Foresite Standard Project Information

Have questions about what to expect when you work with Foresite? Here are more details about typical project engagements.

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Final Report Deliverables

Final report deliverables include:

  • Specific project goal – Defined at time of quote
  • Client specifications – Cleanliness levels, SIR
  • Foresite test protocol to accomplish the project goal
  • Process background information, including the process sequence (defined by client) and a material matrix indicating fluxes and chemistries used in the process
  • Photo documentation of the areas investigated
  • Residue analysis data (if applicable) – Identification and concentration of any residues present
  • Electrical performance data (if applicable) – From specified tests
  • Education regarding the usual sources of the specific ionic and organic residues found
  • Foresite cleanliness limit recommendation for each identified ionic and organic species; Foresite cleanliness limits derive from 22+ years of failure analysis and process qualification experience
  • Foresite data interpretation and conclusions from our technical team
  • Failure mechanism scenario (if applicable) – What caused the failure to occur
  • Foresite recommendations for any process corrective action or optimization
  • Project report electronically sent to the client project contact
  • Telephone support available for discussion of the report

 

Note: One-page reports are issued for specific types of projects; these typically include cleaning projects and IC testing of C3 vial samples.

 

Upon the completion of the project, samples are either destroyed or returned to the client, per instructions.

 

 

Project Start Requirements

Requirements are:

  • Receipt of the samples
  • Establishment of the payment method (hard copy purchase order or credit card information)

 

 

Project Timing Options

Ion Chromatography (IC) Testing

  • Standard – Final report completion ten business days after the project start
  • Moderate Turn – Final report completion five business days after the project start
  • Fast Turn – Final report completion two business days after the project start (to analyze up to 50 samples) or three business days after the project start (to analyze 50-100 samples)

 

Cross-sectioning, SIR Testing and Cleaning

  • Project timing is established at the project start – Dependent upon factors such as equipment availability

 

 

Materials and Process Specifications

To analyze process performance, the materials and process specifications must be identified:

  • Material specifications – Base laminate material, surface finishes, solder resist, fluxes
  • Solder resist vendor and formulation nomenclature
  • Flux types — OA (water soluble), NC (no-clean/low-residue), other
  • Flux vendor and formulation nomenclature
  • Flux application method – Spray or foam)
  • Cleaning technology – Tap water, DI water, solvent
  • Cleaner type – Vendor, batch, or in-line
  • Stage(s) at which assembly is cleaned – Post reflow, post wave, hand, rework
  • Assembly equipment to be used – Automated and hand
  • Types of components to be assembled – Thru-hole, surface mount, COB, BGA, HDI
  • Thermal profiles for all product heat excursions – Reflow, wave, hand, rework
  • Atmosphere used during reflow and wave process – Oxygen or nitrogen
  • Solder pot temperature
  • Other assembly materials – Adhesives, temporary masks, coatings
  • All hand operations and materials – Post-wave, irons used, cleaning methods
  • Assembly drawings and process sequence flow charts

 

 

Information Requested Prior to Project Start

The following information is requested prior to the start of a project:

  • Is a detailed history of the process and the current situation available?
  • Has your company qualified the current manufacturing process? How? By whom?
  • Has the existing process performance been baseline validated to establish a reference?
  • What are the product requirements and goals for field reliability? (IPC Class 2 or 3)
  • What is the Product Classification? (automotive, medical, military, general commercial)
  • What is the service environment of the products produced? (geographical locations)
  • Is the product manufacturing a captive operation or contract service?
  • Where is the assembly plant located?

 

 

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