijoliswe kuyo. Ukuphucula ukuthembeka kunye nokwenza lula ukulungisa ingxaki, qwalasela le miba ilandelayo yoyilo:

a. Uyilo lokuVavanya (DFT):Ukubandakanya amanqaku okuvavanya, njengamanqaku okufikelela kwi-logic analyzer okanye amanqaku okuvavanya umda we-border-scan, anokunceda ekuvavanyeni emva kokuveliswa kunye nokulungiswa kweempazamo.

b. Iingqwalasela zobushushu:Kuba iibhodi ze-HDI zihlala zipakisha inani elikhulu lamacandelo kwindawo encinci, ulawulo lwe-thermal luba lubalulekileyo. Sebenzisa ubuchule obufanelekileyo bokupholisa, obufana neesinki zobushushu okanye i-thermal vias, ukuqinisekisa ukuba amacandelo asebenza ngaphakathi kwemida yobushushu echaziweyo.

c. Imiba yokusingqongileyo:Qonda iimeko zokusingqongileyo apho ibhodi ye-HDI iya kusebenza kwaye iyilwe ngokufanelekileyo. Izinto ezinje ngokugqithisileyo kobushushu, ukufuma, uthuli, kunye nokungcangcazela zithathelwa ingqalelo ukuze kuqinisekiswe ukuba ibhodi inokumelana nemeko-bume ekujoliswe kuyo.

Isishwankathelo, ukuyila ibhodi ye-HDI kufuna ukuqwalaselwa kwezinto ezininzi eziphambili ukuphumeza ukuxinana kweesekethe eziphezulu, ukwandisa imfezeko yomqondiso, ukuqinisekisa ukuthembeka, kunye nokwenza lula ukwenziwa. Ngokucwangcisa ngononophelo kunye nokuphumeza isicwangciso se-miniaturization, ukuqwalasela intembeko yomqondiso kunye nemigaqo yokuhambisa, ukukhetha izinto ezifanelekileyo, kunye nokujongana nemiba yokuthembeka, unokuqaphela amandla apheleleyo eteknoloji ye-HDI kwizicwangciso zakho.I-Shenzhen Capel Technology Co., Ltd. iye yabandakanyeka ngokunzulu kwiibhodi zeesekethe iminyaka eyi-15. Ngokuqukuqela kwenkqubo engqongqo, ubuchule benkqubo ephucukileyo, iinkonzo zobuchwephesha bobuchwephesha, amava eprojekthi etyebileyo kunye nobugcisa obutsha, siye saphumelela ukuthenjwa ngabathengi. Kwaye ngalo lonke ixesha sinokufumana ithuba lentengiso yeprojekthi yomthengi.