1. Iyini iphakheji ethambile ye-COB
Abasebenzisi be-inthanethi abacophelelayo bangathola ukuthi kukhona into emnyama kwamanye amabhodi wesekethe, manje yini le nto?Kungani lisebhodini lesekethe?Uyini umphumela?Eqinisweni, lolu uhlobo lwephakheji.Sivame ukukubiza ngokuthi "iphakheji elithambile".Kuthiwa iphakheji elithambile empeleni "linzima", futhi impahla yalo i-epoxy resin., Sivame ukubona ukuthi indawo eyamukelayo yekhanda elitholayo nayo iyingxenye yale nto, futhi i-chip IC ingaphakathi kwayo.Le nqubo ibizwa ngokuthi "ukubopha", futhi ngokuvamile sikubiza ngokuthi "ukubopha".
Lena inqubo yokuhlanganisa izintambo kunqubo yokukhiqiza i-chip.Igama layo lesiNgisi yi-COB (Chip On Board), okungukuthi, i-chip on board package.Lobu ngobunye bobuchwepheshe bokufaka ama-chip angenalutho.I-chip ihlanganiswe ne-epoxy resin.Ifakwe ebhodini lesifunda eliphrintiwe le-PCB, kungani-ke amanye amabhodi wesifunda engenalo lolu hlobo lwephakheji, futhi yiziphi izici zalolu hlobo lwephakheji?
2. Izici zephakheji elithambile le-COB
Lolu hlobo lobuchwepheshe bokupakisha okuthambile luvame ukuba yizindleko.Njengokufakwa kwe-chip elula kakhulu engenalutho, ukuze kuvikelwe i-IC yangaphakathi emonakalweni, lolu hlobo lokupakisha ngokuvamile ludinga ukubunjwa kwesikhathi esisodwa, okuvamise ukubekwa endaweni engaphezulu ye-copper yebhodi lesifunda.Iyindilinga futhi umbala umnyama.Lobu buchwepheshe bokupakisha bunezinzuzo zezindleko eziphansi, ukonga isikhala, ukukhanya nokuncane, umphumela omuhle wokukhipha ukushisa, kanye nendlela yokupakisha elula.Izifunda eziningi ezihlanganisiwe, ikakhulukazi izifunda eziningi ezingabizi kakhulu, zidinga kuphela ukuhlanganiswa kule ndlela.I-chip yesifunda iholwa ngaphandle ngezintambo zensimbi ezengeziwe, bese inikezwa umenzi ukuthi abeke i-chip ebhodini lesifunda, ayithengise ngomshini, bese usebenzisa i-glue ukuze aqinise futhi aqine.
3. Izikhathi zokufaka izicelo
Ngenxa yokuthi lolu hlobo lwephakheji lunezici zalo ezihlukile, luphinde lusetshenziswe kwamanye amasekhethi kagesi, njengezidlali ze-MP3, izitho ze-elekthronikhi, amakhamera edijithali, ama-game consoles, njll., ukuphishekela amasekhethi abiza kancane.
Eqinisweni, ukupakishwa okuthambile kwe-COB akugcini nje kuphela kuma-chips, kuphinde kusetshenziswe kabanzi kuma-LED, njengomthombo wokukhanya we-COB, okuwubuchwepheshe obuhlanganisiwe bomthombo wokukhanya ongaphezulu obunamathiselwe ngqo ku-substrate yensimbi yesibuko ku-chip ye-LED.