PCB Silkscreen inozivikanwawo se "silk screen" muindasitiri. PCB sirika sikirini inogona kuoneka pane zvakajairika PCB mabhodhi, saka ndeapi mabasa ePCB sirika skrini?
1. Kuziva Electronic Components
Sezvatinoziva tese, kune zvisingaverengeki zvemagetsi zvikamu. Iyo sirika sikirini Silkscreens paPCB bhodhi inoshandiswa kuona kuti ndeapi emagetsi zvikamu zvakaiswa pane imwe neimwe pad.
2. SMT Gungano
SMT inounganidza zvigamba kuburikidza nesiriki skrini Silkscreens. PCB silk screen Silkscreens inobatsira fekitori kuona nhamba dzenzvimbo dzechikamu chimwe nechimwe panguva yekupeta.
3. Product Repair
PCB silk screen Silkscreens inobatsirawo pakugadzirisa chigadzirwa. Vanotungamira vashandi vekugadzirisa mukutsvaga nzvimbo inoenderana yechikamu chimwe nechimwe.
4. Product Identification
Pamusoro pekuzivikanwa kwechikamu, PCB silk screen Silkscreens inogona kusanganisira rumwe ruzivo rwakakosha, senge zita rechigadzirwa, mugadziri welogo, UL mamaki, makodhi ekutenderera, uye mamwe macode ekuzivikanwa.
DFM Dhizaini ye PCB Silkscreen
Mainjiniya anonyanya kutarisisa pane kutendeseka kwesimba uye chiratidzo chekuvimbika panguva yekuronga maitiro. Nekudaro, kugadzirwa kweSilkscreens kunowanzo furatirwa. Semuyenzaniso, Silkscreens inogona kupindirana nema solder pads, ayo anogona kuomesera PCB kuenderera mberi bvunzo uye chikamu chekutengesa. Kana Silkscreen dhizaini iri diki zvakanyanya, inogona kutungamirira kumatambudziko mukudhinda skrini; kana yakakura, Silkscreens inogona kupindirana uye kuoma kusiyanisa.
1. Kureba pakati peSirika Screen uye Pad
Silk screen Silkscreens inofanirwa kunge iri 3-6 mils kubva kune solder mask hwindo pad nekuti pane nguva dzose kutsauka panguva yekudhinda sirika skrini. Kana sirika skrini Silkscreens yakadhindwa padhi, inofanirwa kufambiswa kudzivirira kukanganisa welding mhando, uye zvichigona kuita kuti padhi isabatike.
2. Silk Screen Line Width
Mutsetse wemutsara unoreva chete kukora kwemitsara yega yega yeSilkscreens, kwete hupamhi hwese hweSilkscreen yese. Kana hupamhi hwemutsara hwakanyanya kudiki, iyo inki haigone kuiswa zvakanaka, zvichitungamira kune isina kukwana kana kushaikwa silkscreen Silkscreen.
3. Linear White Ink Block
Kana sirika sikirini Silkscreen ine mitsetse, isina kukwana mutsara upamhi inogona kuita kuti Silkscreen ioneke sebhuroko hombe. Munguva yekudhirowa kwemifananidzo, upamhi hwemutsara huchave hwakanyanya kugadzira mufananidzo wakakodzera, zvichikonzera kuti sirika yese skrini isiiwe.
4. Silk Screen Silkscreen Spacing
Silkscreen blurring inogona kuitika nekuda kwezvikonzero zviviri: iyo Silkscreen mutsara wakafara zvakanyanya kana nzvimbo pakati peSilkscreens idiki zvakanyanya. Chero zvazvingaitika, maSilkscreens anozobatana kuita bundu, zvichiita kuti aite kunge asina kujeka uye asina kujeka.
5. Silk Screen Silkscreen urefu
Silkscreen kureba kunoreva kureba kwese kweSilkscreen. Muganho wehudiki hurefu ndeye 25 ms. Kana iyo Silkscreen kureba isingasviki 25 mils, sirika sikirini haizove yakajeka, uye iyo Silkscreens inogona kuoneka seyakasimba block yeinki.
6. Zvisina kujeka Silk Screen Markings
Paunenge uchigadzira maQR macode kana mabarcode paPCB, kutarisirwa kwakanyanya kunofanirwa kutorwa kuti utarise kugona kwekugadzira. Kana mukaha uripakati pezvinhu uri diki zvakanyanya, sirika sikirini inogona kudzima, ichiita maQR macode kana mabarcode kusaverengeka uye kudzivirira kuongorora.
PCB Silkscreen Production Process
PCB Silkscreen inowanzo chena, nhema, kana yero. Kusarudzwa kwemavara kunoenderana nemuvara we solder mask. Semuenzaniso, kana iyo solder mask iri nhema, girini, kana bhuruu, ingi chena inoshandiswa kune Silkscreens. Kana iyo solder mask iri mafuta matema, inki nhema inoshandiswawo kune Silkscreens, sekushandisa iwo mavara akafanana kunoita kuti Silkscreens zviome kuziva.
1. Silkscreen Kukwanisa Kuita
Iko kugona kugadzira silk screen Silkscreens zvakare ine hukama nehukobvu hwemhangura. Mhangura yakakora inoda yakakwira Silkscreen zvinodiwa nekuti iyo foil yemhangura inogona kunge iine misiyano yehurefu painopindirana neiyo substrate. Idzi nzvimbo dzisina kuenzana dzinogona kukonzera blurred sirika screen kudhinda.
- Kana iyo base yemhangura ukobvu iri 12-18 µm, iyo yepakati mutsara hupamhi ndeye 4.5 mils, uye hushoma Silkscreen kureba ndeye 25 mils.
- Kana iyo base yemhangura ukobvu iri 35 µm, iyo yepakati mutsara hupamhi i5 mils, uye hushoma Silkscreen kureba imakumi matatu mils.
- Kana iyo base yemhangura ukobvu iri 70 µm, iyo yepakati mutsara hupamhi i6 mils, uye hushoma Silkscreen kureba imakumi matatu mils.
- Kune isina kunaka Silkscreens (reverse mhedzisiro), iyo shoma mutsara hupamhi ndeye ≥8 mils, uye hushoma inki hupamhi ndeye> 5 mils.
2. Silkscreen Kugadzirisa paPad
Silkscreens inofanirwa kubviswa padhi kuti ive nechokwadi chekuti bhodhi rinotengeswa. Paunenge uchigadzirisa kana kufambisa Silkscreens, zvakakosha kuti usashandure polarity yeSilkscreen furemu, sezvo izvi zvinogona kudzosera polarity yezvikamu.
3. Kunzvenga Zvisina Kukwana Silkscreens
Pamarata mahombe (kana goridhe) epamusoro, edza kufambisa Silkscreens pane kuacheka, kuchengetedza kuzivikanwa kwakajeka. Neimwe nzira, bvumidza maSilkscreens kuti arambe ari parata kana goridhe pamusoro, uye ive nechokwadi chekuti maitiro acho anoshandisa tin kana kunyudza goridhe kutanga, ichiteverwa nekuongororwa silika kweSilkscreens.
4. Silkscreen Positive uye Negative Processing
Yepamusoro-layer Silkscreens inofanirwa kuratidza seyakanaka, nepo pasi-layer Silkscreens inofanirwa kuratidza senge reverse (negative). Kana aya mamiriro asina kusangana, girazi kugadzirisa kunodiwa. Semuenzaniso, kana iyo yepasi layer Silkscreens yakanaka, inofanirwa kuita girazi kugadzirisa kudzivirira kudzoreredzwa Silkscreens muPCB yekupedzisira.
5. Negative Firimu (Negative Silkscreen) Kugadzirisa
Paunenge uchigadzira zvisina kunaka Silkscreens, iyo inki haigone kuiswa pamapedhi kana mumakomba. Iyo solder mask chena mafuta block inofanira kunge iri 10 mils kana kupfuura kune rimwe divi. Kune vias, mafuta ekuvhara anofanira kunge ari 4 mils kana kupfuura kune rimwe divi. Iyo nzvimbo pakati peSilkscreens inofanira kunge yakakura kupfuura 5 mils, uye upamhi hwemutsara hunofanira kudarika 8 mils.
6. Logo uye Identification Code Kuwedzera
Paunenge uchiraira PCB kugadzira uye uchida kuwedzera macode ekuzivikanwa (sekutenderera, logo, UL kodhi, giredhi retardant giredhi, anti-static, uye masikirwo ekudzivirira kwezvakatipoteredza), vashandisi vanofanirwa kutsanangura zvakajeka kuti kupi uye ndeapi mamakisi ekuwedzera kudzivirira kunetsana nemagadzirirwo ebhodhi refekitori.
