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O P T E K  

D P L - 2 4  

 4

Vacuum lamination of printed circuit boards has been utilized 
for many years. But it was not until the development of the 
DPL-24 that a system provided vacuum prior to the 
application of positive pressure.  

No pressure is applied to the product during the vacuum 
dwell cycle. In this way maximum evacuation of air from 
between the substrate and the laminate is assured. 

During the pressure cycle a flexible diaphragm  encapsulates 
the product and true isostatic lamination is achieved. Unlike 
roll laminators, the DPL–24’s diaphragm descends directly 
towards the platen. No lateral stress is applied , hence less 
distortion of the film can occur.

 

A Differential Pressure Laminator 

INTRODUCTION 

he DPL-24 Differential Pressure Laminator has been designed to give the 
operator a superior method for laminating sheet supported emulsions such 
as dry film solder mask, etc. Such materials can be applied to  various 

thicknesses and sizes of substrates.  Experimentation is being done on alternative 
uses for this device, among them,  High Vacuum, Multi-Layer, Pressing of Printed 
Circuit Boards and microBGA interconnects. 
The substrate, prelaminated either manually, or utilizing the 
A cold-roll lamination technique, is placed on the vulcanized rubber 
platen mounted in the drawer 
and positioned in the vacuum 
chamber.  Products of 
differing thicknesses and 
geometries can 
be intermixed during a cycle if 
adequate “hold-down” 
techniques are employed. 
 

The massive 1000 LB 

chamber  is constructed of 
Ductile Iron and uses only 
two o-rings. This design 
ensures a positive seal for best 
vacuum performance. 
 
 

Utilizing a high quality, high volume 45 CFM, 3 horsepower, rotary 

vane vacuum pump, an end point below two Torr is typically achieved. 

 

Summary of Contents for DPL-24

Page 1: ...1 Operations Technology Inc OPTEK DPL 24 Users Guide Operations Technology Inc 30 Lambert Road PO BOX 408 Blairstown NJ 07825 Phone 908 362 6200 Fax 908 362 5966 ...

Page 2: ...tents Introduction 4 Overview 5 Principles of Operation 6 Site Requirements 8 Specifications 9 Installation 10 Operation 12 Example 13 Precautions 14 Maintenance 14 Recommended Spare Parts 16 Ordering Information 16 Warranty 18 Index 19 ...

Page 3: ...ed to give the operator a superior method for laminating sheet supported emulsions such as dry film solder mask etc Such materials can be applied to various thicknesses and sizes of substrates Experimentation is being done on alternative uses for this device among them High Vacuum Multi Layer Pressing of Printed Circuit Boards and microBGA interconnects The substrate prelaminated either manually o...

Page 4: ...tact with the lower heater platen The temperatures of both the upper and lower heat platens are controlled independently by digital proportional Temperature Controllers A positive pressure of up to 10 PSI is applied to the top of the diaphragm to bring the combined differential to nearly 25 PSI The Pressure Dwell is adjusted by a precision digital timer identical to that employed by the Vacuum Dwe...

Page 5: ...ination Products of differing thicknesses and geometries can be intermixed during a cycle if adequate hold down techniques are employed The layered material is placed on the platen mounted in the sliding drawer When the drawer is closed the platen is positioned in the vacuum chamber and an O ring seal on the drawer face contacts the opening in the vacuum pressure vessel Before the beginning of the...

Page 6: ...ause the vacuum is equal above and below the diaphragm it does not move and does not contact the material in the drawer At the end of the Vacuum Dwell positive air pressure at up to 10 PSI is applied to the port above the diaphragm bringing the pressure differential to nearly 25 PSI see figure 3 The preheated silicone rubber diaphragm descends onto the workpiece This action drives the spring mount...

Page 7: ...atmospheric pressure As shown in figure 4 this returns the diaphragm and drawer platen to their original positions and allows the drawer to be opened for unloading SITE REQUIREMENTS Dimensions 44 Wide X 44 Deep X 60 High exclusive of leveling feet 1 to 2 Weight 2 200 LBS shipping Electrical Requirements 208 220 VAC 3 Phase 40 Ampere Phase Compressed Air Dry Filtered 70 PSI 3 CFM ...

Page 8: ...s etc Typical times for a dry film solder mask application would be 30 seconds for Vacuum Dwell and 20 seconds for Pressure Dwell Substrate size Items up to 24 X 24 can be laminated Smaller substrates can be processed in multiples if space permits and can be intermixed providing adequate hold down techniques are observed Substrate Thickness Thicknesses from 001 to 375 can be accommodated though st...

Page 9: ...t attempt to slide the chamber drawer 3 Using a forklift roughly place the DPL 24 utilizing the attached pallet 4 Remove lower back panel 5 Remove the four bolts securing unit to pallet 6 Raise unit with forklift blades positioned under main vessel being careful not to damage main valve see illustration below 7 Install leveling feet included into threaded holes formerly occupied by shipping bolts ...

Page 10: ...ase 40 Ampere power to input cable 15 Activate Main Power switch on front panel 16 Momentarily depress Emergency Reset switch on front panel 17 Activate Vacuum Pump switch on front panel 18 With one person at switch and one person at the pump JOG the vacuum pump switch and monitor the pump to ensure proper rotation indicated by the arrow found on motor end case Note If the rotation is opposite to ...

Page 11: ...sing and illuminating switches beneath digital controllers 7 Press asterisk and up or down arrows until desired temperature is indicated on digital readout 8 Release asterisk and note temperature indication on readout 9 A flashing green light below the temperature readout indicates the controller is triggering the solid state relay to supply current to the respective heater blanket 10 Allow 20 40 ...

Page 12: ...ime the operator desires to exit the cycle depress the CYCLE RESET button and machine will return to Step 0 Atmospheric pressure will be vented to the chamber and the drawer may be opened NOTE If at any time the operator wishes to hold the cycle at a given step depress the CYCLE STOP button The machine program will hold at the present step indefinitely To resume the program sequence press CYCLE ST...

Page 13: ...M Rotary Vane Vacuum Pump is supplied to you with no oil installed The oil should be changed after every 500 hours of operation and is available directly from Operations Technology Inc WARNING IT IS IMPERATIVE THAT OIL BE ADDED TO PUMP BEFORE OPERATION NOTE A separate manual for the pump has been included and all maintenance directives therein should be adhered to Vacuum Gauge The 0 20 Torr Solid ...

Page 14: ...ulator Normally clean filtered dry air should be supplied to the machine The DPL 24 however has an additional filter incorporated into the primary regulator This filter requires minimal maintenance Open petcock and drain out water occasionally Diaphragm The 50 Durometer 125 thick Silicone Rubber Diaphragm is the major wear item in the system It is advisable to keep a replacement Diaphragm on hand ...

Page 15: ... RELAY SOLID STATE 1 PIECE 53 00 EA 53 00 1043 RELAY MAIN 1 PIECE 120 00 EA 120 00 1070 VALVE ACTUATOR 1 PIECE 50 00 EA 50 00 1077 DIAPHRAGM 1 PIECE 300 00 EA 300 00 1078 PLATEN 24 X 24 1 PIECE 300 00 EA 300 00 1089 VACUUM PUMP OIL 5 GAL 15 00 GAL 75 00 1094 SPRING DRAWER 4 PIECES 2 00 EA 8 00 1113 BOARD HOLD DOWN 1 PAIR 150 00 PR 150 00 1117 TIMER DIGITAL 1 PIECE 125 00 EA 125 00 TOTAL 2 234 00 P...

Page 16: ...O P T E K D P L 2 4 17 ALSO AVAILABLE FROM OPERATIONS TECHNOLOGY INC 30 LAMBERT ROAD P O BOX 408 BLAIRSTOWN NJ 07825 Phone 908 362 6200 FAX 908 362 5966 ...

Page 17: ...ages and warranties statutory or otherwise being expressly waived by the purchaser This warranty is null and void if the equipment failure is due to negligence accident abuse or improper operation It is also nullified by tampering alteration or unauthorized repair of subject equipment or components This warranty does not include filters oil Platen and Diaphragm as they are generally considered to ...

Page 18: ...ctrical 9 Emergency Reset 12 Experimentation 4 H Heaters 13 hold down 4 6 10 M Maintenance 14 O O ring seal 6 P PARTS 17 Precautions 14 Pressure Dwell 5 10 14 Programming 5 R Rotation 11 Rubber platen 6 S sequence 14 16 SINGLE STEP 15 Specifications 9 Stretching effect 7 substrates 4 10 T Temperature Controllers 5 14 16 Thicknesses 10 V vacuum chamber 4 15 Vacuum Dwell 5 7 10 14 vacuum pump 4 7 9 ...

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