4层FR4板层间距测量表说明书 The chart below provides the thickness for a single ply (sheet) of each style of Pre-Preg after processing. These are grouped by the weight and type of the internal conductor layer (typical signal and plane layers) that they will be adjacent to (columns A-F)....
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Board thickness 0.2mm-6mm(normally 1.6mm) Max. board size 1200*600mm Finished board thickness 0.3-5mm Min .drilled hole size 0.1mm Min. line width 0.1mm(4mil) Min. line space 0.1mm(4mil) Surface finish/treatment HASL, lead free HASL ,Immersion Gold(ENIG...
其粘合片和内芯薄覆铜板是制造多层印制电路板的重要基材。 There are many other names, including FR-4 light sheet, FR-4 fiber sheet, FR-4 epoxy sheet, FR-4 flame retardant sheet, so many names also reflect the wide application of FR-4 fiberglass sheet from other side. . FR-4 fiberglass ...
産生W/T. 此點在薄基材(Thin Core)尤其顯著。此外,膠片疊置之經緯方向一旦弄錯、組合不當或 使用變形的鋼板、蓋板、墊板等,皆可能造成W/T. 對策:升、降溫太快而産生的W/T,可由降低其溫度變化速率,及另行加做“後烘烤”(Post Bake) 等方向著手。至於組合不當或鋼板板變形所造成的W/T,則需針對個別的原因...
A: For Bare PCB project, please provide Quantity, Gerber file and specification like material, surface finish treatment, copper thickness, board thickness, soldermask color and silkscreen color and other special Q: Are my files safe? A: Your files are ...
Copper foil thickness 18um-350um(0.5OZ-8OZ) NPTH Tolerance +/-0.075mm NPTH Tolerance +/-0.05mm Outline Tolerance +/-0.13mm Surface finished HASL/HASL lead free,Immersion Gold(ENIG)/Tin/Silver,OSP,gold plating/finger,Carbon ink,Peelable mask Impendance Control Tolerance...
Max thickness 4.5mm T>4.5mm SMT components spec outline dimension Min size 201 1005 (0.6mm*0.3mm) (0.3mm*0.2mm) Max size 200mm*125mm 200mm*125mm<SMD component thickness T≤6.5mm 6.5mm<T≤15mm QFP,SOP,SOJ(multi pins) Min pin space 0.4mm 0.3mm≤Pitch<0.4mm CSP,BGA ...
Copper Thickness 1oz Test Flying Probe & Fixture Solder Mask Type Green Silkscreen Type White Min.Line Width/Space 0.1mm Min. Hole Size 0.25mm Surface Finish Enig 2u" X-Outs Allowed Not Allowed Standard Ipcii Class 2 Certification RoHS, CCC, ISO, EPA Customize...
Inner layer copper thickness 70um(bulk) 150um(pcb protytype) Min.finished hole size(Mechanical) 0.15mm Min.finished hole size (laser hole) 0.1mm Aspect ratio 10:01(bulk) 13:01(pcb prototype) Solder Mask Color Green,Blue,Black,White,Yellow,Red,Grey Tolerance of dimension...