Mumakombuta memory memory modules uye makadhi emifananidzo, pane mutsara wegoridhe conductive contact pads, inowanzozivikanwa se "zvigunwe zvegoridhe." MuPCB dhizaini uye indasitiri yekugadzira, iyo PCB yegoridhe chigunwe (Gold Finger kana Edge Connector) inoreva chinongedzo chinoshandiswa seyekunze interface yePCB kuti ibatanidze kune ekunze zvishandiso. Muchikamu chino, tichaongorora dhizaini ye "chigunwe chegoridhe" muPCB uye tokurukura zvimwe zvakakosha zvekugadzira.
Mabasa uye Zvishandiso zveGoridhe Finger
Interconnect Point yeGoridhe Finger Kana maPCB anobatsira (akadai semakadhi emifananidzo kana mamodules ekuyeuka) akabatana nebhodhi reamai, vanozviita kuburikidza neslot, sePCI, ISA, kana AGP. Chigunwe chegoridhe chinoshanda senzvimbo yekubatanidza, ichibvumira kutapurirana kwezviratidzo pakati pemidziyo yekutenderera kana makadhi emukati nekombuta.
Special Adapter, Zvigunwe zvegoridhe, zvinogona kuwedzera kushanda kwebhodhi reamai nekubvumira PCB yechipiri kuti iiswe mairi. Semuenzaniso, ndangariro, makadhi emifananidzo, makadhi anonzwika, makadhi etiweki, uye mamwe makadhi anobatana kuburikidza neaya mapendero ekubatanidza. Aya makubatanidza anobatsira kufambisa emhando yepamusoro mifananidzo uye ruzha. Sezvo makadhi aya asingawanzo kubviswa kana kuiswazve, chigunwe chegoridhe chinowanzogara chakasimba kupfuura kadhi pacharo.
Kubatana Kwekunze kuburikidza neGoridhe Finger Zvekunze zvekunze senge masipika, subwoofers, scanner, maprinta, uye zviratidziro zvakabatana nebhodhi reamai kuburikidza nePCB "chigunwe chegoridhe." Aya ma peripheral akabairirwa mune chaiwo slots kuseri kwekombuta, senge HDMI, DisplayPort, VGA, kana DVI, iyo inozobatana nePCB yaamai.
Kugadzira Dhizaini Mafungidziro ePCB Goridhe Fingers
Dhizaini yeGoridhe Finger Bevel
- Safe Distance kubva kuEdge: Nhambwe iri pakati pemunwe wegoridhe nemupendero wePCB inofanirwa kutariswa zvichienderana nekukora kwebhodhi uye nekona yebevel ye "chigunwe chegoridhe." A common bevel angle is 45 degrees.
- Kana chigunwe chegoridhe chikaiswa padhuze nepamupendero webhodhi uye kuratidzwa kwemhangura kusingafadzi, zvigadziriso zvinofanirwa kuitwa kuti ive nechokwadi chinhambwe chakachengeteka pakati pechigunwe chegoridhe nemupendero wePCB kudzivirira kucheka mumhangura.
Soldermask Window Dhizaini
- Kufambisa kuiswa kwekadhi, nzvimbo yemunwe yegoridhe inofanira kuva nekuvhura mune soldermask. Kana zvisina kudaro, soldermask inki pakati pezvigunwe zvegoridhe inogona kuputika panguva yekudzokororwa kuisa, kudzivirira kubata kwakanaka ne slot.
- Iwindo remunwe wegoridhe kana nzvimbo yemunwe werata inofanira kuvhurwa yakati kurei kupfuura PCB mupendero (inenge gumi mils).
- Iwindo rinofanirawo kuva rakakura kudarika mutsara nemamita mana kune rumwe rutivi. Chenjerera kuti usafumura mhangura paunovhura hwindo; kana zvisina kudaro, mhangura inofanira kubviswa.
- Hapana mafafitera anofanirwa kuitwa akatenderedza chigunwe chegoridhe kana via iri idiki pane 2 mm.
Edge Processing yeBhodi Makona
- Kufambisa kuiswa kwekadhi, iyo PCB yekutaura padyo nechigunwe chegoridhe inofanira kunge yakavharika makona. Kuti kushandisa beveled kana makona akatenderedzwa zvinoenderana nedhizaini yaunofarira. Kana makona asina kubvongodzwa, kona yekurudyi inogona kukuvadza kadhi slot panguva yekuisa nekubvisa, zvichideredza kuvimbika kwechigadzirwa.
Copper Layer Dhizaini yeTraces
- Kuti zvive nyore kuisa, zviri nani kusaisa mhangura pamusoro pekunze kwenzvimbo yemunwe wegoridhe. Kana network dzakawanda dzichishandisa trace imwechete, copper layer inogona kubatanidza zvigunwe zvegoridhe zvakawanda, zvichiita kuti zviome kuisa kana kubvisa makadhi.
Dhizaini yeMarefu uye Mapfupi "Gold Fingers"
- Kune zvigunwe zvegoridhe zvirefu uye zvipfupi, iyo huru trace inofanirwa kunge iri 40 mils, yechipiri trace 20 mils, uye mapoinzi ekubatanidza 6 mils. Nhambwe pakati pe "chigunwe chegoridhe" pad uye 20 mil trace inofanira kuva 8 mils.
- Kana iyo huru trace ichipinda mubhodhi, inofanirwa kufambiswa uchishandisa diagonal mitsetse. Kana paine nhokwe hombe pedyo nechigunwe chegoridhe, mitsetse yacho inofanira kunge iine makona akatenderedzwa panzvimbo yemakona akapinza.
Panelization Design
- Kana iyo yegoridhe bhodhi saizi idiki pane 40 × 40 mm, bevel rinofanirwa kugadziriswa kutanga, richiteverwa nekugaya kwePCB rondedzero. CAM inofanirwa kugadzira maburi ekumisikidza kumativi ese ePCB kune yechipiri chinzvimbo. Iyo otomatiki bevel inofanirwa kuve nechokwadi kuti hupamhi hwemunwe wegoridhe hunosvika 40 mm.
- Pakuranga, chigunwe chegoridhe chinofanira kutariswa kunze, zvigunwe zvegoridhe zvakatarisa mukati kuti zvive nyore kuwedzera kwemagetsi egoridhe anotungamira.
Kugadzira Maitiro e "Gold Finger" PCB
Maitiro ekugadzira "Gold Fingers"
Maitiro ekugadzira "minwe yegoridhe" anosanganisira matanho akati wandei:
- Kugadzirira kwezvinhu
- Inner-layer imaging
- Inner-layer etching
- Inner-layer AOI (Otomatiki Optical Inspection)
- Brown oxidation (kubika)
- Nyoni
- Drilling
- Copper plating
- Board electroplating
- Outer-layer imaging
- Graphic electroplating
- Outer-layer etching
- Outer-layer AOI
- Soldermask kudhinda
- Soldermask mifananidzo
- Soldermask kuongorora
- Kudhinda kwehunhu
- Soldermask yechipiri kudhinda
- Soldermask yechipiri imaging
- Ndarama yakanamirwa pamifananidzo
- Electroplating zvigunwe zvegoridhe
- Surface QC kuongororwa
- Kubviswa kwemafirimu
- Outer-layer imaging (yechipiri pass)
- Kubudirira (second pass)
- Outer-layer etching (yechipiri pass)
- Kubvisa firimu
- azvikuya
- Beveling yeminwe yegoridhe
- Kuongororwa kwemagetsi
- Kuongorora kwekupedzisira
- Shipping
CAM Muripo
- For multi-layer PCBs neminwe yegoridhe, iyo yemukati-yakapetwa ukobvu hwemhangura pedyo nenzvimbo yeminwe yegoridhe inofanira kuva 80 mils yezvigadzirwa zvemazuva ose uye 40 mils yezvigadzirwa zvemaziso kana zvekuyeuka.
- Kune madhizaini asina zvigunwe zvegoridhe, asi panodiwa beveling, mhangura yemhangura inofanirawo kutevedzera mitemo yakafanana neyezvigunwe zvegoridhe.
- Kutevedza upamhi hweminwe yegoridhe inotungamira kunofanirwa kuita 12 mils, nekugona ikozvino kwemunwe wegoridhe kuita 40 mils.
- Kune zvigadzirwa zvemaziso uchishandisa goridhe chigunwe process (goridhe plating + edge zvibatanidza), hapana muripo unoiswa kune padhi traces. Nhambwe kubva pachigunwe chegoridhe kusvika kumucheto kwePCB inofanira kunge iine 0.5 mm. Kana iyo bhodhi kushivirira kushivirira kuri +/- 0.1 mm, mhangura inofanira kuwedzerwa munzvimbo yakapoteredza nzvimbo yemunwe wegoridhe kuti iite kuti penalization, uye maburi asina simbi e 0.4 mm anofanirwa kuwedzerwa pamakona echikamu che "gold finger".
