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Laser Stencil Built on 520 X 420mm with Aluminum Fame1
StencilPCB BoardPrinted Circuit Board Assembly
Shenzhen Bicheng Electronic Technology Co., Ltd
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Product Description 1.1 General descriptionThis is a type of laser cut SMT stencil built on 0.12mm stainless steel foil with 420mm x 520mmx20mm dimension. It's fabricated per IPC 7525A using supplied Gerber data, squeegee arealocating in the center. 4 sides of fiducal marks are through holes to suit for the SMT machine.It's packed with KK carton (hard card) and usually 2 stencils are packed for shipment.1.2 Features and benifits A. The data file is used directly to produce and reduce the error rate;B. The opening position accuracy of SMT template is very high: the whole process error is ≤ ±4 μm;C. The opening of SMT template has geometric figure, which is advantageous to the printing and forming of tin paste;D. ISO9000 certified manufacturing factory;E. 12 hours quotation;F. Quick Lead time: 1-2 days;G.No MOQ, low cost for prototypes and small runs quantity;1.3 ApplicationSMD package such as PLCC,QFP,0402,0201,BGA,Flip Chip.1.4 Parameter and data sheetDimension:520 x 420 mm =1 PCSStructureStencil foils with aluminum frameBase materialStainless steel shimFoil Thickness0.12mmAperture configuredLaser cutAppearanceEngraving and electro polishingFiducial markThrough holeService area:WorldwideQuantity of open pads:1124Advantages:a) High precision dimension; b) Good shape on the window; c) Hole wall is smoother.Application:CSP, BGA, 0.5mm QFP etc. packageOpening Hole Design for StencilComponent TypePitchSoldering WidthSoldering LengthOpening WidthOpening LengthShim ThicknessPLCC1.27mm0.65mm2.00mm0.60mm1.95mm0.15-0.25mmQFP0.635mm0.35mm1.50mm0.32mm1.45mm0.15-0.18mmQFP0.50mm0.254-0.33mm1.25mm0.22-0.25mm1.20mm0.12-0.15mmQFP0.40mm0.25mm1.25mm0.20mm1.20mm0.10-0.12mmQFP0.30mm0.20mm1.00mm0.15mm0.95mm0.07-0.12mm0402 0.50mm0.65mm0.45mm0.60mm0.12-0.15mm0201 0.25mm0.40mm0.23mm0.35mm0.07-0.12mmBGA1.27mm0.80mm 0.75mm0.75mm0.15-0.20mmBGA1.00mm0.38mm 0.35mm0.35mm0.10-0.12mmBGA0.50mm0.30mm 0.28mm0.28mm0.07-0.12mmFlip Chip0.25mm0.12mm0.12mm0.12mm0.12mm0.08-0.10mmFlip Chip0.20mm0.10mm0.10mm0.10mm0.10mm0.05-0.10mm
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