Advanced PCB Layout – 1 _ FEDEVEL Academy

10/29/2018

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Advanced PCB Advanced PCB Layout – 1

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Content of Lesson Lesson 1

1. (00:00) Introduction

58. (1:07:17) Analog parts placement

2. (00:17) About the iMX6 Rex Project Project

59. (1:08:46) About separating analog ground

3. (02:35) Why placement is important

60. (1:09:24) Placing SD sockets

4. (03:33) Placing CPU an CPU and d DDR mem memor oryy chip chipss

61. (1:10:24) Components on the side panel

5. (04:38) (04:38) How How to use a seco second nd monit onitor or

62. (1:11:17) Standoff components

6. (05:12) Splitting the scr the scre een

63. (1:12:14) Follow interface specication when placing connectors

7. (05:30) How to set up and use Cross Select Mode

64. (1:12:46) Place input power connectors close to each other

8. (06:22) Set up the zoom feature in schematic

65. (1:13:06) Advantages of boxed connector version

9. (06:54) Placing board to board connectors

66. (1:15:36) Placing mounting holes

10. (07:30) How to setup grid

67. (1:16:33) Coordinates of components which need a hole in the enclosure

11. (08:23) For placement use Reposition Selected Components command

68. (1:17:56) About LEDs placed on a panel

12. (08:49) Placing all the big and important components

69. (1:18:45) Why to use th rough hole connectors

13. (11:05) When placing component try to use short connections

70. (1:19:28) About the way how cards will be inserted

14. (11:49) Placement of the big components for power supplies

71. (1:21:48) Mark up keep out areas

15. (13:36) How to highlight a net

72. (1:22:36) How the outline can help during assembling

16. (14:40) For power supplies use as short connection as possible

73. (1:23:39) Use a nice pin 1 position

17. (16:30) Routing tracks under a sw itching power supply area

74. (1:23:54) Make some space for additional overlay text

18. (18:10) Try to make the board as small as possible

75. (1:24:27) Placing testpoints

19. (19:36) How to redraw board shape

76. (1:25:47) Fiducials placement

20. (21:04) Important connections of switching power supply design

77. (1:27:01) Why panelize a PCB

21. (21:49) How to set the origin

78. (1:27:36) High current distribution

22. (22:43) About power distribution

79. (1:30:23) Placing ESD protection

23. (24:11) How to hide component designators

80. (1:32:04) Swapping ESD protection pins

24. (26:08) Lock important components after placement

81. (1:34:27) Filters placement

25. (26:48) Importance of mounting holes

82. (1:35:27) Placing small components close to through hole pins

26. (27:16) Why to make component outline bigger

83. (1:36:18) Using optional resistors

27. (28:17) About placing components close to the PCB edge

84. (1:38:43) Optional resistors placement for a high speed interface

28. (29:09) Heat distribution

85. (1:40:43) Placement of the optional resistors

29. (30:51) Support for a heatsink

86. (1:41:57) Mechanical checking and semitransparent 3D models

30. (31:25) Components maximum height

87. (1:42:54) Additional 3D models

31. (33:24) Read CPU design guide

88. (1:44:12) 3D model of heatsink

32. (34:20) Disable automatic zoom feature

89. (1:44:49) Importance of using accurate 3D models

33. (35:20) Initial placement under the CPU

90. (1:45:36) Rotating chips which are placed close to the edge

34. (36:10) How to disable snap on objects

91. (1:47:08) Big capacitors placement

35. (36:10) Purpose of preliminary CPU decoupling

92. (1:47:51) Placing decoupling capacitors for memories

36. (38:48) Place all the components under pr ocessor

93. (1:48:11) Multiple vias for high current power supplies

37. (39:24) How to place components for local powers

94. (1:49:03) Different size of holes for a connector

38. (40:48) Components which need to be placed close to a pin

95. (1:50:10) If possible leave some space between components

39. (42:18) About placing pullup / pulldown resistors close to the processor

96. (1:50:48) Using unions

40. (43:21) Placing small components around the chip

97. (1:52:18) Double check the placement of important components

41. (44:34) How to decide on w hich board side place small components

98. (1:54:05) Setup of the design rules check

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10/29/2018

Advanced PCB Layout – 1 | FEDEVEL Academy 42. (45:28) If possible make th e placement to look nice

99. (1:56:04) How to change basic rules

43. (46:18) Finding the best place for a pullup resistor

100. (1:57:26) Rule violations browsing

44. (47:39) Series resistors / capacitors placement

101. (1:58:26) Exceptions for component collisions

45. (49:09) Crystal placement

102. (1:59:31) Compare a footprint with the real component

46. (50:58) Placing decoupling capacitors for a chip with an exposed pad

103. (2:00:26) Update footprints

47. (53:01) Components with wide buses

104. (2:00:46) How to update component links

48. (54:50) Advantages of using micro vias

105. (2:01:41) Checking placement using a paper PCB

49. (56:56) Be sure you place all the components before the layout

106. (2:03:52) Check out free space around components soldered by hand

50. (57:48) Moving components away from board

107. (2:05:00) Using Altium templates for the standard formats

51. (59:27) Delete a layout

108. (2:06:29) Placement procedure

52. (59:55) What component to place as the rst one (baseboard)

109. (2:07:39) Checking placement

53. (1:00:55) Imagine how the nal product will look

110. (2:08:25) Checking if decoupling capacitors are not swapped

54. (1:02:00) About the space for mating connectors

111. (2:09:56) Double check placement of the key components

55. (1:02:42) Placing connectors close to the PCB edge

112. (2:10:40) Activities for this week

56. (1:04:17) About connectors placed on the PCB edge

113. (2:12:53) End of the lesson

57. (1:04:58) Importance of a good contact with an enclosure

Activities

This week activities Place all the big components on the module PCB (Place the components the way, that they will use simple and short connections. Think about how the most important interfaces will be routed. Place all the output and input capacitors for the power supplies. Try to t all the components into the size of the original design. Lock down important components.) Download the project les for this activity here Do preliminary placement under the CPU (Go trough the schematic pages and nd all the components which need to be placed close to or under the processor. Look for decoupling capacitors, crystals, beads, precise or zero ohm resistors. You do not need to worry about the exact position of the components. At this stage we want to know if all the components will t into the area.) Download the project les for this activity here Do connector placement for the Baseboard (Go through all the connectors and place them on the board.) Download the project les for this activity here Do placement of the rest of the components for the module (Choose 2 CPU schematic pages, browse through them and place all the components from these pages.) Download the project les for this activity here Do placement of the switching power supplies (Place all the components for a particular power source. If you are not sure how to place a component, nd layout recommendation for the chip.) Download the project les for this activity here EASY: Place all t he components for the +3V0_ALWAYS power supply. ADVANCED: Place all the components for th e +1V375 and +3V3 power supply controller. EXPERT: Place components for all the power supplies on the board. Do component placement for the baseboard Download the project les for this activity here EASY: Place all the chips ADVANCED: Place all the chips and big capacitors. Go through t he schematic pages and place components like LEDs, testpoints, dutials. EXPERT: Place all the components Power distribution (Open the module / baseboard PCB and inspect how the current is distributed. Look for the required current of the peripherals and check if the power sources can deliver these values.) Voluntary activities During this voluntary activity, you can work on your own project. If you dont have one, you can use our iMX6 Rex baseboard schematic and cut it down to leave the interface you would like to practise (e.g. leave PCIE, GbE, SATA, LVDS, HDMI). Import components into your PCB. Think about how your nal board will look and how the user will work with it. Place all the components on your board. Make the board as small as possible. Certicate Everyone who is interested to get the certicate: Make at least one screenshot from the work you have done this week (ideally 3-5 screenshots) Upload it here Note: It is not required, that you do all the activities to get your certicate. Practise the areas which you nd the most challenging.

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Advanced PCB Layout – 1 | FEDEVEL Academy

Links & Downloads iMX6 Rex Project website - Go to www.iMX6Rex.com Datasheet for the power supply controller Intersil ISL6236A - Download from the original site or here iMX6 Rex infrared images - Go to this page Panelized iMX6 Rex Module - See the picture PC/104 Board Examples - Google for PC104 PC/104 Specication - Download from the original site or here Hardware Development Guide for i.MX 6 Processors - Download from the original site or here How to Route DDR3 Memory and do CPU fan-out - Read the post on the Altium blog PCI Express Mini Card Electromechanical Specication - Download from the original site or here Intel Core i7 Processor Datasheet - Download from the original site or here PCI Express Card PCB Template - Go to the info page or download from Altium Vault Download full Lesson 1 directory here

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