FR-4: Revision history

12 April 2024

• curprev 07:1707:17, 12 April 2024 CoolieCoolster talk contribs m 8,054 bytes +10 Fixed typos (via WP:JWB) undo

3 August 2023

• curprev 18:3818:38, 3 August 2023 Citation bot talk contribs 8,044 bytes +36 Alter: title, template type. Add: chapter. Removed parameters. | Use this bot. Report bugs. | Suggested by Headbomb | Linked from Wikipedia:WikiProject_Academic_Journals/Journals_cited_by_Wikipedia/Sandbox2 | #UCB_webform_linked 550/2044 undo

23 July 2023

• curprev 13:1413:14, 23 July 2023 Citation bot talk contribs 8,008 bytes +23 Alter: journal. Add: bibcode, s2cid, isbn. Removed parameters. Some additions/deletions were parameter name changes. | Use this bot. Report bugs. | Suggested by Headbomb | Linked from Wikipedia:WikiProject_Academic_Journals/Journals_cited_by_Wikipedia/Sandbox2 | #UCB_webform_linked 198/2384 undo

4 September 2022

• curprev 03:3503:35, 4 September 2022 209.44.206.239 talk 7,985 bytes +1 corrected a link undo

5 May 2022

• curprev 20:3320:33, 5 May 2022 Wtshymanski talk contribs 7,984 bytes +205 rv v Undid revision 1085989352 by 50.204.36.91 (talk) undo Tag: Undo

3 May 2022

• curprev 14:5814:58, 3 May 2022 50.204.36.91 talk 7,779 bytes −205 →Properties undo Tag: Reverted

9 April 2022

• curprev 00:4900:49, 9 April 2022 Sammi Brie talk contribs 7,984 bytes +90 Adding local short description: "NEMA grade designation for glass-reinforced epoxy laminate material", overriding Wikidata description "is a widely accepted international grade designation for fiberglass reinforced epoxy laminates that are Flame Retardant (self extinguishing)" (Shortdesc helper) undo

22 September 2021

• curprev 04:2704:27, 22 September 2021 Opencooper talk contribs 7,894 bytes −4 →top: unnecessary bolding undo

20 March 2021

• curprev 14:1314:13, 20 March 2021 Matthiaspaul talk contribs 7,898 bytes −1,295 →Applications: Moved off-topic section on copper weights to Printed circuit board article undo
• curprev 12:4812:48, 20 March 2021 Matthiaspaul talk contribs 9,193 bytes +4 fixed ref undo
• curprev 12:4712:47, 20 March 2021 Matthiaspaul talk contribs 9,189 bytes +15 →References: improved refs undo
• curprev 12:1512:15, 20 March 2021 Matthiaspaul talk contribs 9,174 bytes +530 improved refs undo

8 February 2021

• curprev 14:2114:21, 8 February 2021 89.242.111.50 talk 8,644 bytes +46 →Applications: mismatch of stated thicknesses; added missing thickness for 1/2 oz copper undo

20 December 2020

• curprev 18:4018:40, 20 December 2020 AnomieBOT talk contribs m 8,598 bytes +19 Dating maintenance tags: {{Citation needed}} undo
• curprev 16:3916:39, 20 December 2020 99.149.215.65 talk 8,579 bytes +19 surprising and uncited claim undo

9 December 2020

• curprev 22:2422:24, 9 December 2020 Monkbot talk contribs m 8,560 bytes −24 Task 18 (cosmetic): eval 5 templates: del empty params (3×); undo Tag: AWB

6 November 2020

• curprev 09:2509:25, 6 November 2020 WikiCleanerBot talk contribs m 8,584 bytes −2 v2.03b - Bot T20 CW#61 - WP:WCW project (Reference before punctuation) undo Tag: WPCleaner

4 November 2020

• curprev 22:3822:38, 4 November 2020 Finlay McWalter talk contribs 8,586 bytes 0 →Properties: ce undo

20 October 2020

• curprev 13:2513:25, 20 October 2020 197.185.102.228 talk 8,586 bytes +926 Added Sources for dielectric constant and added Loss Tangent property below the dielectric constant property with a sources undo Tag: Visual edit

14 October 2020

• curprev 14:0114:01, 14 October 2020 BjKa talk contribs 7,660 bytes −64 →Properties undo

14 September 2020

• curprev 21:1521:15, 14 September 2020 Wtshymanski talk contribs 7,724 bytes −1 stray punctuation undo

4 September 2020

• curprev 14:4914:49, 4 September 2020 PolychromePlatypus talk contribs 7,725 bytes +234 Add missing 1/2 ounce foil among the common weights. It’s not for 2 sided PWBs with drilled-only holes. It is used when plating for through holes increases the finished copper weight to the required thickness. Thinner copper foil needs less wet etching so it doesn’t undercut edges and narrow traces have less “mouse bite” narrowing. The authoritative source is IPC-4562A for copper foil, but it’s behind a pay wall. Search “1/2 ounce copper foil” for many relevant sources. undo Tags: Visual edit Mobile edit Mobile web edit

12 June 2020

• curprev 11:3511:35, 12 June 2020 ClueBot NG talk contribs m 7,491 bytes −47 Reverting possible vandalism by 2604:6000:1312:820C:F5FC:E854:16B8:BEC5 to version by 2601:445:4380:7DD0:A5DF:B55B:20B2:2E64. Report False Positive? Thanks, ClueBot NG. (3727644) (Bot) undo Tag: Rollback
• curprev 11:3511:35, 12 June 2020 2604:6000:1312:820c:f5fc:e854:16b8:bec5 talk 7,538 bytes +47 →Properties undo

29 October 2019

• curprev 01:4901:49, 29 October 2019 2601:445:4380:7dd0:a5df:b55b:20b2:2e64 talk 7,491 bytes −1 No edit summary undo
• curprev 01:4801:48, 29 October 2019 2601:445:4380:7dd0:a5df:b55b:20b2:2e64 talk 7,492 bytes +38 No edit summary undo

19 October 2019

• curprev 01:5501:55, 19 October 2019 136.56.160.69 talk 7,454 bytes +102 No edit summary undo

6 September 2019

• curprev 19:0319:03, 6 September 2019 Beland talk contribs m 7,352 bytes 0 convert special characters (via WP:JWB) undo

31 July 2019

• curprev 08:4508:45, 31 July 2019 106.51.78.8 talk 7,352 bytes 0 →Properties undo

16 July 2019

• curprev 14:1514:15, 16 July 2019 75.98.135.14 talk 7,352 bytes +19 No edit summary undo

2 April 2019

• curprev 18:0418:04, 2 April 2019 66.11.82.122 talk 7,333 bytes +10 Undid revision 890566977 by 117.193.124.242 (talk) undo Tag: Undo
• curprev 03:3103:31, 2 April 2019 117.193.124.242 talk 7,323 bytes −10 No edit summary undo

28 March 2019

• curprev 02:1902:19, 28 March 2019 2001:44b8:2118:1100:b8cf:610d:34d5:887f talk 7,333 bytes +6 Consistent hyphenisation undo

24 July 2018

• curprev 06:4206:42, 24 July 2018 BattyBot talk contribs 7,327 bytes −12 →top: Removed Template:Multiple issues and General fixes using AWB undo

14 May 2018

• curprev 07:5007:50, 14 May 2018 103.76.136.254 talk 7,339 bytes −66 No edit summary undo

5 April 2018

• curprev 19:3519:35, 5 April 2018 Adfred123 talk contribs m 7,405 bytes 0 →Properties: Change to more common units: lb/in^3. undo

4 April 2018

• curprev 07:5807:58, 4 April 2018 213.106.145.45 talk 7,405 bytes 0 No edit summary undo

19 February 2018

• curprev 04:2604:26, 19 February 2018 178.16.10.62 talk 7,405 bytes −1 →Applications undo
• curprev 04:2004:20, 19 February 2018 178.16.10.62 talk 7,406 bytes +144 →Properties undo

31 January 2018

• curprev 11:0211:02, 31 January 2018 213.106.145.45 talk 7,262 bytes +7 →Properties undo

20 December 2017

• curprev 21:0421:04, 20 December 2017 Wtshymanski talk contribs 7,255 bytes −61 formatting undo
• curprev 21:0121:01, 20 December 2017 Wtshymanski talk contribs 7,316 bytes −813 formatting, ce undo

22 November 2017

• curprev 15:5415:54, 22 November 2017 Tom.Reding talk contribs m 8,129 bytes −5 Rep typographic ligatures like "fi" with plain text; possible ref cleanup; WP:GenFixes on, replaced: fi → fi using AWB undo

3 November 2017

• curprev 10:3610:36, 3 November 2017 115.99.93.2 talk 8,134 bytes −260 No edit summary undo

27 August 2017

• curprev 13:2113:21, 27 August 2017 87.115.114.56 talk 8,394 bytes +10 →See also: Add Wikilink to related material, FR-2 undo

1 July 2017

• curprev 13:0913:09, 1 July 2017 Frietjes talk contribs 8,384 bytes 0 No edit summary undo

10 June 2017

• curprev 09:2909:29, 10 June 2017 The Anome talk contribs 8,384 bytes −13 glass-reinforced epoxy laminate, printed circuit boards, composite material undo

16 May 2017

• curprev 11:0111:01, 16 May 2017 165.225.72.136 talk 8,397 bytes +75 Hi, I have added clarification of abbrevations: "where: LW = lengthwise CW = crosswise PF = perpendicular to laminate face" I also think that SW for sound speed is not correct, however a source of data would give a light on meaning of this short. Abbrew undo

10 May 2017

• curprev 08:3308:33, 10 May 2017 Andy Dingley talk contribs 8,322 bytes +10 removed Category:Electronics manufacturing; added Category:Printed circuit board manufacturing using HotCat undo
• curprev 08:3208:32, 10 May 2017 Andy Dingley talk contribs 8,312 bytes +39 added Category:Fibre-reinforced polymers using HotCat undo