Kedu ihe kpatara ịchọrọ mkpuchi na ọla edo maka PCB?

1. N'elu PCB: OSP, HASL, HASL-free Lead, Immersion Tin, ENIG, Immersion Silver, Hard gold plating, Plating gold for dum board, gold finger, ENEPIG...

OSP: ọnụ ala dị ala, ezigbo solderability, ọnọdụ nchekwa siri ike, obere oge, teknụzụ gburugburu ebe obibi, ịgbado ọkụ dị mma, ire ụtọ…

HASL: ọ na-abụkarị HDI PCB Samples (4 – 46 layers), ejirila ọtụtụ nnukwu nkwukọrịta, kọmpụta, akụrụngwa ahụike na ụlọ ọrụ ikuku na ngalaba nyocha.

Mkpịsị aka ọla edo: ọ bụ njikọ dị n'etiti oghere ebe nchekwa na mgbawa ebe nchekwa, a na-eziga akara niile site na mkpịsị aka ọla edo.

Mkpịsị aka ọla edo nwere ọtụtụ kọntaktị na-eduzi ọla edo, nke a na-akpọ "mkpịsị aka ọla edo" n'ihi elu ha nwere ọla edo na nhazi ha yiri mkpịsị aka. Mkpịsị aka ọla edo na-eji usoro pụrụ iche were ọla edo kpuchie mkpuchi ọla kọpa, nke na-eguzogide oxidation nke ukwuu ma na-eduzi ya nke ukwuu. Ma ọnụ ahịa ọla edo dị oke ọnụ, a na-eji tin plating ugbu a dochie ebe nchekwa karịa. Site na narị afọ gara aga 90 s, ihe tin malitere ịgbasa, motherboard, ebe nchekwa na ngwaọrụ vidiyo dị ka "mkpịsị aka ọla edo" fọrọ nke nta ka ọ bụrụ mgbe niile ka ejiri ihe tin mee ihe, naanị ụfọdụ ngwa ihe nkesa na-arụ ọrụ dị elu / ngwa ọrụ ga-akpọtụrụ iji gaa n'ihu. omume nke iji ọla edo edo edo, yabụ ọnụahịa ahụ nwere ntakịrị ọnụ.

  1. Gịnị kpatara ejimbadamba ọla edo?

Site na ntinye nke IC dị elu na elu, ụkwụ IC na-abawanye ụba. Ezie na vetikal ịgbado ọkụ usoro siri ike ịfụ ezi ịgbado ọkụ mpe mpe akwa, nke na-eweta ihe isi ike arịọnụ SMT; Na mgbakwunye, ndụ shelf nke efere ịgba agba agba dị mkpụmkpụ. Agbanyeghị, efere ọla edo na-edozi nsogbu ndị a:

1.) N'ihi na elu ugwu technology, karịsịa maka 0603 na 0402 ultra-obere table ugwu, n'ihi na flatness nke ịgbado ọkụ na mpe mpe akwa na-metụtara kpọmkwem àgwà nke solder mado obibi akwụkwọ, na azụ nke re-eruba ịgbado ọkụ àgwà nwere. a bụrụkwa mmetụta, ya mere, dum efere gold plating na elu njupụta na ultra-obere table ugwu technology na-emekarị hụrụ.

2.) Na mmepe na-adọ, mmetụta nke ihe ndị dị otú ahụ dị ka components procurement bụ mgbe bụghị osisi na ịgbado ọkụ ozugbo, ma ọtụtụ mgbe nwere na-echere a izu ole na ole ma ọ bụ ọbụna ọnwa tupu ojiji, shelf ndụ nke gold plated osisi bụ ogologo karịa terne. metal ọtụtụ ugboro, ya mere onye ọ bụla dị njikere ịmụta. E wezụga nke ahụ, PCB nwere ọla edo na ogo nke ọnụ ahịa ogbo nlele ma e jiri ya tụnyere efere pewter

3.)

4.) Ma na ọtụtụ na-enwekwu ok wiring, akara obosara, spacing erutela 3-4MIL

Ya mere, ọ na-eweta nsogbu nke obere sekit nke waya ọla edo: na-arịwanye elu nke mgbaàmà, mmetụta nke nnyefe mgbaàmà na ọtụtụ mkpuchi n'ihi mmetụta akpụkpọ ahụ na-aghọwanye ihe doro anya.

(mmetụta akpụkpọ : High ugboro alternating ugbu a, ugbu a ga-agbasasị itinye uche n'elu nke waya eruba. Dị ka ngụkọta oge, akpụkpọ omimi metụtara ugboro.)

  1. Gịnị kpatara ejiimmersion gold PCB?

Enwere ụfọdụ njirimara maka ihe ngosi PCB ọla edo nke imikpu dị ka n'okpuru:

1.) Ọdịdị kristal kpụrụ site n'imikpu ọla edo na ọla edo dị iche iche, agba nke ọla edo nmikpu ga-adị mma karịa ntinye ọla edo na onye ahịa nwere afọ ojuju. Mgbe ahụ, nrụgide nke efere ọla edo a na-agbanye n'ime mmiri na-adị mfe ịchịkwa, nke na-enye aka na nhazi nke ngwaahịa. N'otu oge ahụ kwa n'ihi na ọla edo dị nro karịa ọla edo, ya mere efere ọla edo adịghị eyi - mkpịsị aka ọla edo na-eguzogide.

2.) Immersion Gold dị mfe iji weld karịa ọla edo, ọ gaghị eme ka ịgbado ọkụ na-adịghị mma na mkpesa ndị ahịa.

3.) A na-ahụ ọla edo nickel naanị na mpempe ịgbado ọkụ na ENIG PCB, nnyefe mgbaàmà na mmetụta anụ ahụ dị na oyi akwa ọla kọpa, nke na-agaghị emetụta akara ngosi, anaghịkwa eduga mkpụmkpụ-circuit maka waya ọla edo. A na-ejikọta soldermask na sekit ahụ na akwa ọla kọpa.

4.) The crystal Ọdịdị nke imikpu gold bụ denser karịa gold plating, o siri ike na-emepụta ọxịdashọn.

5.) A gaghị enwe mmetụta na oghere mgbe a na-akwụ ụgwọ

6.) Ịdị larịị na ndụ ọrụ nke efere ọla edo dị mma dị ka nke efere ọla edo.

 

  1. Immersion Gold VS Gold plating

 

Enwere ụdị teknụzụ plating ọla edo abụọ: otu bụ plating ọla edo, nke ọzọ bụ Immersion Gold

 

Maka usoro ntinye ọla edo, mmetụta nke tin na-ebelata nke ukwuu, na mmetụta nke ọla edo ka mma; Ọ gwụla ma onye nrụpụta chọrọ njikọ ahụ, ma ọ bụ ugbu a, ọtụtụ ndị na-emepụta ga-ahọrọ usoro ịgbanye ọla edo!

N'ozuzu, elu ọgwụgwọ PCB nwere ike kewara n'ime ndị na-esonụ ụdị: gold plating (electroplating, immersion gold), silver plating, OSP, HASL (na na-enweghị ụzọ), nke bụ tumadi maka FR4 ma ọ bụ CEM-3 efere, akwụkwọ isi. ihe na rosin mkpuchi elu ọgwụgwọ; Na tin ogbenye (eri tin ogbenye) nke a ma ọ bụrụ na mwepụ nke mado emepụta na ihe nhazi ihe kpatara ya.

Enwere ụfọdụ ihe kpatara nsogbu PCB:

  1. N'oge a na-ebi akwụkwọ PCB, ma enwere ihe nkiri na-ekpuchi mmanụ na PAN, ọ nwere ike igbochi mmetụta nke tin; enwere ike ịnwapụta nke a site n'ule nlegharị anya n'elu mmiri

  2. Ma embellish ọnọdụ nke PAN nwere ike izute imewe chọrọ, ya bụ, ma ịgbado ọkụ na mpe mpe akwa nwere ike iji hụ na nkwado nke akụkụ.

  3. Ihe mgbochi ịgbado ọkụ adịghị emerụ, nke enwere ike tụọ ya site na mmetọ ion; t

Banyere elu:

Gold plating, ọ nwere ike ime PCB nchekwa oge ogologo, na site n'èzí gburugburu ebe obibi okpomọkụ na iru mmiri mgbanwe bụ obere (tụnyere ndị ọzọ n'elu ọgwụgwọ), n'ozuzu, nwere ike ịchekwa ihe dị ka otu afọ; HASL ma ọ bụ na-edu free HASL n'elu ọgwụgwọ nke abụọ, OSP ọzọ, abụọ n'elu ọgwụgwọ na gburugburu ebe obibi okpomọkụ na iru mmiri nchekwa oge ịṅa ntị na ọtụtụ nke

N'okpuru ọnọdụ nkịtị, ọgwụgwọ elu ọlaọcha dị ntakịrị dị iche iche, ọnụahịa ahụ dịkwa elu, ọnọdụ nchekwa na-achọsi ike karị, ọ dị mkpa ka ị ghara iji nhazi ngwugwu sọlfọ ọ bụla! Ma debekwa ya ihe dị ka ọnwa atọ! Na tin mmetụta, gold, OSP, tin ịgba bụ n'ezie banyere otu ihe ahụ, emepụta na-tumadi na-atụle na-eri arụmọrụ!