Guhuza insinga- uburyo bwo gushiraho chip kuri PCB

Hano hari chip 500 kugeza 1200 zahujwe na buri wafer mbere yuko inzira irangira. Kugirango ukoreshe izo chipi aho bikenewe, wafer igomba gukatwamo uduce tumwe hanyuma igahuzwa hanze hanyuma igashyirwa kuri. Muri iki gihe, uburyo bwo guhuza insinga (inzira zo kohereza ibimenyetso byamashanyarazi) byitwa guhuza insinga.

Ibikoresho bya wirebonding: zahabu / aluminium / umuringa

Ibikoresho bya wirebonding bigenwa no gusuzuma byimazeyo ibipimo bitandukanye byo gusudira no kubihuza muburyo bukwiye. Ibipimo byavuzwe hano bikubiyemo ibintu byinshi, harimo ubwoko bwibicuruzwa bya semiconductor, ubwoko bwo gupakira, ingano ya padi, diameter yicyuma cya diametre, uburyo bwo gusudira, hamwe nibipimo byiringirwa nkimbaraga zingana no kuramba kwicyuma. Ibikoresho bisanzwe biyobora birimo zahabu, aluminium n'umuringa. Muri byo, insinga za zahabu zikoreshwa cyane mu gupakira semiconductor.

Gold Wire ifite amashanyarazi meza, ihagaze neza, kandi ifite imbaraga zo kurwanya ruswa. Nyamara, imbogamizi nini ya wire ya aluminium, yakoreshwaga cyane muminsi yambere, nuko byari byoroshye korora. Byongeye kandi, ubukana bwinsinga ya zahabu burakomeye, kuburyo bushobora kuba bwiza mumupira muguhuza kwambere, kandi burashobora gukora neza uruziga ruzengurutse uruziga (Loop, kuva kumurongo wambere kugeza kumurongo wa kabiri) murwego rwa kabiri. imiterere yashizweho).

Aluminium Wire ifite diameter nini kandi nini kuruta insinga za zahabu. Kubwibyo, niyo insinga ya zahabu isukuye cyane ikoreshwa mugukora icyerekezo cyambere, ntabwo izavunika, ariko insinga ya aluminiyumu isukuye byoroshye, bityo izavangwa na silicon cyangwa magnesium kugirango ikore amavuta. Umugozi wa aluminium ukoreshwa cyane mubipfunyika ubushyuhe bwo hejuru (nka Hermetike) cyangwa uburyo bwa ultrasonic aho insinga ya zahabu idashobora gukoreshwa.

Nubwo insinga y'umuringa ihendutse, ubukana bwayo buri hejuru. Niba ubukana buri hejuru cyane, ntibizoroha gukora muburyo bwumupira, kandi hariho imbogamizi nyinshi mugihe ukora imirongo. Byongeye kandi, igitutu kigomba gukoreshwa kuri chip pad mugihe cyo guhuza umupira. Niba ubukana buri hejuru cyane, ibice bizagaragara muri firime hepfo ya padi. Mubyongeyeho, hazabaho "gukuramo" ibintu aho urwego ruhujwe rwose. Nubwo bimeze bityo ariko, kubera ko insinga z'icyuma za chip zikozwe mu muringa, hari uburyo bugenda bwiyongera bwo gukoresha insinga z'umuringa muri iki gihe. Byumvikane ko, kugirango tuneshe intege nke zumuringa wumuringa, mubisanzwe bivangwa nubunini bwibindi bikoresho kugirango ube umusemburo hanyuma ukoreshwa.