Industry Directory | Manufacturer
Manufacturer of Laser Cut & Chemical Etched Stencils.
Industry Directory | Consultant / Service Provider / Manufacturer
Tropical Stencil is dedicated to providing the highest quality Laser Cut Stencils; with our rapid response, you will have your Stencil delivered on-time.
New Equipment | Solder Paste Stencils
Eliminate hours of solder mask damage repair time for bga sites while improving rework yield. Are you frustrated by the time it takes to repair mask damage underneath the BGA during the rework process? Are you squeezed for space on the PCB in an
New Equipment | Rework & Repair Equipment
The BEST EZReball™ process is the answer to your reballing problems. This BGA reballing process simplifies the process while eliminating the clean up of all those paper remnants, allowing for better yields and faster reballing times. The simplicity o
Electronics Forum | Thu Oct 25 21:33:24 EDT 2007 | hussman
Castellated is the easiest lead design. Anything longer than the out side dimension of the part should be OK. However, you will never get an inspection person to say it looks OK, yet the solder joint occurs on the bottom side of the part - like a B
Electronics Forum | Mon Oct 13 19:04:47 EDT 2003 | davef
Aperture size should vary with the component [pitch]. That size should be the same a the pad size. So, generally pinching is not required. Indium discusses BGA apertures on their site [ http://www.indium.com ]
Industry News | 2003-03-21 08:12:24.0
Tecan reckons it is consistently producing what may be regarded as the most efficient stencils in the world today.
Industry News | 2013-01-19 07:46:16.0
Information that inspires innovation is center-stage for design, printed boards, electronics assembly, test and printed electronics
Parts & Supplies | Pick and Place/Feeders
NXT nozzle NXT-H01-7.0G (AA07300/AA07310) Spare Name: AA07300 AA07310 NXT-H01-7.0G Specifications Model: NXT NOZZLE Head H01 Dia 7.0G. FUJI NXT H01 PICK UP NOZZLE ¢ Applicable models: FUJI NXT H01 AA0AS00 FUJI NXT H01 1.0 AA05800 F
Parts & Supplies | Pick and Place/Feeders
NXT nozzle NXT-H01-H02-1.3 (AA06812/AA06800) Spare Name: AA06812 AA06800 NXT-H01-H02-1.3 Specification: NXT NOZZLE Head H01 & H02 Dia. 1.3 FUJI NXT H01 PICK UP NOZZLE ¢ Applicable models: FUJI NXT H01 AA0AS00 FUJI NXT H01 1.0 AA05800
Technical Library | 2017-04-13 16:14:27.0
The drive to reduced size and increased functionality is a constant in the world of electronic devices. In order to achieve these goals, the industry has responded with ever-smaller devices and the equipment capable of handling these devices. The evolution of BGA packages and leadless devices is pushing existing technologies to the limit of current assembly techniques and materials.As smaller components make their way into the mainstream PCB assembly market, PCB assemblers are reaching the limits of Type 3 solder paste, which is currently in use by most manufacturers.The goal of this study is to determine the impact on solder volume deposition between Type 3, Type 4 and Type 5 SAC305 alloy powder in combination with stainless steel laser cut, electroformed and the emerging laser cut nano-coated stencils. Leadless QFN and μBGA components will be the focus of the test utilizing optimized aperture designs.
Technical Library | 2023-07-25 16:50:02.0
Some of the new handheld communication devices offer real challenges to the paste printing process. Normally, there are very small devices like 01005 chip components as well as 0.3 mm pitch uBGA along with other devices that require higher deposits of solder paste. Surface mount connectors or RF shields with coplanarity issues fall into this category. Aperture sizes for the small devices require a stencil thickness in the 50 to 75 um (2-3 mils) range for effective paste transfer whereas the RF shield and SMT connector would like at least 150 um (6 mils) paste height. Spacing is too small to use normal step stencils. This paper will explore a different type of step stencil for this application; a "Two-Print Stencil Process" step stencil. Here is a brief description of a "Two-Print Stencil Process". A 50 to 75 um (2-3 mils) stencil is used to print solder paste for the 01005, 0.3 mm pitch uBGA and other fine pitch components. While this paste is still wet a second in-line stencil printer is used to print all other components using a second thicker stencil. This second stencil has relief pockets on the contact side of the stencil any paste was printed with the first stencil. Design guidelines for minimum keep-out distances between the relief step, the fine pitch apertures, and the RF Shields apertures as well relief pocket height clearance of the paste printed by the first print stencil will be provided.
Demonstration of BGA rework via stencil printing. BEST's StikNPeel stencil is an adhesive backed stencil which allows users to stick the stencil in to place and simply peel it off the PCB with a temporary adhesive system. This leaves consistent print
StencilQuik demonstration video. This breakthrough method allows you to simplify placement/replacement saving 50% or more of time required to rework BGAs or CSPs.This is a well developed BGA rework method. More on the StencilQuik(TM) process here:
Events Calendar | Mon Mar 18 00:00:00 EDT 2019 - Mon Mar 18 00:00:00 EDT 2019 | ,
Webinar: Stencil Design for Solder Paste, In Process Inspection & Process Defects
Career Center | Bangalore, India | Engineering,Maintenance,Production,Technical Support
SMT Stencil designing & Knowledge of full SMT process software known CAD/CAM -circuit CAM Pro 7.3,GC Power station, GCCAM Edit,Auto CAD, Fault finding of Electronic Boards & Servicing electronic machines.
Career Center | , | Engineering,Production
Project Management, SMT Process Engineering
SMTnet Express, March 8, 2018, Subscribers: 31,288, Companies: 10,911, Users: 24,465 Optimization of Stencil Apertures to Compensate for Scooping During Printing Gabriel Briceno, Ph. D., Miguel Sepulveda; Qual-Pro Corporation This study
SMTnet Express, September 27, 2018, Subscribers: 31,354, Companies: 11,055, Users: 25,237 Assessing the Effectiveness of I/O Stencil Aperture Modifications on BTC Void Reduction Carlos Tafoya, Gustavo Ramirez, Timothy O'Neill; AIM Solder Bottom
40731 | https://www.smta.org/smtai/SMTAI-2019-Technical-Program.pdf?v=200609010628
Surface Mount Technology Association (SMTA)
