B&G International Decapsulator Model 250 - Revision history

Hash: /* Control Unit Pictures */

2020-06-28T19:33:09Z

Control Unit Pictures

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@@ Line 40: / Line 40: @@
 File:BG Model 250 Controller Internal 1.jpeg|Power supply on the right with EMI Suppression on the bottom. Control PCB's on the top with ribbon cable that plugs into front panel PCB.
 File:BG Model 250 Controller Internal 2.jpeg|Internal view from the other side
-File:BG Model 250 Controller Processor Board.jpeg|Processor board runs on a Motorola 6803 8-bit microcontroller with an external 8k RAM, 64k EEPROM and an unknown size EPROM with version sticker on it.
+File:BG Model 250 Controller Processor Board.jpeg|Processor board runs on a Motorola 6803 8-bit microcontroller at 4.9152 MHz with an external 8k RAM, 64k EEPROM and a 256k EPROM with version sticker on it.
 File:BG Model 250 Controller Processor Board Back.jpeg|Back of processor board, small jumper wire seen on the top right side. This is present on two different processor PCB's I have, not just a manufacturing defect with this board.
 File:BG Model 250 Controller IO Board Front.jpeg|IO Board used to drive valves in Acid Etching unit. a buzzer is on the bottom middle which is triggered when there are errors or user interaction needed in the process.

@@ Line 34: / Line 34: @@
 ==Control Unit Pictures==
-<gallery mode="packed" heights="240">
+<gallery mode="packed" heights="200">
 File:BG Model 250 Controller Front.jpg|Front panel with LCD screen and 6 button keypad for loading programs and controlling various built-in maintenance features.
 File:BG Model 250 Controller Back.jpeg|Rear with DB9 and DB25 connections on the left. DB9 supports RS232 and DB25 is from the IO Board which connects to the Acid Etching unit to control all the valves and read values back. Fan, power switch and plug on the right.
 File:BG Model 250 Controller Control Panel PCB.jpeg|Rear of LCD PCB seen on the top, bottom is PCB used for reading buttons and signal conditioning for LCD.
 </gallery>
+*

@@ Line 16: / Line 16: @@
 ----
-== Acid Etching Unit ==
+==Acid Etching Unit Pictures==
 <gallery mode="packed" heights="200">
 File:BG International Decapsulator Model 250.png|Decapsulator on the left and control box on the right. Control box contains all microprocessors and control logic.
@@ Line 33: / Line 33: @@
 ----
-== Control Unit ==
+==Control Unit Pictures==
+<gallery mode="packed" heights="240">
+File:BG Model 250 Controller Front.jpg|Front panel with LCD screen and 6 button keypad for loading programs and controlling various built-in maintenance features.
-<br />
+File:BG Model 250 Controller Back.jpeg|Rear with DB9 and DB25 connections on the left. DB9 supports RS232 and DB25 is from the IO Board which connects to the Acid Etching unit to control all the valves and read values back. Fan, power switch and plug on the right.
+*

@@ Line 13: / Line 13: @@
-This image from the book "Product Integrity and Reliability in Design" appears to be a schematic of the Model 250.<br />[[File:John W. Evans, Jillian Y. Evans, Dong-su Ryu (auth.), John W. Evans, Jillian Y. Evans (eds.) - Product Integrity and Reliability in Design-Springer-Verlag London (2001).jpg]]<br /><gallery mode="packed" heights="200">
+This image from the book "Product Integrity and Reliability in Design" appears to be a schematic of the Model 250.<br />[[File:John W. Evans, Jillian Y. Evans, Dong-su Ryu (auth.), John W. Evans, Jillian Y. Evans (eds.) - Product Integrity and Reliability in Design-Springer-Verlag London (2001).jpg]]
 File:BG International Decapsulator Model 250.png|Decapsulator on the left and control box on the right. Control box contains all microprocessors and control logic.
 File:BG Model 250 Front.JPG|Decapsulator with top and side covers removed.
@@ Line 26: / Line 30: @@
 File:BG Model 250 Side 1 Vent Valve.JPG|Pressure relief valve used to release pressure in the chamber. Pressure is vented out to the waste acid capture container. This container must not be sealed unlike the fresh acid containers which are sealed.
 File:BG Model 250 Side 2 Cylinder Valve.JPG|Close up picture of the valve used to control the large cylinder that lifts/lowers the chamber lid.
-</gallery><br />
+</gallery>
+*

@@ Line 13: / Line 13: @@
-This image from the book "Product Integrity and Reliability in Design" appears to be a schematic of the Model 250.<br />[[File:John W. Evans, Jillian Y. Evans, Dong-su Ryu (auth.), John W. Evans, Jillian Y. Evans (eds.) - Product Integrity and Reliability in Design-Springer-Verlag London (2001).jpg]]<br /><gallery>
+This image from the book "Product Integrity and Reliability in Design" appears to be a schematic of the Model 250.<br />[[File:John W. Evans, Jillian Y. Evans, Dong-su Ryu (auth.), John W. Evans, Jillian Y. Evans (eds.) - Product Integrity and Reliability in Design-Springer-Verlag London (2001).jpg]]<br /><gallery mode="packed" heights="200">
 File:BG International Decapsulator Model 250.png|Decapsulator on the left and control box on the right. Control box contains all microprocessors and control logic.
 File:BG Model 250 Front.JPG|Decapsulator with top and side covers removed.

@@ Line 13: / Line 13: @@
-This image from the book "Product Integrity and Reliability in Design" appears to be a schematic of the Model 250.<br />[[File:John W. Evans, Jillian Y. Evans, Dong-su Ryu (auth.), John W. Evans, Jillian Y. Evans (eds.) - Product Integrity and Reliability in Design-Springer-Verlag London (2001).jpg]]<br /><gallery mode="packed">
+This image from the book "Product Integrity and Reliability in Design" appears to be a schematic of the Model 250.<br />[[File:John W. Evans, Jillian Y. Evans, Dong-su Ryu (auth.), John W. Evans, Jillian Y. Evans (eds.) - Product Integrity and Reliability in Design-Springer-Verlag London (2001).jpg]]<br /><gallery>
 File:BG International Decapsulator Model 250.png|Decapsulator on the left and control box on the right. Control box contains all microprocessors and control logic.
 File:BG Model 250 Front.JPG|Decapsulator with top and side covers removed.
 File:BG Model 250 Rear.JPG|Decapsulator rear with hose attached to Nitrogen port. DB25 and power connector seen on the right. Holes on the left had Swagelok connectors that were removed and PTFE tube run straight from internal ports to external containers.
 File:BG Model 250 Top Regulators.JPG|Pressure regulators at the bottom of the image to regulate Nitrogen used to control acid valves and large cylinder that opens/closes chamber.
-File:BG Model 250 Side 1.JPG| Valves used to control which acid is drawn in (Nitric or Sulphuric) and pump into chamber where IC is placed.
+File:BG Model 250 Side 1.JPG|Valves used to control which acid is drawn in (Nitric or Sulphuric) and pump into chamber where IC is placed.
-File:BG Model 250 Side 2.JPG| Etcher PCB with relay and components, large cylinder used to raise/lower lid and various valves/pressure sensors.
+File:BG Model 250 Side 2.JPG|Etcher PCB with relay and components, large cylinder used to raise/lower lid and various valves/pressure sensors.
-File:BG Model 250 Top Chamber.JPG| Etching chamber, when lid is lowered a seal is formed and the chamber is pressurized with Nitrogen. An error is presented to the user if an adequate seal is not formed.
+File:BG Model 250 Top Chamber.JPG|Etching chamber, when lid is lowered a seal is formed and the chamber is pressurized with Nitrogen. An error is presented to the user if an adequate seal is not formed.
-File:BG Model 250 Side 1 Top.JPG| Side/Rear view showing acid valves and chamber. The lid of the chamber lifts and rotates using a groove cut into the shaft.
+File:BG Model 250 Side 1 Top.JPG|Side/Rear view showing acid valves and chamber. The lid of the chamber lifts and rotates using a groove cut into the shaft.
-File:BG Model 250 Side 2 Cylinder.JPG| View of the large cylinder used to lift the lid and the pressure valve that feeds Nitrogen in to either lift or lower the lid.
+File:BG Model 250 Side 2 Cylinder.JPG|View of the large cylinder used to lift the lid and the pressure valve that feeds Nitrogen in to either lift or lower the lid.
-File:BG Model 250 Side 2 Valve.JPG| Another view showing the pressure regulators and valve used to control large cylinder.
+File:BG Model 250 Side 2 Valve.JPG|Another view showing the pressure regulators and valve used to control large cylinder.
-File:BG Model 250 Side 1 Vent Valve.JPG| Pressure relief valve used to release pressure in the chamber. Pressure is vented out to the waste acid capture container. This container must not be sealed unlike the fresh acid containers which are sealed.
+File:BG Model 250 Side 1 Vent Valve.JPG|Pressure relief valve used to release pressure in the chamber. Pressure is vented out to the waste acid capture container. This container must not be sealed unlike the fresh acid containers which are sealed.
-File:BG Model 250 Side 2 Cylinder Valve.JPG| Close up picture of the valve used to control the large cylinder that lifts/lowers the chamber lid.
+File:BG Model 250 Side 2 Cylinder Valve.JPG|Close up picture of the valve used to control the large cylinder that lifts/lowers the chamber lid.
 </gallery><br />
+*

@@ Line 11: / Line 11: @@
 **This patent references the Model 250 as prior art and presents an improvement whereby less acid is used and it appears tighter control over the temperature. The Model 250 heats up a larger area where the IC is placed, this patent seems to describe heating only the acid jet reducing time to decapsulate.
 <br />[[File:John W. Evans, Jillian Y. Evans, Dong-su Ryu (auth.), John W. Evans, Jillian Y. Evans (eds.) - Product Integrity and Reliability in Design-Springer-Verlag London (2001).jpg]]<br />
+*

@@ Line 10: / Line 10: @@
 *[https://wiki.recessim.com/w/images/4/40/US5766496.pdf Patent 5,766,496] - Decapsulator and method for decapsulating plastic encapsulated device.
 **This patent references the Model 250 as prior art and presents an improvement whereby less acid is used and it appears tighter control over the temperature. The Model 250 heats up a larger area where the IC is placed, this patent seems to describe heating only the acid jet reducing time to decapsulate.
+*