PCB iyenera kukhala yosamva moto ndipo siyenera kuyaka pa kutentha kwina, kuti ikhale yofewa. Kutentha kwa nthawiyi kumatchedwa kutentha kwa galasi (TG point), komwe kumagwirizana ndi kukula kwa PCB.

Kodi TG PCB yapamwamba ndi chiyani komanso ubwino wogwiritsa ntchito TG PCB yapamwamba?

Kutentha kwa TG PCB ikakwera kupita kumalo ena, gawo lapansi lidzasintha kuchokera ku "galasi state" kupita ku "rabara state", ndiye kutentha panthawiyi kumatchedwa kutentha kwa vitrification (TG) pa bolodi. Mwanjira ina, TG ndiye kutentha kwambiri komwe gawo lapansi limakhala lolimba.

Kodi PCB board ili ndi mtundu wanji makamaka?

Mulingo kuchokera pansi mpaka pamwamba ukuwonekera pansipa:

94HB - 94VO - 22F - CEM-1 - CEM-3 - FR-4

Tsatanetsatane ndi motere:

94HB: makatoni wamba, osawotchera moto (zinthu zotsika kwambiri, kubaya, sizingapangidwe kukhala bolodi lamagetsi)

94V0: makatoni oyimitsa moto (kufa kukhomerera)

22F: galasi lokhala ndi mbali imodzi ya fiberboard (kufa kukhomerera)

CEM-1: bolodi la fiberglass yokhala ndi mbali imodzi (kubowola pakompyuta kuyenera kuchitika, osati kubaya)

CEM-3: bolodi lokhala ndi mbali ziwiri za fiberglass (zotsika kwambiri za bolodi lokhala ndi mbali ziwiri kupatula bolodi lokhala ndi mbali ziwiri, izi zitha kugwiritsidwa ntchito pamapanelo apawiri, omwe ndi otsika mtengo kuposa FR4)

FR4: board ya fiberglass yokhala ndi mbali ziwiri