Tsab ntawv luam tawm Circuit Board RED solder mask castellated qhov
Khoom Specification:
Khoom siv hauv paus: | FR4 TG 140 |
PCB Thickness: | 1.0 +/- 10% mm |
Txheej suav: | 4L |
Copper Thickness: | 1/1/1/1 oz |
Kev kho deg: | ENIG 2U" |
Solder Mask: | Glossy liab |
Silkscreen: | Dawb |
Cov txheej txheem tshwj xeeb: | Pth ib nrab qhov ntawm ntug |
Daim ntawv thov
Cov txheej txheem ntawm plated ib nrab qhov yog:
1. txheej txheem ib nrab-sab qhov nrog ob V-shaped txiav cuab yeej.
2. Lub laum thib ob ntxiv cov lus qhia ntawm lub qhov ntawm sab ntawm lub qhov, tshem tawm cov tawv nqaij ua ntej, txo cov burrs, thiab siv cov groove cutters es tsis txhob xyaum ua kom zoo dua qhov ceev thiab poob ceev.
3. Muab tooj liab rau electroplate lub substrate, yog li ntawd ib txheej ntawm tooj liab yog electroplated rau ntawm lub qhov phab ntsa ntawm lub round qhov nyob rau ntawm ntug ntawm lub rooj tsavxwm.
4. Kev tsim cov txheej txheej txheej tom qab lamination, raug, thiab kev loj hlob ntawm lub substrate nyob rau hauv ib theem zuj zus, lub substrate yog raug mus rau theem nrab tooj liab plating thiab tin plating, thiaj li hais tias cov tooj liab txheej nyob rau hauv lub phab ntsa ntawm lub puag ncig lub qhov nyob rau ntawm ntug ntawm lub rooj tsavxwm yog thickened thiab tooj liab txheej yog them nrog ib tug tin txheej rau corrosion kuj;
5. Ib nrab-qhov sib sau txiav lub qhov puag ncig ntawm ntug ntawm lub rooj tsavxwm hauv ib nrab los ua ib nrab-qhov;
6. Nyob rau hauv cov kauj ruam ntawm kev tshem tawm cov yeeb yaj kiab, cov yeeb yaj kiab los tiv thaiv electroplating nias thaum lub sij hawm nias cov txheej txheem yog tshem tawm;
7. Etching lub substrate yog etched, thiab cov tooj liab raug rau ntawm txheej txheej ntawm substrate raug tshem tawm los ntawm etching;
8. Tin stripping lub substrate yog stripped ntawm tin, thiaj li hais tias cov tin nyob rau hauv ib nrab-qhov phab ntsa yuav raug tshem tawm, thiab cov tooj liab txheej nyob rau hauv ib nrab-qhov phab ntsa yog nthuav.
9. Tom qab sib sau, siv daim kab xev liab los lo rau cov pawg thawj coj saib ua ke, thiab tshem tawm cov burrs los ntawm kab alkaline etching.
10. Tom qab qhov thib ob tooj liab plating thiab tin plating ntawm lub substrate, lub puag ncig lub qhov ntawm lub ntug ntawm lub rooj tsavxwm yog txiav nyob rau hauv ib nrab los ua ib tug ib nrab qhov, vim hais tias cov tooj liab txheej ntawm lub qhov phab ntsa yog them nrog ib tug tin txheej, thiab lub tooj liab txheej ntawm lub qhov phab ntsa yog kiag li tag nrog cov tooj liab txheej ntawm txheej txheej ntawm lub substrate kev twb kev txuas, uas muaj zog bonding quab yuam, yuav zoo tiv thaiv cov tooj liab. txheej ntawm lub qhov phab ntsa los ntawm raug rub tawm los yog tooj liab warping thaum txiav;
11. Tom qab ib nrab-qhov tsim tiav, cov yeeb yaj kiab raug tshem tawm thiab tom qab ntawd etched, kom cov tooj liab nto yuav tsis oxidized, zoo zam qhov tshwm sim ntawm residual tooj liab los yog luv luv Circuit Court, thiab txhim kho cov yield tus nqi ntawm metallized ib nrab. -Qhov PCB Circuit Board.
FAQs
Plated ib nrab-lub qhov los yog castellated-qhov, yog ib tug stamp-zoo li tus ntug los ntawm kev txiav nyob rau hauv ib nrab ntawm cov qauv. Plated ib nrab-qhov yog ib theem siab ntawm plated npoo rau cov ntawv luam tawm Circuit Board, uas feem ntau yog siv rau kev sib txuas ntawm board-to-board.
Via yog siv los ua kev sib txuas ntawm cov txheej tooj liab ntawm PCB thaum PTH feem ntau ua kom loj dua vias thiab siv los ua lub qhov plated rau kev lees txais ntawm cov khoom siv lead ua - xws li cov tsis-SMT resistors, capacitors, thiab DIP pob IC. PTH kuj tseem siv tau los ua qhov rau kev sib txuas ntawm cov khoom siv thaum lub vias tsis tuaj yeem.
Lub plating ntawm qhov los ntawm qhov yog tooj liab, tus neeg xyuas pib, yog li nws tso cai rau hluav taws xob conductivity mus los ntawm lub rooj tsavxwm. Tsis yog-plated los ntawm qhov tsis muaj conductivity, yog li yog tias koj siv lawv, koj tsuas muaj peev xwm muaj txiaj ntsig tooj liab lem ntawm ib sab ntawm lub rooj tsavxwm.
Muaj 3 hom ntawm lub qhov hauv PCB, Plated Through Hole (PTH), Non-Plated Through Hole (NPTH) thiab Via Holes, cov no yuav tsum tsis txhob tsis meej pem nrog Slots lossis Cut-outs.
Los ntawm tus qauv IPC, nws yog +/-0.08mm rau pth, thiab +/-0.05mm rau npth.