drying cabinet
MP DRY CABINET
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Terms explanation •MSD (Moisture Sensitive Devices)
•MSL (Moisture Sensitive Level) Components sensitivity level – number 1 to 6 indicating the sensitivity level
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Terms explanation IPC/JEDEC J- STD 033C rev. 01/2012 JOINT IPC/JEDEC STANDARD FOR HANDLING, PACKING, SHIPPING, AND USE OF MOISTURE/REFLOW SENSITIVE SURFACE-MOUNT DEVICES
IPC-1601 rev. 08/2010 Printed Board Handling and Storage Guidelines
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Why MSD issues?
Moist components / PCBs can cause serious problems in the production Production failures can be dangerous, in every possible way irritating and lead to customer looking for alternative or other suppliers
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Why? • Moisture and components do not mix • Packing materials made from plastic often acumulate moisture • If the critical point of moisture penetrating the plastic packing is reached, the component can be damaged during the soldering process („Popcorning / Popcorn effect “) • These failure are often hard to visibly detect and lead to massive product damage in a long time period • Lead free - higher temperatures increase the risk of damage
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Popcorn effect • The epoxy molding compound used in most plastic encapsulated devices is hygroscopic • During the Pb-free soldering process the temperatures reach up to 260ºC • Fast growth of temperature and high process temperatures prevent the moisture from escaping
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
„Popcorn effect“ •High temperature and its growth leads to delamination of internal different material layers (die molded in epoxy packing) Results are gas bubbles of accumulated moisture •Caused failures are not always visually detectable !!!
BGAs are „popcorning“ mostly down
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
„Popcorn effect“ •After reaching the critical elastic point of the material the water vapor escapes with sudden explosion •Plastic packing is damaged with a crack / leak after the explosion. Through this leak the surrounding moisture starts to slowly destroy the component, if not destroyed / moved out of position by the explosion of accumulated gas •Did you know? At the Pb-free soldering temperatures is the internal gas pressure up to 3 times higher than the pressure during a leaded soldering process
TECHNOLOGIE A MATERIÁLY PRO VÝROBU ELEKTRONIKY
„Popcorn effekt“ examples
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
HUMIDITY vs. PCB DELAMINATION of PCB
PAD OXIDATION
Next problem of long time expose to the moisture can be the delamination of the non-solder mask after reflow process
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MSL Levels acc. IPC
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MSD Label example
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
History of drying the MSD components / PCBs • The component / PCB used to be „baked“ for drying • Typical temperature of baking where up to 125°C, for up to 1 week • These solutions where financialy, energy and time intensive • Baking is still allowed, but only acc. to IPC/JEDEC J- STD 033C (≤5% RH, max.95°C)
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Disadvantages of „baking“ • Reflow process does not reset the „Floor Life clock“, eventual rework or repeated reflow process must be done before exceeting the • „Baking“ lowers the solderability and supports surface floor life. Otherwise they must be dryed out degradation (oxidation) according to their MSD level. • High temperatures promote growth of intermetalic layers • The machines are very expensive with a limited capacity
• Some components / tubes / trays / assemblies can not be exposed to temperatures higher than 60°C • It is recommended to dry out assemblies before rework, but some components can not be baked (battery, display, etc…)
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Modern alternatives • N2 cabinets: very expensive running costs very pure nitrogen required other equipment required, can not be run everywhere (N2 tank and piping) mostly never better than 5%RH •
Vacuum packing to MBB bags (Moisture Barrier Bag) first invest is seems to be quite low ( some MBB bags, desiccant, vacuum unit, indicators) but: very time consuming =˃ no flexibility expensive running costs in long time period – costs of MBB bags + desiccant bags + highend vacuum unit will accumulate in time
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Alternatives – „SUMMARY“ • COMPARED TO DRY CABINETS ARE OTHER SOLUTIONS FROM FINANCIAL AND TIME POINT OF VIEW VERY INEFFICIENT
• Did you know? Drying ≤1%RH at 60ºC is up to 5x faster than drying at 2%RH and 40ºC
• NON OF ALTERNATIVE SOLUTIONS DO NOT RESET THE FLOOR LIFE CLOCK OF THE COMPONENTS, ONLY STOP THE COMPONENT‘S „AGING“... • FOR TIME EFFECTIVE COUNTER RESET THE LONG-TERM RH MUST BE UNDER 2%RH!!!
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MP DRY CABINET
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MP DRY CABINET series Fast and very effective way of components/PCB drying and storage under very low RH
MP DRY CABINET LT series Cost effective solution for longtime storage under very low RH
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Why MP DRY CABINET • Perfectly dries out all stored components and PCBs • Absolutely no maintenance • Low running costs - perfect insulation - perfect airtightness - no purchase of consumable materials needed (MBB bags, dessicant bags) • Fully controlled process – PLC INTEGRATED LOGGER for data recording and traceability
• Fast access =˃ flexibility =˃ time saving =˃ higher effectivity
Two independent chambers system Four independent chambers system
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Why MP DRY CABINET SENSOR LOCATION IN A CABINET, TOP OR BOTTOM?? VS. ACCURACY OF INTERNAL RH MEASUREMENTS? Increased moisture content will reduce the density of the moist air - Dry air is more dense than moist air. This occurs because the molar mass of water (18 g/mol) is less than the molar mass of dry air (around 29 g/mol) Dry air is heavier than a moist air!!!
SENSORS LOCATED IN BOTTOM PART OF CABINETS DO NOT REFLECT THE REAL CONDITION OF INTERNAL AIR HUMIDITY!!! THE SENZOR LOCATION IN OUR MP DRY CABINETS GUARANTEES THE REAL REST HUMIDITY VALUES OVER THE ENTIRE CABINET VOLUME!!!
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
ROTRONIC SENSOR
MP DRY CABINET Accuracy All MP DRY CABINET units are equipped with the world leading sensors in humidity and temperature measurements from swiss company ROTRONIC. Digital comunication between the senzor and PLC guarantees the most acurrate transmission of parameters MP DRY CABINET I + II + IV accuracy +/-0.8% RH, +/- 0.1K (standard) MP DRY CABINET I + II + IV with a HPS accuracy +/-0.5% RH, +/- 0.1K (option)
• Did you know? Rotronic HPS Sensor is currently the most acure industrial sensor on the market, often used by different laboratories to calibrate others humidity sensors…
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MP DRY CABINET ≤ 0.5% RH Ø ≤1%RH/24h MAX. 60ºC
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MP DRY CABINET
MP DRY CABINET I 260 l / 1x door MP DRY CABINET II 550 l / 2x doors MP DRY CABINET IV 1010 l / 4x doors
Two or four doors for II and IV = reduced cabinet ventilation
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MP DRY CABINET Standard equipment •
Full graphic touch screen display
•
Complete stainless steel ESD safe body with a ESD grounding point
•
Stainless steel shelves 3 / 5 / 10, adjustable in 20mm steps (ESD safe)
•
Insulation of 30mm
•
Di-thermal metal coated glass - safes energy, safe even at 60ºC
•
ESD wheels for an easy handling + ESD safe stainless steel legs
•
Acoustic alarm for drying unit error
• Acoustic
alarm of opened doors, time defined by
user • Internal
Data Logger with memory and USB connector for recording of running conditions and door openings with duration, interval defined by user
• LAN • 2x
connection for data download via ethernet
drying unit MPDRY5 for MP DRY CABINET IV !!
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MP DRY CABINET Options •
Lockable doors with mechanic locks ( 1 / 2 / 4 )
•
Status lamp (red/green)
•
Insulation 45mm / 60mm ( for even greater energy savings)
•
Internal LED light
•
Door glass protected with ESD foil
•
Electromagnetic lock with timer function or password protection for each door
•
Electromagnetic lock with RFID function and access SW
•
temperature increase up to 70ºC
• 2x
drying unit MPDRY5 and heatings for MP DRY CABINET II !!
• Up
to 4x drying unit MPDRY5 and heatings for MP DRY CABINET IV !!
•
Two independent chambers system for MP DRY CABINET II and IV
•
Four independent chambers system for MP DRY CABINET IV
•
Custom made solutions
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MP DRY CABINET LT ≤ 0.5% RH Ø ≤1%RH/24h MAX. 40ºC (option)
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MP DRY CABINET LT
MP DRY CABINET I LT 315 l / 1x door MP DRY CABINET II LT 690 l / 2x doors MP DRY CABINET IV LT 1385 l / 4x doors
Two or four doors for II LT and IV LT = reduced cabinet ventilation
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MP DRY CABINET LT Standard equipment •
Full graphic touch screen display
•
Complete ESD safe body (RAL7016) with a ESD grounding point
•
ESD safe shelves 3 / 5 / 10, adjustable in 20mm steps
•
ESD wheels for an easy handling + ESD safe stainless steel legs
•
• Acoustic
alarm of opened doors, time defined by
user • Internal
Data Logger with memory and USB connector for recording of running conditions and door openingswith duration, interval defined by user
• LAN • 2x
connection for data download via ethernet
drying unit MPDRY5 for MP DRY CABINET IV LT
Acoustic alarm for drying unit error
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
MP DRY CABINET LT Options •
Internal heating unit, max 40ºC
•
Lockable doors with mechanic locks ( 1 / 2 / 4 )
•
Status lamp (red/green)
•
Internal LED light
•
Door glass protected with ESD foil
•
Electromagnetic lock with timer function or password protection for each door
•
Electromagnetic lock with RFID function and access SW
• 2x
drying unit MPDRY5 and/or heatings for MP DRY CABINET II LT
• Up
to 4x drying unit MPDRY5 and/or heatings for MP DRY CABINET IV LT
•
Two independent chambers system for MP DRY CABINET II LT and IV LT
•
Four independent chambers system for MP DRY CABINET IV LT
•
Custom made solutions
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Two independent chambers system - two chambers vertically separated for MP DRY CABINET IV/LT - two chambers horizonatlly separated for MP DRY CABINET II/LT - each chamber is thermaly and hermetically separated - each chamber is equipped with own drying unit, sensor and touch screen control panel - different parameters can be set up in every chamber separately - data from each chamber are tracked via LAN or USB separately - electromagnetic lock for each chamber with own time parameters possible
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Four independent chambers system - four independent chambers for MP DRY CABINET IV/LT - each chamber is thermaly and hermetically separated - each chamber is equipped with own drying unit, sensor and touch screen control panel - different parameters can be set up in every chamber separately - data from each chamber are tracked via LAN or USB separately - electromagnetic lock for each chamber with own time parameters possible
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
SOFTWARE Options
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Software for internal parameters recording DryCabinet SW
SW for graphical display of temperature and humidity inside of the cabinet in a time curve. Also showing count of door openings per day with a timestamp, total open time and a day average of measured values. Connection via LAN for on-line data transfer
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
DRY Cabinet SW
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
Software for Storage Management and Traceability
DRYTrace SW for storage management of carriers and PCBs inside of the drying cabinet. The User is informed what is in which cabinet, where is the material in specific cabinet by using names and color codes for each shelve and shelve compartment. There is also the expiry time for each component being shown and how long it will take, under current conditions to dry out completely. Data input via 1D / 2D scanner Material library for easy identification User defines the MSL level and current dry cabinet settings ( temperature + humidity ) Alarm for expired components Quantity can be manualy added Scan for location outside of the cabinet possible
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
DRYTrace Library Import SW Simple utility to import customer‘s componet library in .csv format into DryTrace SW library.
Email client for DryTrace With this option are emails with prewarnings and warnings regarding expired material being send out.
DryTrace SW - Dry Cabinet Editor
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
DryTrace SW - Component Library
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
DryTrace SW - Carriers List
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
DryTrace SW - PCB Storage
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
DRYTrace • Quick and efective material storage / flow overview • Operators are alarmed if any component reached its max. floor life and can very fast look for alternatives
• CAN BE USED TOGETHER WITH ANY OTHER DRY CABINET BRAND
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
RFID Access control system
RFID SW This software is a combination of our DRY CABINET SW (on-line graphical display of temperature and humidity inside of the cabinet + count of door openings) and a cabinet equiped with
a electromagnetic locks and a RFID reader. Operator has to scan his/her RFID card to get access to the cabinet. The operator will have the possibility to open only the doors, which are assigned to his/her RFID card, all other doors remain locked. The details about time, duration and operator‘s name are collected and can be shown. The only real time Access Control System on the market.
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION
RFID Access control system
TECHNOLOGY AND MATERIALS FOR ELECTRONIC PRODUCTION