Tataiso ea Moralo le Tlhahiso ea PCB ea Teko ea Semiconductor

Selelekela

PCB ea teko ea semiconductor e sebetsa e le sebopeho sa bohlokoa pakeng tsa lisebelisoa tsa semiconductor le lisebelisoa tsa liteko tse iketsang nakong ea mekhahlelo e fapaneng ea liteko. Liboto tsena tsa potoloho tse khethehileng tse hatisitsoeng li nolofalletsa khokahano ea motlakase, phetiso ea lets'oao, le tsamaiso ea mocheso nakong eohle ea lits'ebetso tsa netefatso ea sesebelisoa.

Mmaraka oa PCB oa tlhahlobo ea semiconductor o kenyelletsa mekhahlelo e meraro ea mantlha: Liboto tsa Burn-In bakeng sa tlhahlobo ea ho ts'epahala tlas'a mocheso o phahameng, li-PCB tsa Probe Card bakeng sa tlhahlobo ea boemo ba wafer, le Load Boards bakeng sa tlhahlobo ea sephutheloana ea ho qetela lits'ebetsong tsa ATE. Ha liphutheloana tsa semiconductor li ntse li tsoela pele ho lebisa ho sesupo se phahameng le lebelo le potlakileng, ts'ebetso ea boto ea liteko e ama ka kotloloho litefiso tsa tlhahiso, ho nepahala ha liteko, le katleho ea tlhahiso ka kakaretso.

Mefuta ea Li-PCB tsa Teko ea Semiconductor

Li-Bun-In Boards (BIB)

Burn-In Boards e beha lisebelisoa tsa semiconductor ho potlakisa maemo a khatello ea maikutlo, hangata e sebetsa mochesong o pakeng tsa 125°C le 150°C ka nako e telele. Liboto tsena tsa liteko tsa semiconductor li tlameha ho boloka botsitso ba motlakase ha li ntse li mamella libaesekele tse futhumetseng le khatello ea mochini. Moralo o etelletsa pele katoloso ea mocheso le lisebelisoa tsa liteko, botsitso ba thepa ea mocheso o phahameng, le bokhoni ba tlhahlobo ea libaka tse ngata ho eketsa ts'ebetso nakong ea tlhahlobo ea ts'epo.

Probe Card PCBs

Li-PCB tsa Probe Card li fana ka motheo oa mochini le tsela ea motlakase bakeng sa linale tsa probe tse amanang le li-wafers tsa semiconductor nakong ea tlhahlobo. Liboto tsena li hloka botsitso bo ikhethang ho boloka boemo bo nepahetseng ba lipatlisiso, hangata ka har'a mamello ea boemo ba micron. Moralo o totobatsa phetisetso ea mats'oao a tahlehelo e tlase bakeng sa tlhahlobo ea maqhubu a holimo, litsela tse laoloang tsa impedance, le katoloso e nyane ea mocheso ho boloka ho nepahala ha puisano ho pholletsa le phapang ea mocheso.

Liboto tsa Meroalo

Khokahano ea Load Boards lipakeng tsa lisebelisoa tse pakiloeng tsa semiconductor le lisebelisoa tsa tlhahlobo tsa othomathike, tse fetolelang lisebelisoa tsa liteko tsa ATE ho lipeakanyo tse ikhethileng tsa phini. Li-PCB tsena tsa tlhahlobo ea semiconductor li sebetsana le matšoao a dijithale a lebelo le holimo, litekanyo tse nepahetseng tsa analoge, le phano ea matla ka nako e le 'ngoe. Moqapi o shebane le ho boloka botšepehi ba matšoao, marang-rang a lekaneng a kabo ea matla, ho tšepahala ho socketing bakeng sa lipotoloho tse likete tsa ho kenya, le tsamaiso ea mocheso bakeng sa lisebelisoa tse hlahisang mocheso o moholo nakong ea tlhahlobo ea ts'ebetso.

Melao ea Moralo bakeng sa li-PCB tsa Teko ea Semiconductor

Litlhoko tsa Botšepehi ba Letšoao

Moralo oa PCB oa lebelo le holimo o hloka lithapo tsa phetiso ea impedance tse nang le mamello hangata ka har'a ± 10%. Litsela tse fapaneng tse fapaneng li boloka sebaka se sa fetoheng le ho hokahana ho pholletsa le tsela ea matšoao, ha mesaletsa ea balebeli kapa lifofane tse fatše li fokotsa ho kopana lipakeng tsa liteishene tse haufi. Matshwao a bohlokoa a hloka bolelele bo bapisitsoeng ka har'a 0.5mm bakeng sa lits'ebetso tse sa tsotelleng nako, 'me ka liphetoho li tlameha ho boloka ts'ebetso ea ts'ireletso ka boholo bo nepahetseng ba anti-pad.

Tsamaiso ea Thermal hloko ea

Meralo ea boto ea ho chesoa e kenyelletsa papiso ea mocheso ho bolela esale pele libaka tse chesang le ho netefatsa tšebelisano ea katoloso ea mocheso le likopano tsa socket. Khetho ea thepa e shebane le coefficient e tlase ea katoloso ea mocheso, hangata e ka tlase ho 16 ppm/°C, ho fokotsa ntoa nakong ea ts'ebetso ea mocheso o phahameng. Thermal vias ka tlas'a lisebelisoa tse matla a phahameng a matlafatsa ho qhalana ha mocheso, ha botenya ba koporo bo eketseha ho fihla ho 2-3 oz likarolong tsa kabo ea matla bo ntlafatsa bokhoni ba hona joale ba ho sebetsana le mocheso.

Litekanyetso tsa Khetho ea Lintho

Mapolanka a teko ea semiconductor a sebelisa li-laminate tse sebetsang hantle tse nang le mocheso oa phetoho ea khalase o fetang 170°C bakeng sa lits'ebetso tsa ho chesoa. Lisebelisoa tse nang le tahlehelo e tlase joalo ka Megtron, laminate e khethehileng e nang le tahlehelo e tlase, kapa li-substrate tsa Isola li tšehetsa phetiso ea lets'oao la maqhubu a phahameng ka lintlha tsa ho qhalana ka tlase ho 0.01 maqhubung a GHz. Ts'ebetso ea ho hlophisa li-layer stackup e leka-lekanya litlhoko tsa lera la lets'oao, kabo ea sefofane sa motlakase, le lithibelo tsa boto ka kakaretso ha li ntse li boloka litekanyo tsa likarolo tse ka hlahisoang.

Lintlha tsa Tlhahiso bakeng sa Li-PCB tsa Teko ea Semiconductor

Litlhoko tsa ho sebetsa ka mokhoa o nepahetseng

Tlhahiso ea PCB ea tlhahlobo ea semiconductor e hloka mamello e matla ho feta liboto tse tloaelehileng tsa khoebo. Mehaho e tsoetseng pele e sebelisa litšoantšo tse tobileng tsa laser bakeng sa mohlala oa line-line le tlhaloso e nepahetseng ea likarolo. Bokhoni ba bohlokoa ba ho etsa thepa bo kenyelletsa:

• Litlhaloso tse fokolang tsa mohlala - Bophara ba mela le sebaka se theohelang ho 75 μm se tšehetsa litlhoko tsa litsela tse ngata haholo.
• Ka mokhoa o nepahetseng oa ho cheka - Ho nepahala ha maemo ka har'a ± 50 μm ho netefatsa likhokahano tse tšepahalang ho li-stackups tsa multilayer.
• Taolo ea ngoliso ea lera - Mamello ea ho lumellana ka har'a 75 μm e boloka ka botšepehi ho pholletsa le meaho ea 12+.

Khetho ea Qetello ea Bokaholimo

Khetho ea ho qeta holim'a bokaholimo e leka-lekanya bokhoni ba ho solder, ho hanyetsa ho kopana, le litlhoko tsa ho tšoarella bakeng sa lits'ebetso tsa liteko tsa semiconductor. Khauta ea ho Immersion ea Nickel e se nang motlakase e fana ka ho ba bataletse ho hoholo bakeng sa likarolo tse nang le molumo o mosesaane le lipotoloho tse ngata tsa ho phalla hape. Organic Solderability Preservative e fana ka melemo ea litšenyehelo bakeng sa likopano tse bonolo, ha plating ea khauta e thata menoaneng ea ho kopana e netefatsa ho hanyetsa ho tsofala bakeng sa li-socket tsa boto ea mojaro, hangata e bonts'a li-microinch tse 30-50 tsa khauta holim'a poleiti ea nickel.

Mekhoa ea ho Laola Boleng

Liprothokholo tse felletseng tsa tlhahlobo li netefatsa boleng ba PCB ea tlhahlobo ea semiconductor pele e romelloa. Tlhahlobo e ikemetseng ea optical e netefatsa geometry ea trace, ngoliso ea mask ea solder, le boleng ba ho qeta bokaholimo. Tlhahlobo ea X-ray e lekola kahare ka sebopeho le tatellano ea lera libotong tse rarahaneng tsa multilayer, ha tlhahlobo e fofang e netefatsa khokahanyo ea motlakase ntle le litlhophiso tsa tloaelo. Litekanyo tsa tlhahlobo ea marang-rang li tiisa taolo ea ho se sebetse litseleng tsa matšoao a bohlokoa, 'me thuto ea ho palama baesekele e futhumatsang e etsisa maemo a ho chesa ho netefatsa ts'epo ea sebopeho.

Mathata a Tloaelehileng le Litharollo ho Semiconductor Test PCB Design

Taolo ea Khatello ea Mocheso

Ts'ebetso ea mocheso o phahameng e baka katoloso e fapaneng lipakeng tsa thepa ea boto, likarolo, le li-socket, e leng se lebisang ho warpage le khatello ea mechini. Litharollo li kenyelletsa moralo oa stackup o lekanang, khetho ea thepa e nang le li-coefficients tsa katoloso ea mocheso tse tsamaellanang, le matlafatso ea mechini ka li-cores tse teteaneng kapa li-stiffener tsa tšepe. Ntlafatso ea boto ea boto e leka-lekanya litlhoko tsa ho tiea khahlanong le lintho tse nahanoang ka boima ba mocheso bakeng sa potoloho e potlakileng ea mocheso lits'ebetsong tsa ho chesa.

Leqephe lena ke la lisebelisoa tsa PCB tsa liteko tsa semiconductor, libaka tsa sokete, thepa le lintlha tsa tlhahiso. Bakeng sa mekhoa e akaretsang ea liteko, sebelisa tataiso ea tlhahlobo ea boto ea potoloho ; bakeng sa ho tsoela pele, ho itšehla thajana, le netefatso ea boto e se nang letho, kenyelletsa litlhoko tsa liteko tsa motlakase tsa PCB.

Letšoao la Botšepehi Optimization

Phetisetso ea mats'oao a lebelo le phahameng e tobana le tahlehelo e tsoang ho ho monya ha dielectric, phello ea letlalo, le ho se tsoelepele ha impedance ho fetoha ha likarolo. Mekhoa ea ho fokotsa moralo bakeng sa li-PCB tsa tlhahlobo ea semiconductor e kenyelletsa:

• Litsela tse khuts'oane tsa litsela - Bolelele bo fokotsehileng bo fokotsa ho khutsufatsoa ha lets'oao le nako ea nako.
• Netefatso ea taolo ea impedance - Ketsiso ea motlakase e tiisa ts'ebetso ea mohala oa phetisetso pele o etsoa.
• Ka mekhoa ea ho ntlafatsa - Ho cheka ka morao ho tlosa li-stub resonances tse nyenyefatsang boleng ba matšoao a holimo.
• Ts'ebetsong ea lipontšo tse fapaneng - E fokotsa ts'oaetso ea lerata e tloaelehileng libakeng tse telele tsa litsela.

Socket Interface Tšepahala

Likopano tsa Load board socket li na le ts'ebetso ea mochini, ho senyeha ha mehala le mathata a ho tsamaisana le liteko tse likete. Litharollo li kenyelletsa barekisi ba li-socket mathoasong a ts'ebetso ea moralo le ho fana ka botenya bo lekaneng ba boto ka tlas'a libaka tsa sokete.

Likarolo tsa ho tsamaisana ka nepo li netefatsa hore sesebelisoa se lula se phetoa ha hardware ea ho hapa e sireletsa lisebelisoa nakong ea liteko. Li-protocol tsa kamehla tsa tlhokomelo bakeng sa ho hloekisa le ho nkela sebaka sebaka li eketsa bophelo ba ts'ebetso ea socket libakeng tsa tlhahiso.

fihlela qeto e

Moralo le tlhahiso ea PCB ea tlhahlobo ea semiconductor e hloka boiphihlelo bo ikhethang bo mabapi le moralo oa potoloho ea maqhubu a holimo, tlhahlobo ea mocheso, le lits'ebetso tse nepahetseng tsa ho qapa. Katleho e ipapisitse le ho utloisisa litlhoko tse ikhethileng tsa liboto tse cheleng, li-PCB tsa likarete tsa probe, le liboto tsa thepa ha o ntse o kenya tšebetsong melao e nepahetseng ea moralo le taolo ea tlhahiso bakeng sa litharollo tse tšepahalang tsa tlhahlobo ea semiconductor.

Highleap Electronics e fana ka bokhoni bo felletseng ba tlhahlobo ea semiconductor ea PCB:

• Tšehetso ea boenjiniere - Therisano ea moralo bakeng sa botšepehi ba matšoao, taolo ea mocheso, le ntlafatso ea khetho ea thepa.
• Tlhahiso e nepahetseng ea PCB - Mekhoa e tsoetseng pele ea ho etsa maqheka e kopana le mamello e tiileng bakeng sa bophara ba mohala, ka ho ngolisa, le taolo ea impedance.
• Netefaletso ea boleng - Liprothokhole tse felletseng tsa tlhahlobo ho kenyelletsa AOI, X-ray, tlhahlobo ea motlakase, le mangolo a thuto ea mocheso.
• Litšebeletso tsa Kopano ea PCB - Ho beoa ha likarolo, ho kopanya li-socket, le tlhahlobo ea ts'ebetso bakeng sa tharollo ea turnkey.

Ikopanye le Highleap Electronics ho buisana ka litlhoko tsa PCB tsa liteko tsa semiconductor le ho fumana hore na boiphihlelo ba rona bo tšehetsa lits'ebetso tsa liteko tse boima joang.