Litaba
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Kgahlamelo
Ho pepeseha ho bolela hore tlas'a mahlaseli a khanya ea ultraviolet, photoinitiator e monya matla a leseli 'me e senyeha ho ba li-radicals tsa mahala, ebe li-radicals tsa mahala li qala monoma ea photopolymerization ho phethahatsa polymerization le crosslinking reaction. Ho pepeseha hangata ho jara...Bala haholoanyane -
Kamano ke efe lipakeng tsa likhoele tsa PCB, ka lesoba le matla a ho jara a hajoale?
Khokahano ea motlakase pakeng tsa likarolo tsa PCBA e finyelloa ka mohala oa koporo oa foil le ka masoba ka lera ka 'ngoe. Khokahano ea motlakase pakeng tsa likarolo tsa PCBA e finyelloa ka mohala oa koporo oa foil le ka masoba ka lera ka 'ngoe. Ka lebaka la lihlahisoa tse fapaneng ...Bala haholoanyane -
Kenyelletso ea mosebetsi oa karolo e 'ngoe le e' ngoe ea boto ea potoloho ea PCB e nang le likarolo tse ngata
Multilayer circuit boards e na le mefuta e mengata ea likarolo tse sebetsang, tse kang: lera le sireletsang, lesela la silika, lesela la matšoao, lesela le ka hare, joalo-joalo. U tseba hakae ka lihlopha tsee? Mesebetsi ea lera ka leng e fapane, ha re shebeng hore na mesebetsi ea boemo bo bong le bo bong ke efe ...Bala haholoanyane -
Kenyelletso le melemo le bofokoli ba boto ea ceramic PCB
1. Ke hobane'ng ha u sebelisa liboto tsa potoloho ea ceramic PCB e tloaelehileng hangata e entsoe ka foil ea koporo le substrate bonding, 'me thepa ea substrate ke boholo ba khalase ea fiber (FR-4), phenolic resin (FR-3) le lisebelisoa tse ling, sekhomaretsi hangata ke phenolic, epoxy. , joalo-joalo Ts'ebetsong ea ts'ebetso ea PCB ka lebaka la khatello ea mocheso ...Bala haholoanyane -
Infrared + hot air reflow soldering
Bohareng ba lilemo tsa bo-1990, ho ne ho e-na le mokhoa oa ho fetisetsa mocheso oa moea o chesang oa infrared + ho reflow soldering Japane. E futhumatsoa ke mahlaseli a infrared a 30% le moea o chesang oa 70% e le sesebelisoa sa mocheso. Setofo sa infrared hot air reflow se kopanya hantle melemo ea ho phalla ha infrared le convection e qobelloang ea moea o chesang ...Bala haholoanyane -
PCBA processing ke eng?
Ts'ebetso ea PCBA ke sehlahisoa se felileng sa boto e se nang letho ea PCB kamora patch ea SMT, tlhahlobo ea DIP plug-in le PCBA, tlhahlobo ea boleng le ts'ebetso ea kopano, e bitsoang PCBA. Mokha o tšepetseng o isa projeke ea ts'ebetso ho feme ea profeshenale ea PCBA, ebe e emela tlhahiso e felileng ...Bala haholoanyane -
Etching
PCB board etching process, e sebelisang mekhoa ea khale ea ho khetla ka lik'hemik'hale ho senya libaka tse sa sireletsoang. Mofuta o kang oa ho cheka foro, mokhoa o sebetsang empa o sa sebetse. Ts'ebetsong ea etching, e boetse e arotsoe ka mokhoa o motle oa filimi le mokhoa o mobe oa filimi. Mokhoa o motle oa filimi ...Bala haholoanyane -
Tlaleho e hatisitsoeng ea Boto ea Potoloho ea Global Market ea 2022
Libapali tse ka sehloohong 'marakeng oa boto ea potoloho ke TTM Technologies, Nippon Mektron Ltd., Samsung Electro-Mechanics, Unimicron Technology Corporation, Advanced Circuits, Tripod Technology Corporation, DAEDUCK ELECTRONICS Co.Ltd., Flex Ltd., Eltek Ltd, le Sumitomo Electric Industries. . Lefats'e...Bala haholoanyane -
1. Sephutheloana sa DIP
Sephutheloana sa DIP (Dual In-line Package), e tsejoang hape e le thekenoloji ea liphutheloana tse peli tsa marang-rang, e bua ka li-chips tsa potoloho tse kopaneng tse kentsoeng ka liforomo tse peli tsa mohala. Nomoro ka kakaretso ha e fete 100. DIP e pakiloeng ka CPU chip e na le mela e 'meli ea liphini tse lokelang ho kenngoa ka har'a sokete ea chip e nang le...Bala haholoanyane -
Phapang lipakeng tsa FR-4 Material le Rogers Material
1. Lintho tsa FR-4 li theko e tlaase ho feta Rogers 2. Lintho tsa Rogers li na le maqhubu a phahameng ha li bapisoa le lisebelisoa tsa FR-4. 3. The Df kapa dissipation factor ea FR-4 e phahame ho feta ea Rogers, 'me tahlehelo ea pontšo e kholoanyane. 4. Tabeng ea impedance stability, the Dk value range...Bala haholoanyane -
Ke hobane'ng ha u hloka sekoahelo ka khauta bakeng sa PCB?
1. Bokahohle ba PCB: OSP, HASL, HASL e se nang lead, Tin ea ho qoelisoa, ENIG, Silivera ea ho qoelisoa, Ho tšela khauta e thata, Ho tšela khauta bakeng sa boto kaofela, monoana oa khauta, ENEPIG… OSP: theko e tlase, e rekisoang hantle, maemo a thata a polokelo, nako e khuts'oane, theknoloji ea tikoloho, welding e ntle, e boreleli… HASL: hangata ke m...Bala haholoanyane -
Organic Antioxidant (OSP)
Liketsahalo tse sebetsang: Ho hakanngoa hore hoo e ka bang 25% -30% ea li-PCB ha joale li sebelisa ts'ebetso ea OSP, 'me karolo e ntse e eketseha (ho ka etsahala hore ts'ebetso ea OSP e se e fetile thini ea ho fafatsa le maemo a pele). Ts'ebetso ea OSP e ka sebelisoa ho li-PCB tsa theknoloji e tlase kapa li-PCB tsa theknoloji e phahameng, joalo ka single-si...Bala haholoanyane
