Ubungakanani kunye nemilinganiselo yeebhodi zeesekethe ze-ceramic

Kule post yebhlog, siza kuphonononga ubungakanani obuqhelekileyo kunye nemilinganiselo yeebhodi zeesekethe zeceramic.

Iibhodi zeesekethe zeCeramic ziya zithandwa ngakumbi kushishino lwe-elektroniki ngenxa yeempawu zabo eziphezulu kunye nokusebenza xa kuthelekiswa neePCB zemveli (iiBhodi zeSekethe eziprintiweyo). Ikwaziwa njenge-ceramic PCBs okanye i-ceramic substrates, ezi bhodi zibonelela ngolawulo olubalaseleyo lwe-thermal, amandla omatshini aphezulu kunye nokusebenza kakuhle kombane.

1. Isishwankathelo seebhodi zeesekethe zeceramic:

Iibhodi zeesekethe zeCeramic zenziwe ngezinto ze-ceramic ezifana ne-aluminium oxide (Al2O3) okanye i-silicon nitride (i-Si3N4) endaweni yezinto eziqhelekileyo ze-FR4 ezisetyenziswa kwii-PCB zendabuko. Izinto ze-Ceramic zine-conductivity engcono ye-thermal kwaye zinokutshabalalisa ngokufanelekileyo ubushushu ukusuka kumacandelo afakwe ebhodini. IiPCB zeCeramic zisetyenziswa kakhulu kwizicelo ezifuna amandla aphezulu kunye neempawu eziphindaphindwayo, ezifana nombane wamandla, ukukhanya kwe-LED, i-aerospace kunye nonxibelelwano.

2. Imilinganiselo kunye nemilinganiselo yeebhodi zeesekethe ze-ceramic:

Ubungakanani bebhodi yeesekethe zeCeramic kunye nobukhulu bunokwahluka ngokuxhomekeke kwizicelo ezithile kunye neemfuno zoyilo. Nangona kunjalo, kukho ubungakanani obuqhelekileyo kunye nemilinganiselo esetyenziswa ngokuqhelekileyo kwishishini. Masingene kule miba:

2.1 Ubude, ububanzi kunye nobukhulu:
Iibhodi zeesekethe zeCeramic ziza kwiindidi ezahlukeneyo zobude, ububanzi kunye nobukhulu ukuze zihambelane noyilo olwahlukeneyo kunye nokusetyenziswa. Ubude obuqhelekileyo bususela kwiimilimitha ezimbalwa ukuya kumakhulu aliqela eemilimitha, ngelixa ububanzi bunokwahluka ukusuka kwiimilimitha ezimbalwa ukuya malunga neemilimitha ezingama-250. Ngokuphathelele ubukhulu, ngokuqhelekileyo yi-0.25 mm ukuya kwi-1.5 mm. Nangona kunjalo, ezi sayizi zinokwenziwa ukuze zihlangabezane neemfuno ezithile zeprojekthi.

2.2 Inani leeleya:
Inani leengqimba kwibhodi yesekethe ye-ceramic inquma ubunzima kunye nokusebenza kwayo. IiPCB zeCeramic zinokuba neemaleko ezininzi, ngokwesiqhelo ukusuka kuyilo olunye ukuya kumaleko amathandathu. Iingqimba ezininzi zivumela ukudityaniswa kwamacandelo okongeziweyo kunye nemikhondo, eququzelela ukuyila kweesekethe eziphezulu.

2.3 Ubungakanani bomngxuma:
IiPCB zeCeramic zixhasa iisayizi ezahlukeneyo zokuvula ngokuxhomekeke kwiimfuno zesicelo. Imingxuma inokwahlulwa ibe ziindidi ezimbini: ifakwe kwimingxunya (PTH) kunye nengafakwanga kwimingxunya (NPTH). Ubungakanani bomngxunya obuqhelekileyo be-PTH buvela kwi-0.25 mm (10 mils) ukuya kwi-1.0 mm (40 mils), ngelixa ubukhulu bemingxuma ye-NPTH bunokuba buncinci njenge-0.15 mm (6 mils).

2.4 Umkhondo kunye nobubanzi besithuba:
Umkhondo kunye nobubanzi bendawo kwiibhodi zeesekethe ze-ceramic zidlala indima ebalulekileyo ekuqinisekiseni imfezeko yesignali efanelekileyo kunye nokusebenza kombane. Ububanzi bomkhondo obuqhelekileyo buvela kwi-0.10 mm (4 mils) ukuya kwi-0.25 mm (i-10 mils) kwaye iyahluka ngokusekelwe kwizakhono zokuthwala zangoku. Ngokufanayo, ububanzi be-gap buhluka phakathi kwe-0.10 mm (4 mils) kunye ne-0.25 mm (10 mils).

3. Izinto eziluncedo kwiibhodi zeesekethe zeceramic:

Kubalulekile ukuqonda ubungakanani obuqhelekileyo kunye nemilinganiselo yeebhodi zesekethe yeceramic, kodwa kubalulekile ukuqonda izibonelelo abazinikezelayo:

3.1 Ulawulo lobushushu:
I-conductivity ephezulu ye-thermal yezinto ze-ceramic iqinisekisa ukutshatyalaliswa kobushushu obusebenzayo bamacandelo amandla, ngaloo ndlela ukwandisa ukuthembeka kwenkqubo yonke.

3.2 Amandla oomatshini:
Iibhodi zeesekethe zeCeramic zinamandla abalaseleyo omatshini, zibenza baxhathise kakhulu kwizinto ezahlukeneyo zangaphandle ezifana nokungcangcazela, ukothuka kunye neemeko zokusingqongileyo.

3.3 Ukusebenza kombane:
IiPCB zeCeramic zinelahleko ephantsi ye-dielectric kunye nokulahleka komqondiso ophantsi, okuvumela ukusebenza kwe-high-frequency kunye nokuphucula imfezeko yesignali.

3.4 I-miniaturization kunye noyilo olunoxinaniso oluphezulu:
Ngenxa yobungakanani bazo obuncinci kunye neempawu ezingcono zobushushu, iibhodi zesekethe yeceramic zenza ukuba i-miniaturization kunye noyilo olunoxinaniso oluphezulu ngelixa igcina ukusebenza kombane okugqwesileyo.

4. ekuqukumbeleni:

Ubungakanani obuqhelekileyo kunye nobukhulu beebhodi zeesekethe ze-ceramic ziyahluka ngokuxhomekeke kwisicelo kunye neemfuno zoyilo. Ubude kunye nobubanzi bawo buvela kwiimilimitha ezimbalwa ukuya kumakhulu amaninzi eemilimitha, kwaye ubukhulu bawo buvela kwi-0.25 mm ukuya kwi-1.5 mm. Inani leeleya, ubungakanani bomngxuma, kunye nobubanzi bomkhondo nazo zidlala indima ebalulekileyo ekumiseleni ukusebenza kunye nokusebenza kweePCB zeceramic. Ukuqonda le milinganiselo kubalulekile ekuyileni nasekuphunyezweni kweenkqubo zombane ezisebenzayo ezithatha ithuba leebhodi zesekethe zeceramic.