Wore Bonding wata hanya ce ta haɗa ƙarfe da ke kaiwa ga kushin, wato, dabarar haɗa kwakwalwan kwamfuta na ciki da na waje.

A tsari, jagororin ƙarfe suna aiki azaman gada tsakanin kushin guntu (na farko bonding) da kushin ɗaukar kaya (na biyu). A zamanin farko, ana amfani da firam ɗin gubar azaman masu ɗaukar hoto, amma tare da saurin haɓakar fasaha, PCBS yanzu ana ƙara amfani da su azaman kayan maye. Haɗin wayar da ke haɗa pads masu zaman kansu guda biyu, kayan gubar, yanayin haɗin gwiwa, matsayi na haɗin gwiwa (ban da haɗa guntu da ma'auni, amma kuma an haɗa su zuwa kwakwalwan kwamfuta guda biyu, ko nau'ikan biyu) sun bambanta sosai.

1.Wire Bonding: Thermo-Compression/Ultrasonic/Thermosonic
Akwai hanyoyi guda uku don haɗa gubar ƙarfe zuwa kushin:

① Hanyar matsawa Thermo, walda kushin da capillary splitter (mai kama da capillary-dimbin kayan aiki don matsar da karfe jagoranci) ta hanyar dumama da matsawa;
②Hanyar Ultrasonic, ba tare da dumama ba, ana amfani da igiyar ultrasonic zuwa mai raba capillary don haɗi.
③Thermosonic hanya ce ta hadewa wacce ke amfani da zafi da duban dan tayi.
Na farko ita ce hanyar haɗin kai mai zafi, wanda ke dumama zafin kushin guntu zuwa kusan 200 ° C a gaba, sa'an nan kuma ƙara yawan zafin jiki na capillary splicer tip don sanya shi cikin ball, kuma yana matsa lamba akan kushin ta cikin capillary splicer, don haɗa gubar karfe zuwa kushin.
Hanya ta biyu na Ultrasonic ita ce amfani da raƙuman ruwa na ultrasonic zuwa Wedge (mai kama da capillary Wedge, wanda shine kayan aiki don motsawar karfe, amma ba ya samar da ball) don cimma haɗin haɗin ƙarfe zuwa kushin. Amfanin wannan hanya shine ƙananan tsari da farashin kayan aiki; Koyaya, saboda hanyar ultrasonic ta maye gurbin tsarin dumama da matsawa tare da raƙuman ruwa mai sauƙin sarrafa ultrasonic, ƙarfin ɗaure mai ɗaure (ikon ja da ja da waya bayan haɗawa) yana da rauni.
2.Material na bonding karfe take kaiwa: Gold (Au) / Aluminum (Al) / Copper (Cu)
An ƙaddara kayan aikin ƙarfe na ƙarfe bisa ga cikakkiyar la'akari da sigogin walda daban-daban da haɗuwa da hanya mafi dacewa. Yawancin kayan gubar ƙarfe sune zinariya (Au), aluminum (Al) da kuma jan karfe (Cu).
Wayar Zinariya tana da kyawawan halayen lantarki, daidaiton sinadarai da juriya mai ƙarfi. Koyaya, babban hasara na farkon amfani da waya ta aluminum yana da sauƙin lalata. Kuma taurin wayar gwal yana da ƙarfi, don haka zai iya samar da ƙwallon da kyau a farkon haɗin gwiwa, kuma zai iya samar da madaurin gubar semicircular (siffar da aka yi daga haɗin farko zuwa haɗin na biyu) daidai a cikin haɗin na biyu.
Wayar Aluminum ta fi girma a diamita fiye da wayar zinare, kuma farar ya fi girma. Don haka, ko da za a yi amfani da wayar zinari mai tsafta wajen samar da zoben gubar, ba za ta karye ba, amma za a iya karyewa ta hanyar siliki ko magnesium da sauran allurai. Ana amfani da waya mafi girma a cikin marufi masu zafi (kamar Hermetic) ko hanyoyin ultrasonic inda ba za a iya amfani da waya ta gwal ba.
Waya Copper yana da arha, amma yana da wahala sosai. Idan taurin ya yi yawa, ba shi da sauƙi a samar da ƙwallon, kuma akwai iyakoki da yawa lokacin ƙirƙirar zoben gubar. Bugu da ƙari, ya kamata a yi amfani da matsi a kan guntun guntu yayin aikin haɗin ƙwallon, kuma idan taurin ya yi yawa, fim ɗin da ke ƙasan kushin zai tsage. Bugu da kari, za a iya samun “peeling” na amintaccen layin kushin da aka haɗa.

Duk da haka, saboda ƙarfe na guntu na guntu an yi shi da tagulla, ana samun karuwar amfani da wayar tagulla. Don shawo kan gazawar waya na jan karfe, yawanci ana haɗe shi da ƙaramin adadin wasu kayan don samar da gami.