Ceramic Circuit Boards Manufacturing: Ndezvipi zvinhu zvinoshandiswa?

Mune ino blog positi, isu tichaongorora zvinhu zvikuru zvinoshandiswa mukugadzirwa kweceramic redunhu mabhodhi uye kukurukura kukosha kwazvo kuti uwane kuita kwakaringana.

Mukugadzirwa kweceramic circuit boards, zvakasiyana-siyana zvezvinhu zvinotora basa rinokosha pakuita basa ravo uye kuvimbika. Ceramic circuit boards, inozivikanwawo seceramic printed circuit boards (PCBs), inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana anosanganisira zvemagetsi, aerospace uye mota nekuda kwekunaka kwazvo kwekupisa kwekushisa, tembiricha yekushanda uye yepamusoro yemagetsi.

Ceramic circuit boards inonyanya kuumbwa nemusanganiswa weceramic zvinhu nesimbi, yakanyatsosarudzwa kuti isangane nezvinodiwa zvekushandisa kwakasiyana.

1. Ceramic substrate:

Nheyo dzeceramic circuit board ndiyo ceramic substrate, iyo inopa hwaro hwezvimwe zvikamu zvese. Aluminium oxide (Al2O3) uye aruminiyamu nitride (AlN) ndiwo anonyanya kushandiswa ceramic zvinhu. Alumina ine simba rakanakisa remuchina, yakakwira yekupisa conductivity uye yakanaka magetsi ekudzivirira, zvichiita kuti ive yakakodzera kune dzakasiyana siyana dzekushandisa. Aluminium nitride, kune rumwe rutivi, inopa yakanakisa yekupisa conductivity uye kupisa kwekuwedzera zvivakwa, zvichiita kuti ive yakakodzera kune zvikumbiro zvinoda kunyatsopisa kupisa.

2. Conductive traces:

Conductive traces ine basa rekutakura masaini emagetsi pakati pezvikamu zvakasiyana pabhodhi redunhu. Mumapuranga eceramic edunhu, simbi dzesimbi dzakaita segoridhe, sirivheri, kana mhangura dzinoshandiswa kugadzira aya mavara. Idzi simbi dzakasarudzwa nekuda kwekukwirira kwayo kwemagetsi uye kuenderana neceramic substrates. Goridhe rinowanzo kufarirwa nekuda kwekushomeka kwecorrosion uye kugadzikana kwemagetsi zvivakwa, kunyanya mune yakakwirira-frequency application.

3. Dielectric layer:

Dielectric layers yakakosha pakuisa insulating conductive traces uye kudzivirira kukanganiswa kwechiratidzo uye mapfupi maseketi. Iyo yakajairika dielectric zvinhu zvinoshandiswa muceramic circuit board igirazi. Girazi rine yakanakisa magetsi insulating zvivakwa uye inogona kuiswa seyakatetepa layer pane ceramic substrates. Mukuwedzera, girasi regirazi rinogona kugadziriswa kuti rive nehumwe dielectric inoramba ichikosha, ichibvumira kunyatsogadzirisa zvinhu zvemagetsi zvebhodhi redunhu.

4. Solder mask uye pamusoro pekurapa:

Solder mask inoiswa pamusoro peiyo conductive traces kuvadzivirira kubva kune zvakatipoteredza zvinhu zvakaita seguruva, hunyoro, uye oxidation. Aya masiki anowanzo gadzirwa kubva epoxy kana polyurethane-yakavakirwa zvinhu zvinopa insulation uye kudzivirira. Shandisa marapirwo epamusoro senge kunyudza tin kana goridhe plating kuti bhodhi riite solderability uye kudzivirira oxidation yemaronda emhangura ari pachena.

5. Kuburikidza nekuzadza zvinhu:

Vias maburi madiki akaboorwa kuburikidza nebhodhi redunhu rinobvumira kubatana kwemagetsi pakati pezvikamu zvakasiyana zvebhodhi. Muceramic redunhu mabhodhi, kuburikidza nekuzadza zvinhu zvinoshandiswa kuzadza aya maburi uye nekuona yakavimbika magetsi conductivity. Zvakajairika kuburikidza nekuzadza zvinhu zvinosanganisira conductive paste kana mafirita akagadzirwa nesirivheri, mhangura kana mamwe masimbi masimbi, akasanganiswa negirazi kana ceramic fillers. Uku kusanganiswa kunopa magetsi uye mechanical kugadzikana, kuve nechokwadi chekubatana kwakasimba pakati pezvikamu zvakasiyana.

Muchidimbu

Kugadzirwa kweceramic circuit board kunosanganisira musanganiswa weceramic zvinhu, simbi uye zvimwe zvinhu zvine hunyanzvi. Aluminium oxide uye aluminium nitride inoshandiswa se substrates, nepo simbi dzakaita segoridhe, sirivheri nemhangura dzinoshandiswa pakuteedzera trace. Girazi rinoshanda se dielectric material, rinopa magetsi ekudzivirira, uye epoxy kana polyurethane solder mask inodzivirira maitiro ekufambisa. Kubatana pakati pematanho akasiyana anotangwa kuburikidza nekuzadza zvinhu zvinosanganisira conductive paste uye mafirita.

Kunzwisisa zvinhu zvinoshandiswa mukugadzirwa kweceramic circuit board kwakakosha kune mainjiniya nevagadziri kuti vagadzire zvigadzirwa zvemagetsi zvinoshanda uye zvakavimbika. Kusarudza zvinhu zvakakodzera zvinoenderana nezvinodiwa zvekushandisa senge thermal conductivity, zvinhu zvemagetsi uye mamiriro ekunze. Nekushandisa iyo yakasarudzika zvimiro zvechinhu chimwe nechimwe, Ceramic circuit board inoramba ichichinja maindasitiri akasiyana nekuita kwavo kwepamusoro uye kusimba.