SMT Stencil for PCB Assembly Solder Paste Laser Profile

• Customization: Available
• Mode of Production: Laser Cut
• Layers: Double-Layer
• Model NO.: BIC-427-V4.27
• Base Material: Stainless Steel Shim
• Certification: RoHS, ISO
• Customized: Customized
• Structure: Stencil Foils with Aluminum Frame
• Foil Thickness: 0.1mm
• Aperture: Laser Cut
• Appearance: Engraving and Electro Polishing
• Advantages1: a) High Precision Dimension
• Advantages2: B) Good Shape on The Window
• Advantages3: C) Hole Wall Is Smoother.
• Fiducial Mark: Through Hole
• Application: Csp, BGA, 0.5mm Qfp etc Package
• Transport Package: Kk Carton (Hard Card)
• Specification: 420 mm x 520 mm x 20mm=1pcs
• Trademark: Bicheng Enterprise Limited
• Origin: China
• HS Code: 7314200000
• Production Capacity: 50000PCS/Month

Product Description

Product profile

1.1 General description

This is a type of solder paste SMT stencil (100% laser cut) built on 0.1mm stainless
steel foil with aluminum frame 420 mm x 520 mm x 20mm dimension. It's fabricated
per IPC 7525A using supplied Gerber data, squeegee area locating in the center.
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 μ m;
C. The opening of SMT template has geometric figure, which is advantageous to the
     printing and forming of tin paste;
D. Engineering design prevents problems from occurring in pre production;
E. Money-saving, Worry-saving and Labor-saving;
F.  Door to door shipment service;
G. More than 9000 types per month;
H. No minimum order quantity. 1 piece is available;

1.3 Application

SMD package such as PLCC,QFP,0402,0201,BGA,Flip Chip

1.4 Parameter and data sheet

Dimension:	370mm x 470mm, 420mm x 520mm, 550mm x 650mm
Structure	Stencil foils with aluminum frame
Base material	Stainless steel shim
Foil Thickness	0.05mm, 0.06mm, 0.08mm, 0.1mm, 0.12mm,  0.15mm, 0.18mm, 0.2mm
Aperture configured	Laser cut
Appearance	Engraving and electro polishing
Fiducial mark	Through hole
Service area:	Worldwide
Quantity of open pads:	1533
Advantages:	a) High precision dimension; b) Good shape on the window;  c) Hole wall is smoother.
Application:	CSP, BGA, 0.5mm QFP etc. package

1.5 Opening Hole Design for Stencil

Component  Type	Pitch	Soldering Width	Soldering  Length	Opening Width	Opening  Length	Shim Thickness
PLCC	1.27mm	0.65mm	2.00mm	0.60mm	1.95mm	0.15-0.25mm
QFP	0.635mm	0.35mm	1.50mm	0.32mm	1.45mm	0.15-0.18mm
QFP	0.50mm	0.254-0.33mm	1.25mm	0.22-0.25mm	1.20mm	0.12-0.15mm
QFP	0.40mm	0.25mm	1.25mm	0.20mm	1.20mm	0.10-0.12mm
QFP	0.30mm	0.20mm	1.00mm	0.15mm	0.95mm	0.07-0.12mm
0402		0.50mm	0.65mm	0.45mm	0.60mm	0.12-0.15mm
0201		0.25mm	0.40mm	0.23mm	0.35mm	0.07-0.12mm
BGA	1.27mm	0.80mm		0.75mm	0.75mm	0.15-0.20mm
BGA	1.00mm	0.38mm		0.35mm	0.35mm	0.10-0.12mm
BGA	0.50mm	0.30mm		0.28mm	0.28mm	0.07-0.12mm
Flip Chip	0.25mm	0.12mm	0.12mm	0.12mm	0.12mm	0.08-0.10mm
Flip Chip	0.20mm	0.10mm	0.10mm	0.10mm	0.10mm	0.05-0.10mm